How do I know if a partition is ext2, ext3, or ext4?
I just formatted stuff. One disk I format as ext2. The other I want to format as ext4. I want to test how they perform.
Now, how do I know the kind of file system in a partition?
linux ext4 ext3 ext2
asked Jan 9 '13 at 10:24
user4951
3,351215077
add a comment |
I just formatted stuff. One disk I format as ext2. The other I want to format as ext4. I want to test how they perform.
Now, how do I know the kind of file system in a partition?
linux ext4 ext3 ext2
asked Jan 9 '13 at 10:24
user4951
3,351215077
2
Out of curiosity, what are you trying to test? Journal vs. no journal? For the record, you can operate ext4 in no-journal mode, and still benefit from all the other new features.
– zacharyalexstern
Jan 15 '13 at 15:36
unix.stackexchange.com/questions/34623/…
– Ciro Santilli 新疆改造中心 六四事件 法轮功
Sep 12 '15 at 10:32
add a comment |
I just formatted stuff. One disk I format as ext2. The other I want to format as ext4. I want to test how they perform.
Now, how do I know the kind of file system in a partition?
linux ext4 ext3 ext2
asked Jan 9 '13 at 10:24
user4951
3,351215077
I just formatted stuff. One disk I format as ext2. The other I want to format as ext4. I want to test how they perform.
Now, how do I know the kind of file system in a partition?
linux ext4 ext3 ext2
linux ext4 ext3 ext2
asked Jan 9 '13 at 10:24
user4951
3,351215077
asked Jan 9 '13 at 10:24
user4951
3,351215077
asked Jan 9 '13 at 10:24
user4951
3,351215077
asked Jan 9 '13 at 10:24
user4951
3,351215077
asked Jan 9 '13 at 10:24
user4951
3,351215077
3,351215077
2
Out of curiosity, what are you trying to test? Journal vs. no journal? For the record, you can operate ext4 in no-journal mode, and still benefit from all the other new features.
– zacharyalexstern
Jan 15 '13 at 15:36
unix.stackexchange.com/questions/34623/…
– Ciro Santilli 新疆改造中心 六四事件 法轮功
Sep 12 '15 at 10:32
add a comment |
2
Out of curiosity, what are you trying to test? Journal vs. no journal? For the record, you can operate ext4 in no-journal mode, and still benefit from all the other new features.
– zacharyalexstern
Jan 15 '13 at 15:36
unix.stackexchange.com/questions/34623/…
– Ciro Santilli 新疆改造中心 六四事件 法轮功
Sep 12 '15 at 10:32
2
2
Out of curiosity, what are you trying to test? Journal vs. no journal? For the record, you can operate ext4 in no-journal mode, and still benefit from all the other new features.
– zacharyalexstern
Jan 15 '13 at 15:36
Out of curiosity, what are you trying to test? Journal vs. no journal? For the record, you can operate ext4 in no-journal mode, and still benefit from all the other new features.
– zacharyalexstern
Jan 15 '13 at 15:36
unix.stackexchange.com/questions/34623/…
– Ciro Santilli 新疆改造中心 六四事件 法轮功
Sep 12 '15 at 10:32
unix.stackexchange.com/questions/34623/…
– Ciro Santilli 新疆改造中心 六四事件 法轮功
Sep 12 '15 at 10:32
add a comment |
10 Answers
10
active
oldest
votes
How do I tell what sort of data (what data format) is in a file?
→ Use the file utility.
Here, you want to know the format of data in a device file, so you need to pass the -s flag to tell file not just to say that it's a device file but look at the content. Sometimes you'll need the -L flag as well, if the device file name is a symbolic link. You'll see output like this:
# file -sL /dev/sd*
/dev/sda1: Linux rev 1.0 ext4 filesystem data, UUID=63fa0104-4aab-4dc8-a50d-e2c1bf0fb188 (extents) (large files) (huge files)
/dev/sdb1: Linux rev 1.0 ext2 filesystem data, UUID=b3c82023-78e1-4ad4-b6e0-62355b272166
/dev/sdb2: Linux/i386 swap file (new style), version 1 (4K pages), size 4194303 pages, no label, UUID=3f64308c-19db-4da5-a9a0-db4d7defb80f
Given this sample output, the first disk has one partition and the second disk has two partitions. /dev/sda1 is an ext4 filesystem, /dev/sdb1 is an ext2 filesystem, and /dev/sdb2 is some swap space (about 4GB).
You must run this command as root, because ordinary users may not read disk partitions directly: if needed, add sudo in front.
answered Jan 9 '13 at 18:06
Gilles
529k12810581583
1
When entering$ sudo file /dev/sda1, I get/dev/sda1: block special
– heinrich5991
Jan 10 '13 at 16:55
2
@heinrich5991 “you need to pass the -s flag …”. I show the commandfile -s /dev/sd*− withsudoin front, that'ssudo file -s /dev/sd*.
– Gilles
Jan 10 '13 at 16:57
Oh sorry, I overlooked that. :(
– heinrich5991
Jan 10 '13 at 20:35
2
doesn't work for LVM stuff: parted -l seems to work better
– TiloBunt
Nov 28 '14 at 21:35
1
@TiloBunt Make thatfile -sL /dev/mapper/foo-bar, with the-Lflag to dereference the symlink.
– Gilles
Dec 1 '14 at 17:04
|
show 5 more comments
Another option is to use blkid:
$ blkid /dev/sda1
/dev/sda1: UUID="625fa1fa-2785-4abc-a15a-bfcc498139d1" TYPE="ext2"
This recognizes most filesystem types and stuff like encrypted partitions.
You can also search for partitions with a given type:
# blkid -t TYPE=ext2
/dev/sda1: UUID="625fa1fa-2785-4abc-a15a-bfcc498139d1" TYPE="ext2"
/dev/sdb1: UUID="b80153f4-92a1-473f-b7f6-80e601ae21ac" TYPE="ext2"
answered Jan 9 '13 at 12:47
crater2150
2,56021521
7
+1: I've verified that this gives the correct result when mounting anext2filesystem withmount -t ext4.blkidisn't fooled by that.
– Warren Young
Jan 9 '13 at 16:45
For what its worth, this also appears to work for xfs drives, though apparently it'sblkidis not as great aslsblkis at detecting unmounted drives (if you need to)
– Jose Diaz-Gonzalez
Mar 4 '15 at 22:41
Thanks! The file command wasn't working, but this gave me what I needed.
– Brain2000
Apr 14 '16 at 4:51
add a comment |
You can use sudo parted -l
[shredder12]$ sudo parted -l
Model: ATA WDC WD1600BEVT-7 (scsi)
Disk /dev/sda: 160GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 32.3kB 8587MB 8587MB primary ext3 boot
4 8587MB 40.0GB 31.4GB primary ext4
2 40.0GB 55.0GB 15.0GB primary ext4
3 55.0GB 160GB 105GB extended
5 55.0GB 158GB 103GB logical ext4
6 158GB 160GB 1999MB logical linux-swap(v1)
Source
answered Jan 9 '13 at 10:28
Karthik T
769510
1
parted is not installed. Also the drives are not mounted yet.
– user4951
Jan 9 '13 at 10:45
1
@JimThio I assume you were able to install it? You should be able to get it by simply doingsudo apt-get install parted(orgparted) if you are on Ubuntu or any other debian derivative.
– Karthik T
Jan 9 '13 at 12:24
2
+1: I've verified that this gives the correct result when mounting anext2filesystem withmount -t ext4.partedisn't fooled by that.
– Warren Young
Jan 9 '13 at 16:45
While this is not the most upvoted answer, this is the one I actually use. Also I do not need to specify the device.
– user4951
Jan 10 '13 at 2:34
Because it is not the best answer: a partition might be grub-labeled as ext2 and contains ext4 filesystem (and then would be mounted as ext4 withmount -t auto)
– Basile Starynkevitch
Jan 18 '16 at 8:18
add a comment |
Still another way, since you know you're running some flavor of ext?, is to look at the filesystem's feature list:
# tune2fs -l /dev/sda1 | grep features
If in the list you see:
extent— it's ext4- no
extent, buthas_journal— it's ext3 - neither
extentnorhas_journal— it's ext2
The parted and blkid answers are better if you want these heuristics run for you automatically. (They tell the difference with feature checks, too.) They can also identify non-ext? filesystems.
This method has the virtue of showing you the low-level differences.
The important thing to realize here is that these three filesystems are forwards compatible, and to some extent backwards-compatible, too. Later versions just add features on top of the older ones.
See the ext4 HOWTO for more information on this.
answered Jan 9 '13 at 15:28
Warren Young
54.6k10142146
add a comment |
try using df -T see man df for more options still one more way I found is cfdisk
answered Jan 9 '13 at 10:30
harish.venkat
4,4431924
2
This has the same weakness as h3rmiller'smountbased answer.
– Warren Young
Jan 9 '13 at 16:38
3
h3rrmiller removed his answer, so for those who don't have the rep to see it now, the problem is that if you saymount -t ext4on anext2filesystem,df -Treportsext4. That is, it's just reading what the mount table says, not looking at the filesystem metadata to figure this out.
– Warren Young
Jan 9 '13 at 18:19
@Warren: That's because it is an ext4 filesystem in that case. Just one with not many features.
– mattdm
Jan 9 '13 at 19:05
@mattdm: So when you unmount it...is it still an ext4 filesystem?
– Warren Young
Jan 9 '13 at 19:26
@Warren: in a sense, all ext2 filesystems are also ext4 filesystems, yes. (But of course, not in the sense most people mean.)
– mattdm
Jan 9 '13 at 19:32
|
show 1 more comment
Surprised this isn't on here already.
No sudo required:
lsblk -f
answered Dec 25 '14 at 20:52
Freedom_Ben
77421319
If I run this withoutsudotheFSTYPEcolumn is blank.
– Flup
Jul 15 '15 at 14:45
@Flup I just tried it myself again and it worked perfectly without sudo. FSTYPE column was fully populated. May be some disparity between our systems?
– Freedom_Ben
Jul 18 '15 at 1:50
@Flup - you must be using Debian/Ubuntu or derivatives... They're famous for doing something (or maybe not doing something, I wouldn't know) and the end result is you need root privileges to list somelsblkcolumns...
– don_crissti
Sep 3 '15 at 22:00
add a comment |
use -T option to print file system type
[root@centos6 ~]# df -T
Filesystem Type 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup-lv_root
ext4 6795192 6367072 76276 99% /
tmpfs tmpfs 639164 0 639164 0% /dev/shm
/dev/sda1 ext4 487652 28684 433368 7% /boot
answered Jan 18 '16 at 7:59
LawrenceLi
8517
add a comment |
fdisk -l
will list
Usage:
fdisk [options] -l <disk> list partition table(s)
fdisk -s <partition> give partition size(s) in blocks
fdisk [options] <disk> change partition table
edited Dec 20 '18 at 4:08
Sergiy Kolodyazhnyy
8,29212152
answered Jan 9 '13 at 19:03
resultsway
1213
2
On what system?fdisk, on the system I'm using at the moment at least, only shows the partition type, not the filesystem type. That means not only can't it tell the difference betweenext2,ext3, andext4, it also can't discern ReiserFS or XFS from these.
– Warren Young
Jan 9 '13 at 20:17
+1 for effort. I have done fdisk before asking this question. Keep points up.
– user4951
Jan 10 '13 at 2:35
add a comment |
Here's a useful oneliner to get just the filesystem type:
blkid -o export <partition-device> | grep '^TYPE' | cut -d"=" -f2
An example run is:
# blkid -o export /dev/sda1 | grep '^TYPE' | cut -d"=" -f2
vfat
# blkid -o export /dev/sda2 | grep '^TYPE' | cut -d"=" -f2
ext4
answered Sep 9 '16 at 13:20
Diego
1134
add a comment |
This didn't show the BSD answer I was looking for. I had the impression these type bytes were actually contained in the partition table on the disk, not sure about that. There's only type 85 for all Linux extfs types, but Linux doesn't recognize OpenBSD's A6 type at all either.
> 00 unused 20 Willowsoft 66 NetWare 386 A9 NetBSD
> 01 DOS FAT-12 24 NEC DOS 67 Novell AB MacOS X boot
> 02 XENIX / 27 Win Recovery 68 Novell AF MacOS X HFS+
> 03 XENIX /usr 38 Theos 69 Novell B7 BSDI filesy*
> 04 DOS FAT-16 39 Plan 9 70 DiskSecure B8 BSDI swap
> 05 Extended DOS 40 VENIX 286 75 PCIX BF Solaris
> 06 DOS > 32MB 41 Lin/Minux DR 80 Minix (old) C0 CTOS
> 07 NTFS 42 LinuxSwap DR 81 Minix (new) C1 DRDOSs FAT12
> 08 AIX fs 43 Linux DR 82 Linux swap C4 DRDOSs 09 AIX/Coherent 4D QNX 4.2 Pri 83 Linux files* C6 DRDOSs >=32M
> 0A OS/2 Bootmgr 4E QNX 4.2 Sec 84 OS/2 hidden C7 HPFS Disbled
> 0B Win95 FAT-32 4F QNX 4.2 Ter 85 Linux ext. DB CPM/C.DOS/C*
> 0C Win95 FAT32L 50 DM 86 NT FAT VS DE Dell Maint
> 0E DOS FAT-16 51 DM 87 NTFS VS E1 SpeedStor
> 0F Extended LBA 52 CP/M or SysV 8E Linux LVM E3 SpeedStor
> 10 OPUS 53 DM 93 Amoeba FS E4 SpeedStor
> 11 OS/2 hidden 54 Ontrack 94 Amoeba BBT EB BeOS/i386
> 12 Compaq Diag. 55 EZ-Drive 99 Mylex EE EFI GPT
> 14 OS/2 hidden 56 Golden Bow 9F BSDI EF EFI Sys
> 16 OS/2 hidden 5C Priam A0 NotebookSave F1 SpeedStor
> 17 OS/2 hidden 61 SpeedStor A5 FreeBSD F2 DOS 3.3+ Sec
> 18 AST swap 63 ISC, HURD, * A6 OpenBSD F4 SpeedStor
> 19 Willowtech 64 NetWare 2.xx A7 NEXTSTEP FF Xenix BBT
> 1C ThinkPad Rec 65 NetWare 3.xx A8 MacOS X
The formatting may get mangled, it's a nice table 70 columns wide. If you're in OpenBSD's fdisk and you hit ? when it asks for partition type this is what you get. The types show when you're editing or listing the partition table.
Partition types on Wikipedia: https://en.wikipedia.org/wiki/Partition_type
answered Feb 22 '17 at 21:44
Alan Corey
493
add a comment |
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10 Answers
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10 Answers
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How do I tell what sort of data (what data format) is in a file?
→ Use the file utility.
Here, you want to know the format of data in a device file, so you need to pass the -s flag to tell file not just to say that it's a device file but look at the content. Sometimes you'll need the -L flag as well, if the device file name is a symbolic link. You'll see output like this:
# file -sL /dev/sd*
/dev/sda1: Linux rev 1.0 ext4 filesystem data, UUID=63fa0104-4aab-4dc8-a50d-e2c1bf0fb188 (extents) (large files) (huge files)
/dev/sdb1: Linux rev 1.0 ext2 filesystem data, UUID=b3c82023-78e1-4ad4-b6e0-62355b272166
/dev/sdb2: Linux/i386 swap file (new style), version 1 (4K pages), size 4194303 pages, no label, UUID=3f64308c-19db-4da5-a9a0-db4d7defb80f
Given this sample output, the first disk has one partition and the second disk has two partitions. /dev/sda1 is an ext4 filesystem, /dev/sdb1 is an ext2 filesystem, and /dev/sdb2 is some swap space (about 4GB).
You must run this command as root, because ordinary users may not read disk partitions directly: if needed, add sudo in front.
answered Jan 9 '13 at 18:06
Gilles
529k12810581583
1
When entering$ sudo file /dev/sda1, I get/dev/sda1: block special
– heinrich5991
Jan 10 '13 at 16:55
2
@heinrich5991 “you need to pass the -s flag …”. I show the commandfile -s /dev/sd*− withsudoin front, that'ssudo file -s /dev/sd*.
– Gilles
Jan 10 '13 at 16:57
Oh sorry, I overlooked that. :(
– heinrich5991
Jan 10 '13 at 20:35
2
doesn't work for LVM stuff: parted -l seems to work better
– TiloBunt
Nov 28 '14 at 21:35
1
@TiloBunt Make thatfile -sL /dev/mapper/foo-bar, with the-Lflag to dereference the symlink.
– Gilles
Dec 1 '14 at 17:04
|
show 5 more comments
How do I tell what sort of data (what data format) is in a file?
→ Use the file utility.
Here, you want to know the format of data in a device file, so you need to pass the -s flag to tell file not just to say that it's a device file but look at the content. Sometimes you'll need the -L flag as well, if the device file name is a symbolic link. You'll see output like this:
# file -sL /dev/sd*
/dev/sda1: Linux rev 1.0 ext4 filesystem data, UUID=63fa0104-4aab-4dc8-a50d-e2c1bf0fb188 (extents) (large files) (huge files)
/dev/sdb1: Linux rev 1.0 ext2 filesystem data, UUID=b3c82023-78e1-4ad4-b6e0-62355b272166
/dev/sdb2: Linux/i386 swap file (new style), version 1 (4K pages), size 4194303 pages, no label, UUID=3f64308c-19db-4da5-a9a0-db4d7defb80f
Given this sample output, the first disk has one partition and the second disk has two partitions. /dev/sda1 is an ext4 filesystem, /dev/sdb1 is an ext2 filesystem, and /dev/sdb2 is some swap space (about 4GB).
You must run this command as root, because ordinary users may not read disk partitions directly: if needed, add sudo in front.
answered Jan 9 '13 at 18:06
Gilles
529k12810581583
1
When entering$ sudo file /dev/sda1, I get/dev/sda1: block special
– heinrich5991
Jan 10 '13 at 16:55
2
@heinrich5991 “you need to pass the -s flag …”. I show the commandfile -s /dev/sd*− withsudoin front, that'ssudo file -s /dev/sd*.
– Gilles
Jan 10 '13 at 16:57
Oh sorry, I overlooked that. :(
– heinrich5991
Jan 10 '13 at 20:35
2
doesn't work for LVM stuff: parted -l seems to work better
– TiloBunt
Nov 28 '14 at 21:35
1
@TiloBunt Make thatfile -sL /dev/mapper/foo-bar, with the-Lflag to dereference the symlink.
– Gilles
Dec 1 '14 at 17:04
|
show 5 more comments
How do I tell what sort of data (what data format) is in a file?
→ Use the file utility.
Here, you want to know the format of data in a device file, so you need to pass the -s flag to tell file not just to say that it's a device file but look at the content. Sometimes you'll need the -L flag as well, if the device file name is a symbolic link. You'll see output like this:
# file -sL /dev/sd*
/dev/sda1: Linux rev 1.0 ext4 filesystem data, UUID=63fa0104-4aab-4dc8-a50d-e2c1bf0fb188 (extents) (large files) (huge files)
/dev/sdb1: Linux rev 1.0 ext2 filesystem data, UUID=b3c82023-78e1-4ad4-b6e0-62355b272166
/dev/sdb2: Linux/i386 swap file (new style), version 1 (4K pages), size 4194303 pages, no label, UUID=3f64308c-19db-4da5-a9a0-db4d7defb80f
Given this sample output, the first disk has one partition and the second disk has two partitions. /dev/sda1 is an ext4 filesystem, /dev/sdb1 is an ext2 filesystem, and /dev/sdb2 is some swap space (about 4GB).
You must run this command as root, because ordinary users may not read disk partitions directly: if needed, add sudo in front.
answered Jan 9 '13 at 18:06
Gilles
529k12810581583
How do I tell what sort of data (what data format) is in a file?
→ Use the file utility.
Here, you want to know the format of data in a device file, so you need to pass the -s flag to tell file not just to say that it's a device file but look at the content. Sometimes you'll need the -L flag as well, if the device file name is a symbolic link. You'll see output like this:
# file -sL /dev/sd*
/dev/sda1: Linux rev 1.0 ext4 filesystem data, UUID=63fa0104-4aab-4dc8-a50d-e2c1bf0fb188 (extents) (large files) (huge files)
/dev/sdb1: Linux rev 1.0 ext2 filesystem data, UUID=b3c82023-78e1-4ad4-b6e0-62355b272166
/dev/sdb2: Linux/i386 swap file (new style), version 1 (4K pages), size 4194303 pages, no label, UUID=3f64308c-19db-4da5-a9a0-db4d7defb80f
Given this sample output, the first disk has one partition and the second disk has two partitions. /dev/sda1 is an ext4 filesystem, /dev/sdb1 is an ext2 filesystem, and /dev/sdb2 is some swap space (about 4GB).
You must run this command as root, because ordinary users may not read disk partitions directly: if needed, add sudo in front.
answered Jan 9 '13 at 18:06
Gilles
529k12810581583
edited Dec 1 '14 at 17:04
answered Jan 9 '13 at 18:06
Gilles
529k12810581583
answered Jan 9 '13 at 18:06
Gilles
529k12810581583
answered Jan 9 '13 at 18:06
Gilles
529k12810581583
529k12810581583
1
When entering$ sudo file /dev/sda1, I get/dev/sda1: block special
– heinrich5991
Jan 10 '13 at 16:55
2
@heinrich5991 “you need to pass the -s flag …”. I show the commandfile -s /dev/sd*− withsudoin front, that'ssudo file -s /dev/sd*.
– Gilles
Jan 10 '13 at 16:57
Oh sorry, I overlooked that. :(
– heinrich5991
Jan 10 '13 at 20:35
2
doesn't work for LVM stuff: parted -l seems to work better
– TiloBunt
Nov 28 '14 at 21:35
1
@TiloBunt Make thatfile -sL /dev/mapper/foo-bar, with the-Lflag to dereference the symlink.
– Gilles
Dec 1 '14 at 17:04
|
show 5 more comments
1
When entering$ sudo file /dev/sda1, I get/dev/sda1: block special
– heinrich5991
Jan 10 '13 at 16:55
2
@heinrich5991 “you need to pass the -s flag …”. I show the commandfile -s /dev/sd*− withsudoin front, that'ssudo file -s /dev/sd*.
– Gilles
Jan 10 '13 at 16:57
Oh sorry, I overlooked that. :(
– heinrich5991
Jan 10 '13 at 20:35
2
doesn't work for LVM stuff: parted -l seems to work better
– TiloBunt
Nov 28 '14 at 21:35
1
@TiloBunt Make thatfile -sL /dev/mapper/foo-bar, with the-Lflag to dereference the symlink.
– Gilles
Dec 1 '14 at 17:04
1
1
When entering
$ sudo file /dev/sda1, I get /dev/sda1: block special– heinrich5991
Jan 10 '13 at 16:55
When entering
$ sudo file /dev/sda1, I get /dev/sda1: block special– heinrich5991
Jan 10 '13 at 16:55
2
2
@heinrich5991 “you need to pass the -s flag …”. I show the command
file -s /dev/sd* − with sudo in front, that's sudo file -s /dev/sd*.– Gilles
Jan 10 '13 at 16:57
@heinrich5991 “you need to pass the -s flag …”. I show the command
file -s /dev/sd* − with sudo in front, that's sudo file -s /dev/sd*.– Gilles
Jan 10 '13 at 16:57
Oh sorry, I overlooked that. :(
– heinrich5991
Jan 10 '13 at 20:35
Oh sorry, I overlooked that. :(
– heinrich5991
Jan 10 '13 at 20:35
2
2
doesn't work for LVM stuff: parted -l seems to work better
– TiloBunt
Nov 28 '14 at 21:35
doesn't work for LVM stuff: parted -l seems to work better
– TiloBunt
Nov 28 '14 at 21:35
1
1
@TiloBunt Make that
file -sL /dev/mapper/foo-bar, with the -L flag to dereference the symlink.– Gilles
Dec 1 '14 at 17:04
@TiloBunt Make that
file -sL /dev/mapper/foo-bar, with the -L flag to dereference the symlink.– Gilles
Dec 1 '14 at 17:04
|
show 5 more comments
Another option is to use blkid:
$ blkid /dev/sda1
/dev/sda1: UUID="625fa1fa-2785-4abc-a15a-bfcc498139d1" TYPE="ext2"
This recognizes most filesystem types and stuff like encrypted partitions.
You can also search for partitions with a given type:
# blkid -t TYPE=ext2
/dev/sda1: UUID="625fa1fa-2785-4abc-a15a-bfcc498139d1" TYPE="ext2"
/dev/sdb1: UUID="b80153f4-92a1-473f-b7f6-80e601ae21ac" TYPE="ext2"
answered Jan 9 '13 at 12:47
crater2150
2,56021521
7
+1: I've verified that this gives the correct result when mounting anext2filesystem withmount -t ext4.blkidisn't fooled by that.
– Warren Young
Jan 9 '13 at 16:45
For what its worth, this also appears to work for xfs drives, though apparently it'sblkidis not as great aslsblkis at detecting unmounted drives (if you need to)
– Jose Diaz-Gonzalez
Mar 4 '15 at 22:41
Thanks! The file command wasn't working, but this gave me what I needed.
– Brain2000
Apr 14 '16 at 4:51
add a comment |
Another option is to use blkid:
$ blkid /dev/sda1
/dev/sda1: UUID="625fa1fa-2785-4abc-a15a-bfcc498139d1" TYPE="ext2"
This recognizes most filesystem types and stuff like encrypted partitions.
You can also search for partitions with a given type:
# blkid -t TYPE=ext2
/dev/sda1: UUID="625fa1fa-2785-4abc-a15a-bfcc498139d1" TYPE="ext2"
/dev/sdb1: UUID="b80153f4-92a1-473f-b7f6-80e601ae21ac" TYPE="ext2"
answered Jan 9 '13 at 12:47
crater2150
2,56021521
7
+1: I've verified that this gives the correct result when mounting anext2filesystem withmount -t ext4.blkidisn't fooled by that.
– Warren Young
Jan 9 '13 at 16:45
For what its worth, this also appears to work for xfs drives, though apparently it'sblkidis not as great aslsblkis at detecting unmounted drives (if you need to)
– Jose Diaz-Gonzalez
Mar 4 '15 at 22:41
Thanks! The file command wasn't working, but this gave me what I needed.
– Brain2000
Apr 14 '16 at 4:51
add a comment |
Another option is to use blkid:
$ blkid /dev/sda1
/dev/sda1: UUID="625fa1fa-2785-4abc-a15a-bfcc498139d1" TYPE="ext2"
This recognizes most filesystem types and stuff like encrypted partitions.
You can also search for partitions with a given type:
# blkid -t TYPE=ext2
/dev/sda1: UUID="625fa1fa-2785-4abc-a15a-bfcc498139d1" TYPE="ext2"
/dev/sdb1: UUID="b80153f4-92a1-473f-b7f6-80e601ae21ac" TYPE="ext2"
answered Jan 9 '13 at 12:47
crater2150
2,56021521
Another option is to use blkid:
$ blkid /dev/sda1
/dev/sda1: UUID="625fa1fa-2785-4abc-a15a-bfcc498139d1" TYPE="ext2"
This recognizes most filesystem types and stuff like encrypted partitions.
You can also search for partitions with a given type:
# blkid -t TYPE=ext2
/dev/sda1: UUID="625fa1fa-2785-4abc-a15a-bfcc498139d1" TYPE="ext2"
/dev/sdb1: UUID="b80153f4-92a1-473f-b7f6-80e601ae21ac" TYPE="ext2"
answered Jan 9 '13 at 12:47
crater2150
2,56021521
answered Jan 9 '13 at 12:47
crater2150
2,56021521
answered Jan 9 '13 at 12:47
crater2150
2,56021521
answered Jan 9 '13 at 12:47
crater2150
2,56021521
2,56021521
7
+1: I've verified that this gives the correct result when mounting anext2filesystem withmount -t ext4.blkidisn't fooled by that.
– Warren Young
Jan 9 '13 at 16:45
For what its worth, this also appears to work for xfs drives, though apparently it'sblkidis not as great aslsblkis at detecting unmounted drives (if you need to)
– Jose Diaz-Gonzalez
Mar 4 '15 at 22:41
Thanks! The file command wasn't working, but this gave me what I needed.
– Brain2000
Apr 14 '16 at 4:51
add a comment |
7
+1: I've verified that this gives the correct result when mounting anext2filesystem withmount -t ext4.blkidisn't fooled by that.
– Warren Young
Jan 9 '13 at 16:45
For what its worth, this also appears to work for xfs drives, though apparently it'sblkidis not as great aslsblkis at detecting unmounted drives (if you need to)
– Jose Diaz-Gonzalez
Mar 4 '15 at 22:41
Thanks! The file command wasn't working, but this gave me what I needed.
– Brain2000
Apr 14 '16 at 4:51
7
7
+1: I've verified that this gives the correct result when mounting an
ext2 filesystem with mount -t ext4. blkid isn't fooled by that.– Warren Young
Jan 9 '13 at 16:45
+1: I've verified that this gives the correct result when mounting an
ext2 filesystem with mount -t ext4. blkid isn't fooled by that.– Warren Young
Jan 9 '13 at 16:45
For what its worth, this also appears to work for xfs drives, though apparently it's
blkid is not as great as lsblk is at detecting unmounted drives (if you need to)– Jose Diaz-Gonzalez
Mar 4 '15 at 22:41
For what its worth, this also appears to work for xfs drives, though apparently it's
blkid is not as great as lsblk is at detecting unmounted drives (if you need to)– Jose Diaz-Gonzalez
Mar 4 '15 at 22:41
Thanks! The file command wasn't working, but this gave me what I needed.
– Brain2000
Apr 14 '16 at 4:51
Thanks! The file command wasn't working, but this gave me what I needed.
– Brain2000
Apr 14 '16 at 4:51
add a comment |
You can use sudo parted -l
[shredder12]$ sudo parted -l
Model: ATA WDC WD1600BEVT-7 (scsi)
Disk /dev/sda: 160GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 32.3kB 8587MB 8587MB primary ext3 boot
4 8587MB 40.0GB 31.4GB primary ext4
2 40.0GB 55.0GB 15.0GB primary ext4
3 55.0GB 160GB 105GB extended
5 55.0GB 158GB 103GB logical ext4
6 158GB 160GB 1999MB logical linux-swap(v1)
Source
answered Jan 9 '13 at 10:28
Karthik T
769510
1
parted is not installed. Also the drives are not mounted yet.
– user4951
Jan 9 '13 at 10:45
1
@JimThio I assume you were able to install it? You should be able to get it by simply doingsudo apt-get install parted(orgparted) if you are on Ubuntu or any other debian derivative.
– Karthik T
Jan 9 '13 at 12:24
2
+1: I've verified that this gives the correct result when mounting anext2filesystem withmount -t ext4.partedisn't fooled by that.
– Warren Young
Jan 9 '13 at 16:45
While this is not the most upvoted answer, this is the one I actually use. Also I do not need to specify the device.
– user4951
Jan 10 '13 at 2:34
Because it is not the best answer: a partition might be grub-labeled as ext2 and contains ext4 filesystem (and then would be mounted as ext4 withmount -t auto)
– Basile Starynkevitch
Jan 18 '16 at 8:18
add a comment |
You can use sudo parted -l
[shredder12]$ sudo parted -l
Model: ATA WDC WD1600BEVT-7 (scsi)
Disk /dev/sda: 160GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 32.3kB 8587MB 8587MB primary ext3 boot
4 8587MB 40.0GB 31.4GB primary ext4
2 40.0GB 55.0GB 15.0GB primary ext4
3 55.0GB 160GB 105GB extended
5 55.0GB 158GB 103GB logical ext4
6 158GB 160GB 1999MB logical linux-swap(v1)
Source
answered Jan 9 '13 at 10:28
Karthik T
769510
1
parted is not installed. Also the drives are not mounted yet.
– user4951
Jan 9 '13 at 10:45
1
@JimThio I assume you were able to install it? You should be able to get it by simply doingsudo apt-get install parted(orgparted) if you are on Ubuntu or any other debian derivative.
– Karthik T
Jan 9 '13 at 12:24
2
+1: I've verified that this gives the correct result when mounting anext2filesystem withmount -t ext4.partedisn't fooled by that.
– Warren Young
Jan 9 '13 at 16:45
While this is not the most upvoted answer, this is the one I actually use. Also I do not need to specify the device.
– user4951
Jan 10 '13 at 2:34
Because it is not the best answer: a partition might be grub-labeled as ext2 and contains ext4 filesystem (and then would be mounted as ext4 withmount -t auto)
– Basile Starynkevitch
Jan 18 '16 at 8:18
add a comment |
You can use sudo parted -l
[shredder12]$ sudo parted -l
Model: ATA WDC WD1600BEVT-7 (scsi)
Disk /dev/sda: 160GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 32.3kB 8587MB 8587MB primary ext3 boot
4 8587MB 40.0GB 31.4GB primary ext4
2 40.0GB 55.0GB 15.0GB primary ext4
3 55.0GB 160GB 105GB extended
5 55.0GB 158GB 103GB logical ext4
6 158GB 160GB 1999MB logical linux-swap(v1)
Source
answered Jan 9 '13 at 10:28
Karthik T
769510
You can use sudo parted -l
[shredder12]$ sudo parted -l
Model: ATA WDC WD1600BEVT-7 (scsi)
Disk /dev/sda: 160GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 32.3kB 8587MB 8587MB primary ext3 boot
4 8587MB 40.0GB 31.4GB primary ext4
2 40.0GB 55.0GB 15.0GB primary ext4
3 55.0GB 160GB 105GB extended
5 55.0GB 158GB 103GB logical ext4
6 158GB 160GB 1999MB logical linux-swap(v1)
Source
answered Jan 9 '13 at 10:28
Karthik T
769510
answered Jan 9 '13 at 10:28
Karthik T
769510
answered Jan 9 '13 at 10:28
Karthik T
769510
answered Jan 9 '13 at 10:28
Karthik T
769510
769510
1
parted is not installed. Also the drives are not mounted yet.
– user4951
Jan 9 '13 at 10:45
1
@JimThio I assume you were able to install it? You should be able to get it by simply doingsudo apt-get install parted(orgparted) if you are on Ubuntu or any other debian derivative.
– Karthik T
Jan 9 '13 at 12:24
2
+1: I've verified that this gives the correct result when mounting anext2filesystem withmount -t ext4.partedisn't fooled by that.
– Warren Young
Jan 9 '13 at 16:45
While this is not the most upvoted answer, this is the one I actually use. Also I do not need to specify the device.
– user4951
Jan 10 '13 at 2:34
Because it is not the best answer: a partition might be grub-labeled as ext2 and contains ext4 filesystem (and then would be mounted as ext4 withmount -t auto)
– Basile Starynkevitch
Jan 18 '16 at 8:18
add a comment |
1
parted is not installed. Also the drives are not mounted yet.
– user4951
Jan 9 '13 at 10:45
1
@JimThio I assume you were able to install it? You should be able to get it by simply doingsudo apt-get install parted(orgparted) if you are on Ubuntu or any other debian derivative.
– Karthik T
Jan 9 '13 at 12:24
2
+1: I've verified that this gives the correct result when mounting anext2filesystem withmount -t ext4.partedisn't fooled by that.
– Warren Young
Jan 9 '13 at 16:45
While this is not the most upvoted answer, this is the one I actually use. Also I do not need to specify the device.
– user4951
Jan 10 '13 at 2:34
Because it is not the best answer: a partition might be grub-labeled as ext2 and contains ext4 filesystem (and then would be mounted as ext4 withmount -t auto)
– Basile Starynkevitch
Jan 18 '16 at 8:18
1
1
parted is not installed. Also the drives are not mounted yet.
– user4951
Jan 9 '13 at 10:45
parted is not installed. Also the drives are not mounted yet.
– user4951
Jan 9 '13 at 10:45
1
1
@JimThio I assume you were able to install it? You should be able to get it by simply doing
sudo apt-get install parted (or gparted) if you are on Ubuntu or any other debian derivative.– Karthik T
Jan 9 '13 at 12:24
@JimThio I assume you were able to install it? You should be able to get it by simply doing
sudo apt-get install parted (or gparted) if you are on Ubuntu or any other debian derivative.– Karthik T
Jan 9 '13 at 12:24
2
2
+1: I've verified that this gives the correct result when mounting an
ext2 filesystem with mount -t ext4. parted isn't fooled by that.– Warren Young
Jan 9 '13 at 16:45
+1: I've verified that this gives the correct result when mounting an
ext2 filesystem with mount -t ext4. parted isn't fooled by that.– Warren Young
Jan 9 '13 at 16:45
While this is not the most upvoted answer, this is the one I actually use. Also I do not need to specify the device.
– user4951
Jan 10 '13 at 2:34
While this is not the most upvoted answer, this is the one I actually use. Also I do not need to specify the device.
– user4951
Jan 10 '13 at 2:34
Because it is not the best answer: a partition might be grub-labeled as ext2 and contains ext4 filesystem (and then would be mounted as ext4 with
mount -t auto)– Basile Starynkevitch
Jan 18 '16 at 8:18
Because it is not the best answer: a partition might be grub-labeled as ext2 and contains ext4 filesystem (and then would be mounted as ext4 with
mount -t auto)– Basile Starynkevitch
Jan 18 '16 at 8:18
add a comment |
Still another way, since you know you're running some flavor of ext?, is to look at the filesystem's feature list:
# tune2fs -l /dev/sda1 | grep features
If in the list you see:
extent— it's ext4- no
extent, buthas_journal— it's ext3 - neither
extentnorhas_journal— it's ext2
The parted and blkid answers are better if you want these heuristics run for you automatically. (They tell the difference with feature checks, too.) They can also identify non-ext? filesystems.
This method has the virtue of showing you the low-level differences.
The important thing to realize here is that these three filesystems are forwards compatible, and to some extent backwards-compatible, too. Later versions just add features on top of the older ones.
See the ext4 HOWTO for more information on this.
answered Jan 9 '13 at 15:28
Warren Young
54.6k10142146
add a comment |
Still another way, since you know you're running some flavor of ext?, is to look at the filesystem's feature list:
# tune2fs -l /dev/sda1 | grep features
If in the list you see:
extent— it's ext4- no
extent, buthas_journal— it's ext3 - neither
extentnorhas_journal— it's ext2
The parted and blkid answers are better if you want these heuristics run for you automatically. (They tell the difference with feature checks, too.) They can also identify non-ext? filesystems.
This method has the virtue of showing you the low-level differences.
The important thing to realize here is that these three filesystems are forwards compatible, and to some extent backwards-compatible, too. Later versions just add features on top of the older ones.
See the ext4 HOWTO for more information on this.
answered Jan 9 '13 at 15:28
Warren Young
54.6k10142146
add a comment |
Still another way, since you know you're running some flavor of ext?, is to look at the filesystem's feature list:
# tune2fs -l /dev/sda1 | grep features
If in the list you see:
extent— it's ext4- no
extent, buthas_journal— it's ext3 - neither
extentnorhas_journal— it's ext2
The parted and blkid answers are better if you want these heuristics run for you automatically. (They tell the difference with feature checks, too.) They can also identify non-ext? filesystems.
This method has the virtue of showing you the low-level differences.
The important thing to realize here is that these three filesystems are forwards compatible, and to some extent backwards-compatible, too. Later versions just add features on top of the older ones.
See the ext4 HOWTO for more information on this.
answered Jan 9 '13 at 15:28
Warren Young
54.6k10142146
Still another way, since you know you're running some flavor of ext?, is to look at the filesystem's feature list:
# tune2fs -l /dev/sda1 | grep features
If in the list you see:
extent— it's ext4- no
extent, buthas_journal— it's ext3 - neither
extentnorhas_journal— it's ext2
The parted and blkid answers are better if you want these heuristics run for you automatically. (They tell the difference with feature checks, too.) They can also identify non-ext? filesystems.
This method has the virtue of showing you the low-level differences.
The important thing to realize here is that these three filesystems are forwards compatible, and to some extent backwards-compatible, too. Later versions just add features on top of the older ones.
See the ext4 HOWTO for more information on this.
answered Jan 9 '13 at 15:28
Warren Young
54.6k10142146
edited Jan 9 '13 at 15:36
answered Jan 9 '13 at 15:28
Warren Young
54.6k10142146
answered Jan 9 '13 at 15:28
Warren Young
54.6k10142146
answered Jan 9 '13 at 15:28
Warren Young
54.6k10142146
54.6k10142146
add a comment |
add a comment |
try using df -T see man df for more options still one more way I found is cfdisk
answered Jan 9 '13 at 10:30
harish.venkat
4,4431924
2
This has the same weakness as h3rmiller'smountbased answer.
– Warren Young
Jan 9 '13 at 16:38
3
h3rrmiller removed his answer, so for those who don't have the rep to see it now, the problem is that if you saymount -t ext4on anext2filesystem,df -Treportsext4. That is, it's just reading what the mount table says, not looking at the filesystem metadata to figure this out.
– Warren Young
Jan 9 '13 at 18:19
@Warren: That's because it is an ext4 filesystem in that case. Just one with not many features.
– mattdm
Jan 9 '13 at 19:05
@mattdm: So when you unmount it...is it still an ext4 filesystem?
– Warren Young
Jan 9 '13 at 19:26
@Warren: in a sense, all ext2 filesystems are also ext4 filesystems, yes. (But of course, not in the sense most people mean.)
– mattdm
Jan 9 '13 at 19:32
|
show 1 more comment
try using df -T see man df for more options still one more way I found is cfdisk
answered Jan 9 '13 at 10:30
harish.venkat
4,4431924
2
This has the same weakness as h3rmiller'smountbased answer.
– Warren Young
Jan 9 '13 at 16:38
3
h3rrmiller removed his answer, so for those who don't have the rep to see it now, the problem is that if you saymount -t ext4on anext2filesystem,df -Treportsext4. That is, it's just reading what the mount table says, not looking at the filesystem metadata to figure this out.
– Warren Young
Jan 9 '13 at 18:19
@Warren: That's because it is an ext4 filesystem in that case. Just one with not many features.
– mattdm
Jan 9 '13 at 19:05
@mattdm: So when you unmount it...is it still an ext4 filesystem?
– Warren Young
Jan 9 '13 at 19:26
@Warren: in a sense, all ext2 filesystems are also ext4 filesystems, yes. (But of course, not in the sense most people mean.)
– mattdm
Jan 9 '13 at 19:32
|
show 1 more comment
try using df -T see man df for more options still one more way I found is cfdisk
answered Jan 9 '13 at 10:30
harish.venkat
4,4431924
try using df -T see man df for more options still one more way I found is cfdisk
answered Jan 9 '13 at 10:30
harish.venkat
4,4431924
edited Jan 9 '13 at 16:51
answered Jan 9 '13 at 10:30
harish.venkat
4,4431924
answered Jan 9 '13 at 10:30
harish.venkat
4,4431924
answered Jan 9 '13 at 10:30
harish.venkat
4,4431924
4,4431924
2
This has the same weakness as h3rmiller'smountbased answer.
– Warren Young
Jan 9 '13 at 16:38
3
h3rrmiller removed his answer, so for those who don't have the rep to see it now, the problem is that if you saymount -t ext4on anext2filesystem,df -Treportsext4. That is, it's just reading what the mount table says, not looking at the filesystem metadata to figure this out.
– Warren Young
Jan 9 '13 at 18:19
@Warren: That's because it is an ext4 filesystem in that case. Just one with not many features.
– mattdm
Jan 9 '13 at 19:05
@mattdm: So when you unmount it...is it still an ext4 filesystem?
– Warren Young
Jan 9 '13 at 19:26
@Warren: in a sense, all ext2 filesystems are also ext4 filesystems, yes. (But of course, not in the sense most people mean.)
– mattdm
Jan 9 '13 at 19:32
|
show 1 more comment
2
This has the same weakness as h3rmiller'smountbased answer.
– Warren Young
Jan 9 '13 at 16:38
3
h3rrmiller removed his answer, so for those who don't have the rep to see it now, the problem is that if you saymount -t ext4on anext2filesystem,df -Treportsext4. That is, it's just reading what the mount table says, not looking at the filesystem metadata to figure this out.
– Warren Young
Jan 9 '13 at 18:19
@Warren: That's because it is an ext4 filesystem in that case. Just one with not many features.
– mattdm
Jan 9 '13 at 19:05
@mattdm: So when you unmount it...is it still an ext4 filesystem?
– Warren Young
Jan 9 '13 at 19:26
@Warren: in a sense, all ext2 filesystems are also ext4 filesystems, yes. (But of course, not in the sense most people mean.)
– mattdm
Jan 9 '13 at 19:32
2
2
This has the same weakness as h3rmiller's
mount based answer.– Warren Young
Jan 9 '13 at 16:38
This has the same weakness as h3rmiller's
mount based answer.– Warren Young
Jan 9 '13 at 16:38
3
3
h3rrmiller removed his answer, so for those who don't have the rep to see it now, the problem is that if you say
mount -t ext4 on an ext2 filesystem, df -T reports ext4. That is, it's just reading what the mount table says, not looking at the filesystem metadata to figure this out.– Warren Young
Jan 9 '13 at 18:19
h3rrmiller removed his answer, so for those who don't have the rep to see it now, the problem is that if you say
mount -t ext4 on an ext2 filesystem, df -T reports ext4. That is, it's just reading what the mount table says, not looking at the filesystem metadata to figure this out.– Warren Young
Jan 9 '13 at 18:19
@Warren: That's because it is an ext4 filesystem in that case. Just one with not many features.
– mattdm
Jan 9 '13 at 19:05
@Warren: That's because it is an ext4 filesystem in that case. Just one with not many features.
– mattdm
Jan 9 '13 at 19:05
@mattdm: So when you unmount it...is it still an ext4 filesystem?
– Warren Young
Jan 9 '13 at 19:26
@mattdm: So when you unmount it...is it still an ext4 filesystem?
– Warren Young
Jan 9 '13 at 19:26
@Warren: in a sense, all ext2 filesystems are also ext4 filesystems, yes. (But of course, not in the sense most people mean.)
– mattdm
Jan 9 '13 at 19:32
@Warren: in a sense, all ext2 filesystems are also ext4 filesystems, yes. (But of course, not in the sense most people mean.)
– mattdm
Jan 9 '13 at 19:32
|
show 1 more comment
Surprised this isn't on here already.
No sudo required:
lsblk -f
answered Dec 25 '14 at 20:52
Freedom_Ben
77421319
If I run this withoutsudotheFSTYPEcolumn is blank.
– Flup
Jul 15 '15 at 14:45
@Flup I just tried it myself again and it worked perfectly without sudo. FSTYPE column was fully populated. May be some disparity between our systems?
– Freedom_Ben
Jul 18 '15 at 1:50
@Flup - you must be using Debian/Ubuntu or derivatives... They're famous for doing something (or maybe not doing something, I wouldn't know) and the end result is you need root privileges to list somelsblkcolumns...
– don_crissti
Sep 3 '15 at 22:00
add a comment |
Surprised this isn't on here already.
No sudo required:
lsblk -f
answered Dec 25 '14 at 20:52
Freedom_Ben
77421319
If I run this withoutsudotheFSTYPEcolumn is blank.
– Flup
Jul 15 '15 at 14:45
@Flup I just tried it myself again and it worked perfectly without sudo. FSTYPE column was fully populated. May be some disparity between our systems?
– Freedom_Ben
Jul 18 '15 at 1:50
@Flup - you must be using Debian/Ubuntu or derivatives... They're famous for doing something (or maybe not doing something, I wouldn't know) and the end result is you need root privileges to list somelsblkcolumns...
– don_crissti
Sep 3 '15 at 22:00
add a comment |
Surprised this isn't on here already.
No sudo required:
lsblk -f
answered Dec 25 '14 at 20:52
Freedom_Ben
77421319
Surprised this isn't on here already.
No sudo required:
lsblk -f
answered Dec 25 '14 at 20:52
Freedom_Ben
77421319
answered Dec 25 '14 at 20:52
Freedom_Ben
77421319
answered Dec 25 '14 at 20:52
Freedom_Ben
77421319
answered Dec 25 '14 at 20:52
Freedom_Ben
77421319
77421319
If I run this withoutsudotheFSTYPEcolumn is blank.
– Flup
Jul 15 '15 at 14:45
@Flup I just tried it myself again and it worked perfectly without sudo. FSTYPE column was fully populated. May be some disparity between our systems?
– Freedom_Ben
Jul 18 '15 at 1:50
@Flup - you must be using Debian/Ubuntu or derivatives... They're famous for doing something (or maybe not doing something, I wouldn't know) and the end result is you need root privileges to list somelsblkcolumns...
– don_crissti
Sep 3 '15 at 22:00
add a comment |
If I run this withoutsudotheFSTYPEcolumn is blank.
– Flup
Jul 15 '15 at 14:45
@Flup I just tried it myself again and it worked perfectly without sudo. FSTYPE column was fully populated. May be some disparity between our systems?
– Freedom_Ben
Jul 18 '15 at 1:50
@Flup - you must be using Debian/Ubuntu or derivatives... They're famous for doing something (or maybe not doing something, I wouldn't know) and the end result is you need root privileges to list somelsblkcolumns...
– don_crissti
Sep 3 '15 at 22:00
If I run this without
sudo the FSTYPE column is blank.– Flup
Jul 15 '15 at 14:45
If I run this without
sudo the FSTYPE column is blank.– Flup
Jul 15 '15 at 14:45
@Flup I just tried it myself again and it worked perfectly without sudo. FSTYPE column was fully populated. May be some disparity between our systems?
– Freedom_Ben
Jul 18 '15 at 1:50
@Flup I just tried it myself again and it worked perfectly without sudo. FSTYPE column was fully populated. May be some disparity between our systems?
– Freedom_Ben
Jul 18 '15 at 1:50
@Flup - you must be using Debian/Ubuntu or derivatives... They're famous for doing something (or maybe not doing something, I wouldn't know) and the end result is you need root privileges to list some
lsblk columns...– don_crissti
Sep 3 '15 at 22:00
@Flup - you must be using Debian/Ubuntu or derivatives... They're famous for doing something (or maybe not doing something, I wouldn't know) and the end result is you need root privileges to list some
lsblk columns...– don_crissti
Sep 3 '15 at 22:00
add a comment |
use -T option to print file system type
[root@centos6 ~]# df -T
Filesystem Type 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup-lv_root
ext4 6795192 6367072 76276 99% /
tmpfs tmpfs 639164 0 639164 0% /dev/shm
/dev/sda1 ext4 487652 28684 433368 7% /boot
answered Jan 18 '16 at 7:59
LawrenceLi
8517
add a comment |
use -T option to print file system type
[root@centos6 ~]# df -T
Filesystem Type 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup-lv_root
ext4 6795192 6367072 76276 99% /
tmpfs tmpfs 639164 0 639164 0% /dev/shm
/dev/sda1 ext4 487652 28684 433368 7% /boot
answered Jan 18 '16 at 7:59
LawrenceLi
8517
add a comment |
use -T option to print file system type
[root@centos6 ~]# df -T
Filesystem Type 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup-lv_root
ext4 6795192 6367072 76276 99% /
tmpfs tmpfs 639164 0 639164 0% /dev/shm
/dev/sda1 ext4 487652 28684 433368 7% /boot
answered Jan 18 '16 at 7:59
LawrenceLi
8517
use -T option to print file system type
[root@centos6 ~]# df -T
Filesystem Type 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup-lv_root
ext4 6795192 6367072 76276 99% /
tmpfs tmpfs 639164 0 639164 0% /dev/shm
/dev/sda1 ext4 487652 28684 433368 7% /boot
answered Jan 18 '16 at 7:59
LawrenceLi
8517
answered Jan 18 '16 at 7:59
LawrenceLi
8517
answered Jan 18 '16 at 7:59
LawrenceLi
8517
answered Jan 18 '16 at 7:59
LawrenceLi
8517
8517
add a comment |
add a comment |
fdisk -l
will list
Usage:
fdisk [options] -l <disk> list partition table(s)
fdisk -s <partition> give partition size(s) in blocks
fdisk [options] <disk> change partition table
edited Dec 20 '18 at 4:08
Sergiy Kolodyazhnyy
8,29212152
answered Jan 9 '13 at 19:03
resultsway
1213
2
On what system?fdisk, on the system I'm using at the moment at least, only shows the partition type, not the filesystem type. That means not only can't it tell the difference betweenext2,ext3, andext4, it also can't discern ReiserFS or XFS from these.
– Warren Young
Jan 9 '13 at 20:17
+1 for effort. I have done fdisk before asking this question. Keep points up.
– user4951
Jan 10 '13 at 2:35
add a comment |
fdisk -l
will list
Usage:
fdisk [options] -l <disk> list partition table(s)
fdisk -s <partition> give partition size(s) in blocks
fdisk [options] <disk> change partition table
edited Dec 20 '18 at 4:08
Sergiy Kolodyazhnyy
8,29212152
answered Jan 9 '13 at 19:03
resultsway
1213
2
On what system?fdisk, on the system I'm using at the moment at least, only shows the partition type, not the filesystem type. That means not only can't it tell the difference betweenext2,ext3, andext4, it also can't discern ReiserFS or XFS from these.
– Warren Young
Jan 9 '13 at 20:17
+1 for effort. I have done fdisk before asking this question. Keep points up.
– user4951
Jan 10 '13 at 2:35
add a comment |
fdisk -l
will list
Usage:
fdisk [options] -l <disk> list partition table(s)
fdisk -s <partition> give partition size(s) in blocks
fdisk [options] <disk> change partition table
edited Dec 20 '18 at 4:08
Sergiy Kolodyazhnyy
8,29212152
answered Jan 9 '13 at 19:03
resultsway
1213
fdisk -l
will list
Usage:
fdisk [options] -l <disk> list partition table(s)
fdisk -s <partition> give partition size(s) in blocks
fdisk [options] <disk> change partition table
edited Dec 20 '18 at 4:08
Sergiy Kolodyazhnyy
8,29212152
answered Jan 9 '13 at 19:03
resultsway
1213
edited Dec 20 '18 at 4:08
Sergiy Kolodyazhnyy
8,29212152
edited Dec 20 '18 at 4:08
Sergiy Kolodyazhnyy
8,29212152
edited Dec 20 '18 at 4:08
Sergiy Kolodyazhnyy
8,29212152
8,29212152
answered Jan 9 '13 at 19:03
resultsway
1213
answered Jan 9 '13 at 19:03
resultsway
1213
answered Jan 9 '13 at 19:03
resultsway
1213
1213
2
On what system?fdisk, on the system I'm using at the moment at least, only shows the partition type, not the filesystem type. That means not only can't it tell the difference betweenext2,ext3, andext4, it also can't discern ReiserFS or XFS from these.
– Warren Young
Jan 9 '13 at 20:17
+1 for effort. I have done fdisk before asking this question. Keep points up.
– user4951
Jan 10 '13 at 2:35
add a comment |
2
On what system?fdisk, on the system I'm using at the moment at least, only shows the partition type, not the filesystem type. That means not only can't it tell the difference betweenext2,ext3, andext4, it also can't discern ReiserFS or XFS from these.
– Warren Young
Jan 9 '13 at 20:17
+1 for effort. I have done fdisk before asking this question. Keep points up.
– user4951
Jan 10 '13 at 2:35
2
2
On what system?
fdisk, on the system I'm using at the moment at least, only shows the partition type, not the filesystem type. That means not only can't it tell the difference between ext2, ext3, and ext4, it also can't discern ReiserFS or XFS from these.– Warren Young
Jan 9 '13 at 20:17
On what system?
fdisk, on the system I'm using at the moment at least, only shows the partition type, not the filesystem type. That means not only can't it tell the difference between ext2, ext3, and ext4, it also can't discern ReiserFS or XFS from these.– Warren Young
Jan 9 '13 at 20:17
+1 for effort. I have done fdisk before asking this question. Keep points up.
– user4951
Jan 10 '13 at 2:35
+1 for effort. I have done fdisk before asking this question. Keep points up.
– user4951
Jan 10 '13 at 2:35
add a comment |
Here's a useful oneliner to get just the filesystem type:
blkid -o export <partition-device> | grep '^TYPE' | cut -d"=" -f2
An example run is:
# blkid -o export /dev/sda1 | grep '^TYPE' | cut -d"=" -f2
vfat
# blkid -o export /dev/sda2 | grep '^TYPE' | cut -d"=" -f2
ext4
answered Sep 9 '16 at 13:20
Diego
1134
add a comment |
Here's a useful oneliner to get just the filesystem type:
blkid -o export <partition-device> | grep '^TYPE' | cut -d"=" -f2
An example run is:
# blkid -o export /dev/sda1 | grep '^TYPE' | cut -d"=" -f2
vfat
# blkid -o export /dev/sda2 | grep '^TYPE' | cut -d"=" -f2
ext4
answered Sep 9 '16 at 13:20
Diego
1134
add a comment |
Here's a useful oneliner to get just the filesystem type:
blkid -o export <partition-device> | grep '^TYPE' | cut -d"=" -f2
An example run is:
# blkid -o export /dev/sda1 | grep '^TYPE' | cut -d"=" -f2
vfat
# blkid -o export /dev/sda2 | grep '^TYPE' | cut -d"=" -f2
ext4
answered Sep 9 '16 at 13:20
Diego
1134
Here's a useful oneliner to get just the filesystem type:
blkid -o export <partition-device> | grep '^TYPE' | cut -d"=" -f2
An example run is:
# blkid -o export /dev/sda1 | grep '^TYPE' | cut -d"=" -f2
vfat
# blkid -o export /dev/sda2 | grep '^TYPE' | cut -d"=" -f2
ext4
answered Sep 9 '16 at 13:20
Diego
1134
answered Sep 9 '16 at 13:20
Diego
1134
answered Sep 9 '16 at 13:20
Diego
1134
answered Sep 9 '16 at 13:20
Diego
1134
1134
add a comment |
add a comment |
This didn't show the BSD answer I was looking for. I had the impression these type bytes were actually contained in the partition table on the disk, not sure about that. There's only type 85 for all Linux extfs types, but Linux doesn't recognize OpenBSD's A6 type at all either.
> 00 unused 20 Willowsoft 66 NetWare 386 A9 NetBSD
> 01 DOS FAT-12 24 NEC DOS 67 Novell AB MacOS X boot
> 02 XENIX / 27 Win Recovery 68 Novell AF MacOS X HFS+
> 03 XENIX /usr 38 Theos 69 Novell B7 BSDI filesy*
> 04 DOS FAT-16 39 Plan 9 70 DiskSecure B8 BSDI swap
> 05 Extended DOS 40 VENIX 286 75 PCIX BF Solaris
> 06 DOS > 32MB 41 Lin/Minux DR 80 Minix (old) C0 CTOS
> 07 NTFS 42 LinuxSwap DR 81 Minix (new) C1 DRDOSs FAT12
> 08 AIX fs 43 Linux DR 82 Linux swap C4 DRDOSs 09 AIX/Coherent 4D QNX 4.2 Pri 83 Linux files* C6 DRDOSs >=32M
> 0A OS/2 Bootmgr 4E QNX 4.2 Sec 84 OS/2 hidden C7 HPFS Disbled
> 0B Win95 FAT-32 4F QNX 4.2 Ter 85 Linux ext. DB CPM/C.DOS/C*
> 0C Win95 FAT32L 50 DM 86 NT FAT VS DE Dell Maint
> 0E DOS FAT-16 51 DM 87 NTFS VS E1 SpeedStor
> 0F Extended LBA 52 CP/M or SysV 8E Linux LVM E3 SpeedStor
> 10 OPUS 53 DM 93 Amoeba FS E4 SpeedStor
> 11 OS/2 hidden 54 Ontrack 94 Amoeba BBT EB BeOS/i386
> 12 Compaq Diag. 55 EZ-Drive 99 Mylex EE EFI GPT
> 14 OS/2 hidden 56 Golden Bow 9F BSDI EF EFI Sys
> 16 OS/2 hidden 5C Priam A0 NotebookSave F1 SpeedStor
> 17 OS/2 hidden 61 SpeedStor A5 FreeBSD F2 DOS 3.3+ Sec
> 18 AST swap 63 ISC, HURD, * A6 OpenBSD F4 SpeedStor
> 19 Willowtech 64 NetWare 2.xx A7 NEXTSTEP FF Xenix BBT
> 1C ThinkPad Rec 65 NetWare 3.xx A8 MacOS X
The formatting may get mangled, it's a nice table 70 columns wide. If you're in OpenBSD's fdisk and you hit ? when it asks for partition type this is what you get. The types show when you're editing or listing the partition table.
Partition types on Wikipedia: https://en.wikipedia.org/wiki/Partition_type
answered Feb 22 '17 at 21:44
Alan Corey
493
add a comment |
This didn't show the BSD answer I was looking for. I had the impression these type bytes were actually contained in the partition table on the disk, not sure about that. There's only type 85 for all Linux extfs types, but Linux doesn't recognize OpenBSD's A6 type at all either.
> 00 unused 20 Willowsoft 66 NetWare 386 A9 NetBSD
> 01 DOS FAT-12 24 NEC DOS 67 Novell AB MacOS X boot
> 02 XENIX / 27 Win Recovery 68 Novell AF MacOS X HFS+
> 03 XENIX /usr 38 Theos 69 Novell B7 BSDI filesy*
> 04 DOS FAT-16 39 Plan 9 70 DiskSecure B8 BSDI swap
> 05 Extended DOS 40 VENIX 286 75 PCIX BF Solaris
> 06 DOS > 32MB 41 Lin/Minux DR 80 Minix (old) C0 CTOS
> 07 NTFS 42 LinuxSwap DR 81 Minix (new) C1 DRDOSs FAT12
> 08 AIX fs 43 Linux DR 82 Linux swap C4 DRDOSs 09 AIX/Coherent 4D QNX 4.2 Pri 83 Linux files* C6 DRDOSs >=32M
> 0A OS/2 Bootmgr 4E QNX 4.2 Sec 84 OS/2 hidden C7 HPFS Disbled
> 0B Win95 FAT-32 4F QNX 4.2 Ter 85 Linux ext. DB CPM/C.DOS/C*
> 0C Win95 FAT32L 50 DM 86 NT FAT VS DE Dell Maint
> 0E DOS FAT-16 51 DM 87 NTFS VS E1 SpeedStor
> 0F Extended LBA 52 CP/M or SysV 8E Linux LVM E3 SpeedStor
> 10 OPUS 53 DM 93 Amoeba FS E4 SpeedStor
> 11 OS/2 hidden 54 Ontrack 94 Amoeba BBT EB BeOS/i386
> 12 Compaq Diag. 55 EZ-Drive 99 Mylex EE EFI GPT
> 14 OS/2 hidden 56 Golden Bow 9F BSDI EF EFI Sys
> 16 OS/2 hidden 5C Priam A0 NotebookSave F1 SpeedStor
> 17 OS/2 hidden 61 SpeedStor A5 FreeBSD F2 DOS 3.3+ Sec
> 18 AST swap 63 ISC, HURD, * A6 OpenBSD F4 SpeedStor
> 19 Willowtech 64 NetWare 2.xx A7 NEXTSTEP FF Xenix BBT
> 1C ThinkPad Rec 65 NetWare 3.xx A8 MacOS X
The formatting may get mangled, it's a nice table 70 columns wide. If you're in OpenBSD's fdisk and you hit ? when it asks for partition type this is what you get. The types show when you're editing or listing the partition table.
Partition types on Wikipedia: https://en.wikipedia.org/wiki/Partition_type
answered Feb 22 '17 at 21:44
Alan Corey
493
add a comment |
This didn't show the BSD answer I was looking for. I had the impression these type bytes were actually contained in the partition table on the disk, not sure about that. There's only type 85 for all Linux extfs types, but Linux doesn't recognize OpenBSD's A6 type at all either.
> 00 unused 20 Willowsoft 66 NetWare 386 A9 NetBSD
> 01 DOS FAT-12 24 NEC DOS 67 Novell AB MacOS X boot
> 02 XENIX / 27 Win Recovery 68 Novell AF MacOS X HFS+
> 03 XENIX /usr 38 Theos 69 Novell B7 BSDI filesy*
> 04 DOS FAT-16 39 Plan 9 70 DiskSecure B8 BSDI swap
> 05 Extended DOS 40 VENIX 286 75 PCIX BF Solaris
> 06 DOS > 32MB 41 Lin/Minux DR 80 Minix (old) C0 CTOS
> 07 NTFS 42 LinuxSwap DR 81 Minix (new) C1 DRDOSs FAT12
> 08 AIX fs 43 Linux DR 82 Linux swap C4 DRDOSs 09 AIX/Coherent 4D QNX 4.2 Pri 83 Linux files* C6 DRDOSs >=32M
> 0A OS/2 Bootmgr 4E QNX 4.2 Sec 84 OS/2 hidden C7 HPFS Disbled
> 0B Win95 FAT-32 4F QNX 4.2 Ter 85 Linux ext. DB CPM/C.DOS/C*
> 0C Win95 FAT32L 50 DM 86 NT FAT VS DE Dell Maint
> 0E DOS FAT-16 51 DM 87 NTFS VS E1 SpeedStor
> 0F Extended LBA 52 CP/M or SysV 8E Linux LVM E3 SpeedStor
> 10 OPUS 53 DM 93 Amoeba FS E4 SpeedStor
> 11 OS/2 hidden 54 Ontrack 94 Amoeba BBT EB BeOS/i386
> 12 Compaq Diag. 55 EZ-Drive 99 Mylex EE EFI GPT
> 14 OS/2 hidden 56 Golden Bow 9F BSDI EF EFI Sys
> 16 OS/2 hidden 5C Priam A0 NotebookSave F1 SpeedStor
> 17 OS/2 hidden 61 SpeedStor A5 FreeBSD F2 DOS 3.3+ Sec
> 18 AST swap 63 ISC, HURD, * A6 OpenBSD F4 SpeedStor
> 19 Willowtech 64 NetWare 2.xx A7 NEXTSTEP FF Xenix BBT
> 1C ThinkPad Rec 65 NetWare 3.xx A8 MacOS X
The formatting may get mangled, it's a nice table 70 columns wide. If you're in OpenBSD's fdisk and you hit ? when it asks for partition type this is what you get. The types show when you're editing or listing the partition table.
Partition types on Wikipedia: https://en.wikipedia.org/wiki/Partition_type
answered Feb 22 '17 at 21:44
Alan Corey
493
This didn't show the BSD answer I was looking for. I had the impression these type bytes were actually contained in the partition table on the disk, not sure about that. There's only type 85 for all Linux extfs types, but Linux doesn't recognize OpenBSD's A6 type at all either.
> 00 unused 20 Willowsoft 66 NetWare 386 A9 NetBSD
> 01 DOS FAT-12 24 NEC DOS 67 Novell AB MacOS X boot
> 02 XENIX / 27 Win Recovery 68 Novell AF MacOS X HFS+
> 03 XENIX /usr 38 Theos 69 Novell B7 BSDI filesy*
> 04 DOS FAT-16 39 Plan 9 70 DiskSecure B8 BSDI swap
> 05 Extended DOS 40 VENIX 286 75 PCIX BF Solaris
> 06 DOS > 32MB 41 Lin/Minux DR 80 Minix (old) C0 CTOS
> 07 NTFS 42 LinuxSwap DR 81 Minix (new) C1 DRDOSs FAT12
> 08 AIX fs 43 Linux DR 82 Linux swap C4 DRDOSs 09 AIX/Coherent 4D QNX 4.2 Pri 83 Linux files* C6 DRDOSs >=32M
> 0A OS/2 Bootmgr 4E QNX 4.2 Sec 84 OS/2 hidden C7 HPFS Disbled
> 0B Win95 FAT-32 4F QNX 4.2 Ter 85 Linux ext. DB CPM/C.DOS/C*
> 0C Win95 FAT32L 50 DM 86 NT FAT VS DE Dell Maint
> 0E DOS FAT-16 51 DM 87 NTFS VS E1 SpeedStor
> 0F Extended LBA 52 CP/M or SysV 8E Linux LVM E3 SpeedStor
> 10 OPUS 53 DM 93 Amoeba FS E4 SpeedStor
> 11 OS/2 hidden 54 Ontrack 94 Amoeba BBT EB BeOS/i386
> 12 Compaq Diag. 55 EZ-Drive 99 Mylex EE EFI GPT
> 14 OS/2 hidden 56 Golden Bow 9F BSDI EF EFI Sys
> 16 OS/2 hidden 5C Priam A0 NotebookSave F1 SpeedStor
> 17 OS/2 hidden 61 SpeedStor A5 FreeBSD F2 DOS 3.3+ Sec
> 18 AST swap 63 ISC, HURD, * A6 OpenBSD F4 SpeedStor
> 19 Willowtech 64 NetWare 2.xx A7 NEXTSTEP FF Xenix BBT
> 1C ThinkPad Rec 65 NetWare 3.xx A8 MacOS X
The formatting may get mangled, it's a nice table 70 columns wide. If you're in OpenBSD's fdisk and you hit ? when it asks for partition type this is what you get. The types show when you're editing or listing the partition table.
Partition types on Wikipedia: https://en.wikipedia.org/wiki/Partition_type
answered Feb 22 '17 at 21:44
Alan Corey
493
edited Feb 22 '17 at 22:23
answered Feb 22 '17 at 21:44
Alan Corey
493
answered Feb 22 '17 at 21:44
Alan Corey
493
answered Feb 22 '17 at 21:44
Alan Corey
493
493
add a comment |
add a comment |
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2
Out of curiosity, what are you trying to test? Journal vs. no journal? For the record, you can operate ext4 in no-journal mode, and still benefit from all the other new features.
– zacharyalexstern
Jan 15 '13 at 15:36
unix.stackexchange.com/questions/34623/…
– Ciro Santilli 新疆改造中心 六四事件 法轮功
Sep 12 '15 at 10:32