Cfrtjryk

Read my story below.

I'm using LVM2 with following information:

Scan for VG:

# vgs

  VG   #PV #LV #SN Attr   VSize   VFree 

  unix   1   1   0 wz--n- 115.00g 45.00g

Scan for LV

# lvs

  LV   VG   Attr   LSize  Origin Snap%  Move Log Copy%  Convert

  work unix -wi-s- 70.00g

Attempt to activate VG, LV

# vgchange -ay

  device-mapper: resume ioctl failed: Invalid argument

  Unable to resume unix-work (254:1)

  1 logical volume(s) in volume group "unix" now active

Check LV activated or not

# lvdisplay 

  /dev/mapper/unix-work: open failed: No such file or directory

  --- Logical volume ---

  LV Name                /dev/unix/work

  VG Name                unix

  LV UUID                HzzTTr-rX2d-w1dP-NEQL-QksJ-rmHW-jMTxO7

  LV Write Access        read/write

  LV Status              NOT available

  LV Size                70.00 GiB

  Current LE             17920

  Segments               2

  Allocation             inherit

  Read ahead sectors     auto

Because of last command end with error: "/dev/mapper/unix-work: open failed: No such file or directory"
Then I have to run vgmknodes to manual create /dev/ nodes as below

# vgmknodes 

  The link /dev/unix/work should had been created by udev but it was not found. Falling back to direct link creation.

Now it look like better with status "suspended"

# lvdisplay 

  --- Logical volume ---

  LV Name                /dev/unix/work

  VG Name                unix

  LV UUID                HzzTTr-rX2d-w1dP-NEQL-QksJ-rmHW-jMTxO7

  LV Write Access        read/write

  LV Status              suspended

  # open                 0

  LV Size                70.00 GiB

  Current LE             17920

  Segments               2

  Allocation             inherit

  Read ahead sectors     auto

  - currently set to     256

  Block device           254:1

Attempt to mount LV:

# mount /dev/unix/work /mnt/

mount: /dev/mapper/unix-work already mounted or /mnt/ busy

Message from dmesg:

[ 1527.566964] device-mapper: table: 254:1: sda3 too small for target: start=94372224, len=136306688, dev_size=224606491

So, my question is: how can I wake up LV to mount it or use dd command to get data from LVM partition?

Thanks in advanced!

I think it is related to this post https://superuser.com/questions/1061454/how-to-resize-back-a-logical-volumen-lvm/1061548

As suggested by the psusi comment, the PV on /dev/sda3 seems to be smaller than the VG size (perhaps a pvresize --setphysicalvolumesize somesizeG was done at a time)

2 solutions :
- extend the /dev/sda3
- reduce the unix-work LV

But need the pvdisplay and /dev/sda3 infos