Add poweroff to startup script
I want to add poweroff to startup script /etc/rc.local (Ubuntu). It sounds odd or silly, the reason is I want to tease my friend for few minutes. I didn't tried it up to now.
Question:
- Does the system really shutdown after startup?
- If above case is true, how to stop it?
- Is this really dangerous?
ubuntu startup
edited Dec 20 '18 at 0:16
Rui F Ribeiro
39k1479130
asked May 30 '14 at 9:32
gangadhars
3472921
add a comment |
I want to add poweroff to startup script /etc/rc.local (Ubuntu). It sounds odd or silly, the reason is I want to tease my friend for few minutes. I didn't tried it up to now.
Question:
- Does the system really shutdown after startup?
- If above case is true, how to stop it?
- Is this really dangerous?
ubuntu startup
edited Dec 20 '18 at 0:16
Rui F Ribeiro
39k1479130
asked May 30 '14 at 9:32
gangadhars
3472921
2
Pulling a prank is only funny if the person pranked upon can laugh about it. Just assuming that this works, if you or your friend do not know how to prevent the system from shutting down after the "novelty of the prank has faded", then you should not do this. In that case I would consider this dangerous, especially if your friend relies for work or other non-fun-only activities on his/her computer.
– Anthon
May 30 '14 at 10:15
Isn't there any other way to prank him? :P
– Amith KK
May 30 '14 at 13:28
Okay, I understand. I'm not going to do this.
– gangadhars
May 30 '14 at 13:30
add a comment |
I want to add poweroff to startup script /etc/rc.local (Ubuntu). It sounds odd or silly, the reason is I want to tease my friend for few minutes. I didn't tried it up to now.
Question:
- Does the system really shutdown after startup?
- If above case is true, how to stop it?
- Is this really dangerous?
ubuntu startup
edited Dec 20 '18 at 0:16
Rui F Ribeiro
39k1479130
asked May 30 '14 at 9:32
gangadhars
3472921
I want to add poweroff to startup script /etc/rc.local (Ubuntu). It sounds odd or silly, the reason is I want to tease my friend for few minutes. I didn't tried it up to now.
Question:
- Does the system really shutdown after startup?
- If above case is true, how to stop it?
- Is this really dangerous?
ubuntu startup
ubuntu startup
edited Dec 20 '18 at 0:16
Rui F Ribeiro
39k1479130
asked May 30 '14 at 9:32
gangadhars
3472921
edited Dec 20 '18 at 0:16
Rui F Ribeiro
39k1479130
asked May 30 '14 at 9:32
gangadhars
3472921
edited Dec 20 '18 at 0:16
Rui F Ribeiro
39k1479130
edited Dec 20 '18 at 0:16
Rui F Ribeiro
39k1479130
edited Dec 20 '18 at 0:16
Rui F Ribeiro
39k1479130
39k1479130
asked May 30 '14 at 9:32
gangadhars
3472921
asked May 30 '14 at 9:32
gangadhars
3472921
asked May 30 '14 at 9:32
gangadhars
3472921
3472921
2
Pulling a prank is only funny if the person pranked upon can laugh about it. Just assuming that this works, if you or your friend do not know how to prevent the system from shutting down after the "novelty of the prank has faded", then you should not do this. In that case I would consider this dangerous, especially if your friend relies for work or other non-fun-only activities on his/her computer.
– Anthon
May 30 '14 at 10:15
Isn't there any other way to prank him? :P
– Amith KK
May 30 '14 at 13:28
Okay, I understand. I'm not going to do this.
– gangadhars
May 30 '14 at 13:30
add a comment |
2
Pulling a prank is only funny if the person pranked upon can laugh about it. Just assuming that this works, if you or your friend do not know how to prevent the system from shutting down after the "novelty of the prank has faded", then you should not do this. In that case I would consider this dangerous, especially if your friend relies for work or other non-fun-only activities on his/her computer.
– Anthon
May 30 '14 at 10:15
Isn't there any other way to prank him? :P
– Amith KK
May 30 '14 at 13:28
Okay, I understand. I'm not going to do this.
– gangadhars
May 30 '14 at 13:30
2
2
Pulling a prank is only funny if the person pranked upon can laugh about it. Just assuming that this works, if you or your friend do not know how to prevent the system from shutting down after the "novelty of the prank has faded", then you should not do this. In that case I would consider this dangerous, especially if your friend relies for work or other non-fun-only activities on his/her computer.
– Anthon
May 30 '14 at 10:15
Pulling a prank is only funny if the person pranked upon can laugh about it. Just assuming that this works, if you or your friend do not know how to prevent the system from shutting down after the "novelty of the prank has faded", then you should not do this. In that case I would consider this dangerous, especially if your friend relies for work or other non-fun-only activities on his/her computer.
– Anthon
May 30 '14 at 10:15
Isn't there any other way to prank him? :P
– Amith KK
May 30 '14 at 13:28
Isn't there any other way to prank him? :P
– Amith KK
May 30 '14 at 13:28
Okay, I understand. I'm not going to do this.
– gangadhars
May 30 '14 at 13:30
Okay, I understand. I'm not going to do this.
– gangadhars
May 30 '14 at 13:30
add a comment |
2 Answers
2
active
oldest
votes
You can put a sleep command before poweroff.
For example:
sleep 300; poweroff
This way you will have 5 minutes before the poweroff. When you want to stop this, you can use these 5 minutes to login to the system and remove the poweroff command from the init script.
Another way would be to add init=/bin/sh to the kernel parameters upon booting (in the bootloader), when you want to stop this. Then only the kernel will be booted and no init scripts will be ran. You will endup in root shell. Since no scripts were ran you will need to remount your RootFS with RW, like this: mount -o remount,rw / then remove the init script, sync the FS and reboot.
I would use the first option, it's more safer if you don't know what to do.
answered May 30 '14 at 17:12
0xAF
1,01698
add a comment |
Strictly speaking, it will shutdown as part of the startup process. If there are services running on that box that don't like being forcibly shutdown while they're still starting up, it might be dangerous.
If you've successfully managed to insert an unguarded poweroff in the startup process, my "usual" way to fix it would be to boot into a live system from a rescue medium, mount the root partition, fix the startup script, remove all your files and access rights and think about a suitable punishment for you.
answered May 30 '14 at 12:41
Stefan Schmiedl
28113
add a comment |
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2 Answers
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active
oldest
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2 Answers
2
active
oldest
votes
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votes
You can put a sleep command before poweroff.
For example:
sleep 300; poweroff
This way you will have 5 minutes before the poweroff. When you want to stop this, you can use these 5 minutes to login to the system and remove the poweroff command from the init script.
Another way would be to add init=/bin/sh to the kernel parameters upon booting (in the bootloader), when you want to stop this. Then only the kernel will be booted and no init scripts will be ran. You will endup in root shell. Since no scripts were ran you will need to remount your RootFS with RW, like this: mount -o remount,rw / then remove the init script, sync the FS and reboot.
I would use the first option, it's more safer if you don't know what to do.
answered May 30 '14 at 17:12
0xAF
1,01698
add a comment |
You can put a sleep command before poweroff.
For example:
sleep 300; poweroff
This way you will have 5 minutes before the poweroff. When you want to stop this, you can use these 5 minutes to login to the system and remove the poweroff command from the init script.
Another way would be to add init=/bin/sh to the kernel parameters upon booting (in the bootloader), when you want to stop this. Then only the kernel will be booted and no init scripts will be ran. You will endup in root shell. Since no scripts were ran you will need to remount your RootFS with RW, like this: mount -o remount,rw / then remove the init script, sync the FS and reboot.
I would use the first option, it's more safer if you don't know what to do.
answered May 30 '14 at 17:12
0xAF
1,01698
add a comment |
You can put a sleep command before poweroff.
For example:
sleep 300; poweroff
This way you will have 5 minutes before the poweroff. When you want to stop this, you can use these 5 minutes to login to the system and remove the poweroff command from the init script.
Another way would be to add init=/bin/sh to the kernel parameters upon booting (in the bootloader), when you want to stop this. Then only the kernel will be booted and no init scripts will be ran. You will endup in root shell. Since no scripts were ran you will need to remount your RootFS with RW, like this: mount -o remount,rw / then remove the init script, sync the FS and reboot.
I would use the first option, it's more safer if you don't know what to do.
answered May 30 '14 at 17:12
0xAF
1,01698
You can put a sleep command before poweroff.
For example:
sleep 300; poweroff
This way you will have 5 minutes before the poweroff. When you want to stop this, you can use these 5 minutes to login to the system and remove the poweroff command from the init script.
Another way would be to add init=/bin/sh to the kernel parameters upon booting (in the bootloader), when you want to stop this. Then only the kernel will be booted and no init scripts will be ran. You will endup in root shell. Since no scripts were ran you will need to remount your RootFS with RW, like this: mount -o remount,rw / then remove the init script, sync the FS and reboot.
I would use the first option, it's more safer if you don't know what to do.
answered May 30 '14 at 17:12
0xAF
1,01698
answered May 30 '14 at 17:12
0xAF
1,01698
answered May 30 '14 at 17:12
0xAF
1,01698
answered May 30 '14 at 17:12
0xAF
1,01698
1,01698
add a comment |
add a comment |
Strictly speaking, it will shutdown as part of the startup process. If there are services running on that box that don't like being forcibly shutdown while they're still starting up, it might be dangerous.
If you've successfully managed to insert an unguarded poweroff in the startup process, my "usual" way to fix it would be to boot into a live system from a rescue medium, mount the root partition, fix the startup script, remove all your files and access rights and think about a suitable punishment for you.
answered May 30 '14 at 12:41
Stefan Schmiedl
28113
add a comment |
Strictly speaking, it will shutdown as part of the startup process. If there are services running on that box that don't like being forcibly shutdown while they're still starting up, it might be dangerous.
If you've successfully managed to insert an unguarded poweroff in the startup process, my "usual" way to fix it would be to boot into a live system from a rescue medium, mount the root partition, fix the startup script, remove all your files and access rights and think about a suitable punishment for you.
answered May 30 '14 at 12:41
Stefan Schmiedl
28113
add a comment |
Strictly speaking, it will shutdown as part of the startup process. If there are services running on that box that don't like being forcibly shutdown while they're still starting up, it might be dangerous.
If you've successfully managed to insert an unguarded poweroff in the startup process, my "usual" way to fix it would be to boot into a live system from a rescue medium, mount the root partition, fix the startup script, remove all your files and access rights and think about a suitable punishment for you.
answered May 30 '14 at 12:41
Stefan Schmiedl
28113
Strictly speaking, it will shutdown as part of the startup process. If there are services running on that box that don't like being forcibly shutdown while they're still starting up, it might be dangerous.
If you've successfully managed to insert an unguarded poweroff in the startup process, my "usual" way to fix it would be to boot into a live system from a rescue medium, mount the root partition, fix the startup script, remove all your files and access rights and think about a suitable punishment for you.
answered May 30 '14 at 12:41
Stefan Schmiedl
28113
answered May 30 '14 at 12:41
Stefan Schmiedl
28113
answered May 30 '14 at 12:41
Stefan Schmiedl
28113
answered May 30 '14 at 12:41
Stefan Schmiedl
28113
28113
add a comment |
add a comment |
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2
Pulling a prank is only funny if the person pranked upon can laugh about it. Just assuming that this works, if you or your friend do not know how to prevent the system from shutting down after the "novelty of the prank has faded", then you should not do this. In that case I would consider this dangerous, especially if your friend relies for work or other non-fun-only activities on his/her computer.
– Anthon
May 30 '14 at 10:15
Isn't there any other way to prank him? :P
– Amith KK
May 30 '14 at 13:28
Okay, I understand. I'm not going to do this.
– gangadhars
May 30 '14 at 13:30