#sysrq

[derwhity-blog1]

Most linux distributions use some type of mechanism to gracefully stop daemons and unmount storage volumes during a reboot or shutdown. It’s most commonly done via scripts that will wait for each daemon to shut down gracefully before proceeding to the next daemon. As we know, sometimes servers misbehave due to things put them through, …

Didn’t know this until now: When everything else fails and you have no way to reset your linux server, as last resort a SysRq key press can be emulated to force a reboot:

echo 1 > /proc/sys/kernel/sysrq echo b > /proc/sysrq-trigger

Feels a little bit like stabbing your server in the back.

[friendbg]

Linux reboot the magic way

Чували ли сте за Linux reboot the magic way ? Ако не сте имали счупен диск на линукс сървър вероятно не. Днес на мен ми се случи именно този проблем : jupiter:~# w Segmentation fault jupiter:~# reboot -bash: /sbin/reboot: Input/output error jupiter:~# shutdown -rF now -bash: /sbin/shutdown: Input/output error jupiter:~# Проблема е от счупеният диск на сървъра и невазможността да изпълня командите…

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[ushf]

sysrq

Previously I used to use the PrtScr/SysRq key on an earlier keyboard, with "Alt+SysRq+command-key", but this key seems to have disappeared on some of my keyboards.

Looking at LinuxJournal they simply recommend enabling it through:

echo 1 > /proc/sys/kernel/sysrq

and then reboot with:

echo b > /proc/sysrq-trigger

And this is backed-up by the sysrq.txt.

[stackcopybiz]

Resolved: Shut down computer from keyboard #computers #development #it

Resolved: Shut down computer from keyboard #computers #development #it

Shut down computer from keyboard

Is there a keyboard shortcut available to shutdown the computer?

I know I can use the Power button, but I would like to be able to it from the keyboard.

If such a shortcut does not exist already, how do I set one?

Answer [by andybleaden]: Shut down computer from keyboard

Well an easy one to try is to open the keyboard shortcuts.

If using unity press window…

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