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SubjectRe: Forcing an immediate reboot
On 10/15/05, Willy Tarreau <> wrote:
> On Fri, Oct 14, 2005 at 06:46:46PM -0700, Marc Perkel wrote:
> > Is there any way to force an immediate reboot as if to push the reset
> > button in software? Got a remote server that i need to reboot and
> > shutdown isn't working.
> If you can telnet it, simply use this :
> # echo 1 >/proc/sys/kernel/sysrq
> # echo b >/proc/sysrq-trigger
> It's dirty and you'll have an fsck. But it will nearly always work.

You may avoid the fsck by:

# echo s >/proc/sysrq-trigger
# echo u >/proc/sysrq-trigger

> I use it a lot in local on distros on which the shutdown process is
> as long as the boot process (you know, the ones which display lots
> of 'OK' or wait indefinitely for some dead services to stop, when
> you really want them to reboot quickly).
Coywolf Qi Hunt
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