Re: Forcing an immediate reboot

[Coywolf Qi Hunt]

On 10/15/05, Anton Altaparmakov <aia21@xxxxxxxxx> wrote:
> On Fri, 14 Oct 2005, Lee Revell wrote:
> > On Fri, 2005-10-14 at 18:46 -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 it has Oopsed, and the "reboot" command does not work, then all bets
> > are off - kernel memory has probably been corrupted.
> >
> > Get one of those powerstrips that you can telnet into and power cycle
> > things remotely.
>
> If it has sysrq compiled in as root just do:
>
> echo s > /proc/sysrq-trigger
> echo u > /proc/sysre-trigger
> echo s > /proc/sysrq-trigger

What the purpose of the second sync?

> echo b > /proc/sysrq-trigger
>
> This will "sync", "umount/remount read-only", "sync", "immediate hardware
> reboot".  Should always work...
--
Coywolf Qi Hunt
http://sosdg.org/~coywolf/
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