[clue-tech] Unexpected Reboots

[David L. Anselmi]

William wrote:
> List,
> 
> One of my RHEL/CentOS servers appears to be restarting itself 
> unexpectedly.  This machine is an unattended server (there is no 
> workstation for someone to sit at) which runs 24/7.  After reviewing the 
> logs, I cannot identify any reason for this behavior.  In fact, the 
> whole reboot process looks clean (no errors, no corruption), as if 
> deliberate.

The only time I've seen this sort of thing is when the power fails.  But 
you've already ruled that out (or could it be that the box isn't really 
on the UPS, or on a flaky outlet/cord/whatever).

What do the filesystems say on reboot?  If it's really power loss or CPU 
overheating you should see a message that they aren't clean and either 
need fsck or journal recovery.  If they're always clean coming up it 
would mean they've been unmounted on shutdown.  Your auth.log or root's 
.bashrc might have some info about them being shutdown on purpose.

Dave
_______________________________________________
CLUE-tech mailing list
CLUE-tech at cluedenver.org
http://cluedenver.org/mailman/listinfo/clue-tech