HP10.20C reboot

[Vicki Webb]

Our HP 10.20C unix box rebooted today for an unknown reason. I looked at syslog and OLDsyslog and neither shows a halt or a shutdown. /var/adm/crash is also empty. rc.log and OLDrc.log don't show any errors either. Is there somewhere else I can look to see why they system would have rebooted itself?

[A. Clay Stephenson]

Look in /etc/shutdownlog.

[Geoff Wild]

What does "last" show?

and again look in /etc/shutdown.log

Rgds...Geoff

[Peter Nikitka]

Hi,

look for users with shutdown permissons in
/etc/shutdown.allow

mfG Peter

[Piotr Zajaczkowski]

Hi,

Have a look in /var/tombstones and search for new files with name ts99 or ts98, just to be sure if it was not a HW failure.

Regards,
Piotr

[Hoang Chi Cong_1]

Hi.
Rarely but sometime it causes by over temperature.
Check the environment.


Regard,

[Stuart Whitby]

Run a grep on users' history files and look for kill commands, and check for any su's to root soon before the shutdown.

One of my first real screwups as a sysadmin was to on a really insecure box with no root password. Spot the deliberate mistake...

su -john
killall

Took me a while to figure out how I could have killed the entire system by running that as john.... :o

[Cheryl Griffin]

Check the syslog.log for SCSI or IO errors and diagnostics as well. If you can find no other signs as to why the system paniced, it's likely a hardware failure.