topic Re: Machine not rebooting in Operating System - HP-UX

Machine not rebooting

Prasad Joshi — Thu, 06 Apr 2006 08:39:39 GMT

I am giving a reboot command to a machine but, still the machine is not rebooting.

Can anyone say why this is happening?

Thanks in advance
Prasad

Re: Machine not rebooting

Prasad Joshi — Thu, 06 Apr 2006 08:42:11 GMT

I need to give init 6 command to reboot the machine.

I am not getting why reboot command itself is not working

Thanks & regards,
Prasad

Re: Machine not rebooting

Rick Garland — Thu, 06 Apr 2006 08:43:59 GMT

Need some more information. What version of OS? Any error messages? Any messages at all? What does syslog say? Did you do a "ps" command to verify it is there? What command did you actually type? etc...

Re: Machine not rebooting

Prasad Joshi — Thu, 06 Apr 2006 08:51:03 GMT

Thanks a lot for instant replay.

OS is B.11.23

No error message is displayed

syslogd was in running state even after giving reboot command

i just gave reboot command "reboot"

Thanks a lot.
Prasad

Re: Machine not rebooting

Jannik — Thu, 06 Apr 2006 09:00:08 GMT

does it begine the boot in the VFP? You can look at this from the console.
does it begine the boot in the CO (console) from the GSP/MP?

If it dies in the VFP (intial boot - you would know :-) ).

So maybe it you autoboot option, do you end up in something like:
menu >

Re: Machine not rebooting

Pete Randall — Thu, 06 Apr 2006 09:01:50 GMT

According to the man page

"When invoked without arguments, reboot syncs all disks before rebooting the system."

Is it possible that you simply needed to wait a while longer for the disks to resync? Normally the command would be invoked as "reboot -[h|r] 0"

By the way, it is customary to do a graceful shutdown using the "shutdown" command rather than using "reboot". The shutdown command goes through all the /sbin/init.d stop scripts and shuts processes down gracefully. The reboot command does not and this could prove harmful to some applications.

Pete

Re: Machine not rebooting

Arunvijai_4 — Thu, 06 Apr 2006 09:03:15 GMT

Hi Prasad,

You can check /etc/shutdownlog to see what happenes there.

-Arun

Re: Machine not rebooting

Jannik — Thu, 06 Apr 2006 09:04:24 GMT

reboot -q

-q
Quick and quiet. Suppress broadcast of warning messages, terminate processes by brute force with SIGKILL) and immediately call reboot with arguments as indicated by the other options see
reboot(2)).

You may have some IO or proccess running.

User:
shutdown -ry 0
or
shutdown -hy 0

Re: Machine not rebooting

Rick Garland — Thu, 06 Apr 2006 09:54:17 GMT

There is the /etc/rc.log file as well. This will keep track of the progress of shutdown/startups.

You may be able to look into this file and see if it could be hanging on trying to bring down an application.

Re: Machine not rebooting

Kent Ostby — Thu, 06 Apr 2006 10:31:54 GMT

prasad --

does the machine go down, but not come back up?

does it stay up?

If it just stays up, then look at /var/adm/syslog/syslog.log and see if there are any error messages there.

Also, type:

whence reboot

This will show you what reboot command you are running. Try using the full path:

/sbin/reboot

Re: Machine not rebooting

Andrew Rutter — Thu, 06 Apr 2006 12:42:37 GMT

hi,

HP recommends not actually using the reboot command anymore, use shutdown commands instead.

however it should still work.

check if you have this reboot patch installed
PHCO_32426
s700_800 11.23 reboot(1M) cumulative patch

available here
https://www4.itrc.hp.com/service/patch/patchDetail.do?BC=patch.breadcrumb.main|patch.breadcrumb.search|&patchid=PHCO_32426&context=hpux:800:11:23

Andy

Re: Machine not rebooting

Prasad Joshi — Thu, 06 Apr 2006 23:35:57 GMT

Thanks a lot for help.
Regards.
Prasad