topic Re: Reboot command in Operating System - HP-UX

Reboot command

Tim O'Connell — Mon, 28 Jul 2008 07:30:21 GMT

Hi,

I haven't rebooted my RP5430 HPUX server for about 3 years. I went to shut it down today to connect up a new tape drive & it kept rebooting. It never shutdown . I used the command I had in my notes - shutdown -h 0 . Is there something I have left out?.

Thanks,

Tim

Re: Reboot command

Oviwan — Mon, 28 Jul 2008 07:34:49 GMT

hey

shutdown:
shutdown -h 0

reboot:
shutdown -r 0

Regards

Re: Reboot command

SUDHAKAR_18 — Mon, 28 Jul 2008 07:35:32 GMT

Hello,
#shutdown -hy 0 -->for shutdown
#shutdown -ry 0 -->for reboot

what is the exact problem?

Re: Reboot command

Kenan Erdey — Mon, 28 Jul 2008 07:43:36 GMT

Hi,

iif it waits to kill some process/service try break key to interrupt in console.

Kenan.

Re: Reboot command

Tim O'Connell — Mon, 28 Jul 2008 07:56:24 GMT

Hi,

Thanks for the replies.

I used shutdown -h 0 but the server just rebooted & came back up.
Would shutdown -hy 0 have shut it down completely?

Thanks,

Tim

Re: Reboot command

Jeeshan — Mon, 28 Jul 2008 08:54:14 GMT

yeah "shutdown -hy 0" will halt down your systems. If you want to completely power off the server then you need to down the power from MP/GSP console.

Re: Reboot command

Pete Randall — Mon, 28 Jul 2008 08:57:00 GMT

Tim,

No, adding the y switch causes an automatic "yes" response for any interactive input during the shutdown. It would have no effect on whether the machine reboots or not - that is strictly controlled by the -h vs the -r switch.

I would think there must be some sort of message indicating why the machine is rebooting. Perhaps it has a problem during shutdown and the failure causes a reboot? Study the output from the shutdown process carefully and see if there isn't some indication of why this is happening.

Pete

Re: Reboot command

Paul McCleary — Mon, 28 Jul 2008 09:18:44 GMT

Hi Tim,

I normally always use:

shutdown -yh 0

Which is a shutdown halt (-h) with no grace period and answering yes (-y) to any interactive questions from the shutdown process.

Your system should have been halting. What output is on the console during the shutdown, especially the point where it starts to then boot again?

Paul

Re: Reboot command

Tim O'Connell — Mon, 28 Jul 2008 10:27:28 GMT

I don't have the output now but I will need to shutdown the server again as the tape drive wasn't picked up & will keep an eye on it. On older Unix servers there used to be a /var/log/console - is there similar on HPUX?

Thanks,

Tim

Re: Reboot command

Dennis Handly — Mon, 28 Jul 2008 10:49:12 GMT

>there used to be a /var/log/console - is there similar on HP-UX?

No. But sometimes the MP/GSP console logs may have 100s of lines.

Have you looked at syslog and /etc/shutdownlog?

Re: Reboot command

Tim O'Connell — Mon, 28 Jul 2008 12:06:19 GMT

Poinst assigned. Nothing in the logs so will wait until I can shut it down again.

Many Thanks,

Tim

Re: Reboot command

Cem Tugrul — Mon, 28 Jul 2008 12:43:31 GMT

Hello,
just as addition to other replies;
rp5430 as mine also has console(GSP)
if u want to power down your system for a reason (after shudown -hy 0) then u may use
PS command from the this console...

Good Luck,

Re: Reboot command

Pete Randall — Mon, 28 Jul 2008 12:50:32 GMT

> Have you looked at syslog and /etc/shutdownlog?

That should probably be OLDsyslog by the way.

Pete

Re: Reboot command

Tim O'Connell — Mon, 28 Jul 2008 13:41:22 GMT

Had a look but nothing of use there

Re: Reboot command

Cem Tugrul — Tue, 29 Jul 2008 07:06:21 GMT

What about /etc/rc.log ?

Re: Reboot command

Steven E. Protter — Tue, 29 Jul 2008 07:12:25 GMT

Shalom Tim,

I'll state the obvious here.

Leaving a system running for three years without even a patch installation is not a good systems administration practice.

Something has been changed, it could have happened any time in the past three years and you have no clue what triggered the problem.

In this situation, I'd start now and work backward.

You attached a tape drive. Check that the SCSI ID configuration is okay and that the drive is properly terminated. Ultrium drives are self terminating and will react badly to terminators.

Know your hardware and act accordingly.

The drive itself could be the source of the problem and you may wish to pull it and see if the system stabilizes.

It would not hurt once the system is running to install the latest bi-annual update and HWE, hardware enablement patches. I doubt they will solve this problem, but they won't hurt.

SEP

Re: Reboot command

Tim O'Connell — Tue, 29 Jul 2008 07:17:47 GMT

Thanks, Stephen.

Issue happened when I shutdown the server prior to connect the tape drive. Agree with you on the patches etc but that's another story.

Thanks,

Tim

Re: Reboot command

Tim O'Connell — Tue, 29 Jul 2008 07:18:25 GMT

Will investigate the next time I can shut down the server.

Thanks,

Tim