topic Re: reboot failed in Operating System - HP-UX

reboot failed

Lynn Hsu_2 — Thu, 01 Jun 2006 21:44:53 GMT

Hi,

I have a problem here, hope you can lend a hand to help…

I have a L3000 server running 11.11. Today, I disconnected a external tape drive (SCSI) from it. The system was running fine.
When I reconnected the SCSI tape drive back to the machine, it got hung. I cycled power. It went to alloc_PDC_pages: relocating PDC from 0xffff800000 to 0x7fa00000

this took several minutes, then got “system alert” msg on the console with alert level = 12 software failure.

At some point, I saw this msg: “system crashed before I/O dump configuration was complete. reboot failed. Contact your
HP rep”.

Also, saw this msg many time druning the
reboot cycle:
processor display_activity() update 1F00

Then it goes to a loop trying to boot again …

I tried boot from alternate path, it failed with same msg. I tried to boot into single user mode, failed…

Any clue how to fix this?

Thanks in advance,

Lynn

Re: reboot failed

Arunkumar.B — Thu, 01 Jun 2006 22:21:08 GMT

Hi Lynn,

Try to boot by disconnecting the external tape drive.

With Cheers
Arunkumar.B

Re: reboot failed

A. Clay Stephenson — Thu, 01 Jun 2006 22:24:31 GMT

When you removed the external tape drive did you remember to terminate the bus?

Re: reboot failed

Michael Steele_2 — Thu, 01 Jun 2006 22:30:07 GMT

Found a thread that seems to hit the mark.

http://forums1.itrc.hp.com/service/forums/bizsupport/questionanswer.do?threadId=249248

Re: reboot failed

F Verschuren — Fri, 02 Jun 2006 03:53:13 GMT

please check the hartware paht of the tape unit... if it is conecten on the same bus as the rootdisk this could gve a problem,

alsow it coult be a cable/terminator prolem, to prevent thes remove the tapeunit and plaese only a terminator....

good luck..

Re: reboot failed

MarkSyder — Fri, 02 Jun 2006 04:14:15 GMT

Did you connect and disconnect the tape drive with the system turned on? Tape drives tend not to be hot swappable, so some damage may have occurred. Back in the days when I worked on AIX systems, it was quite common for discs to become corrupt when people connected/disconnected tape drives with the system running.

As already advised, remove the tape drive and terminate the SCSI bus. Boot the system and see if it comes up normally.

Mark Syder (like the drink but spelt different)

Re: reboot failed

Albert_31 — Fri, 02 Jun 2006 05:51:27 GMT

If the issue is still persisting..on a system reboot..when you notice the gsp message ...immediately press teh "x" key, so that we can see the exact console messages during the system panic..

post the console output and we can see how we can assist you..

regards

albert

Re: reboot failed

Lynn Hsu_2 — Fri, 02 Jun 2006 18:51:03 GMT

Thanks everyone! The problem got fixed by
reseting GSP (had to open the side panel and
press the buttom).

Thanks for Michael Steel's link. It solved
my problem.

Lynn

Re: reboot failed

Lynn Hsu_2 — Fri, 02 Jun 2006 18:52:44 GMT

Got valuable input from the people. Problem
solved!