topic Re: saving root disk in Operating System - HP-UX

saving root disk

dave daniels_2 — Tue, 04 Dec 2001 21:30:30 GMT

It looks like I have corrupted my root disk. I was running an insf -e when my system locked up. It now panics with an lvm error looking for drivers. The drive is 11i based and of course I don't have it backed up. :-(

Is there a way I can mount the drive and make the necessary repairs.

Thanks for any help.

Dave

Re: saving root disk

Joseph C. Denman — Tue, 04 Dec 2001 21:34:46 GMT

Hi Dave,

You should be able to boot into single user mode and recreate the drivers.

boot sequence
boot pri
interact with IPL> Y
hpux -is

mount /usr
insf -e

reboot

#hope this helps

...jcd...

Re: saving root disk

Sanjay_6 — Tue, 04 Dec 2001 21:45:54 GMT

Hi Dave,

Try to reboot the system in single user mode and then if that works boot it in multiuser mode.

Here is a thread on how you can boot your system in single user mode,

http://us-support.external.hp.com/cki/bin/doc.pl/sid=f083da9914612b6ffb/screen=ckiDisplayDocument?docId=200000057790847

Hope this helps.

regds

Re: saving root disk

dave daniels_2 — Tue, 04 Dec 2001 21:58:12 GMT

I get the same error is single user mode.
Any other ideas. Is it possible to mount my boot drive off an external drive?

Re: saving root disk

Joseph C. Denman — Tue, 04 Dec 2001 22:10:42 GMT

Dave,

Can you post the messages from the panic??

That might help.

...jcd...

Re: saving root disk

Duncan Edmonstone — Tue, 04 Dec 2001 23:02:00 GMT

Why not try LVM maintenance mode - this doesn't use LVM at all...

just do the same as for single user mode, but try 'hpux -lm' instead of 'hpux -is'

Of course you can only mount root in this situation - I'm not at a machine now, so I can't remember whether insf is in /sbin

HTH

Duncan

Re: saving root disk

dave daniels_2 — Wed, 05 Dec 2001 13:34:23 GMT

no luck with the hpux -lm . It still panics
with " The device file /dev/rroot does not exist.

In the old days I use to be able to boot of another drive and mount the corrupt drive to restore any files. I have tried to mount the drive via SAM but it warns me that it will stomp all over the existing filesystem.

Thanks for any and all help.

-Dave

Re: saving root disk

Bill McNAMARA_1 — Wed, 05 Dec 2001 13:50:45 GMT

looks like there's a problem with /dev/

boot from a support cd, mount your root disk from the memory based os, then try to figure out what is wrong.

Later,
Bill

Re: saving root disk

dave daniels_2 — Wed, 05 Dec 2001 14:02:41 GMT

Any ideas on how I obtain a support CD?

Thanks,
Dave

Re: saving root disk

Alan Nicholson — Wed, 05 Dec 2001 16:12:50 GMT

Log a hardware call, then mug the engineer who arrives to fix it :)

Seriously, you should have received one with your system when it was delivered (it'll be in the big flat box). I think the support functionality may be on the Core OS/Install disk for 11i. Unfortunately I can't check this since our nearest 11i machine is 200 miles away.

Re: saving root disk

dave daniels_2 — Wed, 05 Dec 2001 17:33:34 GMT

I checked the 11i install CD and it was not obvious to me what I need to look for.
I did a lifls -l and it came back with:
ISL AUTO CONFIG INDEX HPUX INSTALL INSTALLFS
INSTALLFS VINSTALLFS WINSTALLFS VINSTALL WINSTALL INSTCMDS RECCMDS SYSCMNDS SCRIPTS

????

Re: saving root disk

Amit Tank — Wed, 10 Dec 2003 04:05:30 GMT

Dave,

Were you able to get rid of /dev/rroot not
exists problem ?
I am having exactly the same problem. Any solution?

Thanks,
Amit Tank