topic Re: where's my kernel gone? in Operating System - HP-UX

where's my kernel gone?

Mark Henry_1 — Thu, 21 Mar 2002 16:21:43 GMT

Hi All,

Upon coming in one morning my hp11 visualize had crashed and burned..
A power cycle dropped me off at the ISL claiming it couldn't find the kernel! I've tried booting /stand/vmunix.prev also but no luck.
Firstly I'm wondering what could cause the kernel to get whacked on a single user system - probably a lot of things, but it's a fairly catastrophic failure.. also is it possible to get the system going again without having to reinstall?
Thanks,

Mark

Re: where's my kernel gone?

Kevin Wright — Thu, 21 Mar 2002 16:26:05 GMT

Do you have an ignite recovery tape? if not, and you don't have a bootable kernel, I think you better look for the latest cd's.

Re: where's my kernel gone?

Robert Gamble — Thu, 21 Mar 2002 16:26:06 GMT

Guess#1 - the root drive had a hardware error and is now unreadable

Guess#2 - /stand is corrupt

Good Luck!

Re: where's my kernel gone?

Bill McNAMARA_1 — Thu, 21 Mar 2002 16:31:38 GMT

try

BO PRI
interact > yes
ISL> hpux ll

have you got any files displayed - kernel ones have a * after them.

If none, rescue/ restore.
You've got a damaged /stand filesystem.

Boot from recovery cd and select place kernel file.

recover your other data in /home etc.. then reinstall

Later,
Bill

Re: where's my kernel gone?

pap — Thu, 21 Mar 2002 19:30:02 GMT

Hi ,
You can restore the ignite image back to the machine if you have created make_recovery tape.

You can also do following.

1. If you have similar spare machine, you can plug your root disk in to other machine and try to boot the system. IF it works then there is something regarding h/w problem.

-pap

Re: where's my kernel gone?

Mark Henry_1 — Thu, 21 Mar 2002 19:51:24 GMT

Guys,

I do indeed have a recovery tape - is it just a matter of copying the kernel from the tape over to /stand?

Mark

Re: where's my kernel gone?

Krishna Prasad — Thu, 21 Mar 2002 19:57:01 GMT

I agree with Robert. Sounds like the boot disk may have crashed.

Re: where's my kernel gone?

Roger Baptiste — Thu, 21 Mar 2002 20:35:30 GMT

hi,

make sure the hard disk is ok. You can boot from the support CD and then try mounting the disk filesystems. That will be confirm the disk integrity. If the disk itself is crashed, then you would need a replacement.

-raj