unbootable HPUX 10.20

[Ivan Altaparmakov]

one HPUX 10.20 System
has crashed and currently it is unable
to boot
I had ran a recovery script
from support media
but unfortunately there was not
any healthy back up files
and when i restored files from
BK
system did not start.

Is there way to recover
system with minimal efforts and
minimal loss of information ?

Thanks

[Paula J Frazer-Campbell]

Hi Ivan
Have you tried booting from vmunix.prev?


Paula

[Wodisch]

in single-user mode?

ISL> hpux -is

[Vincent Farrugia]

Hello,

If all of the above suggestions do not work, try to boot in maintenance mode:

ISL> hpux -lm

If it works, try to acitvate the root volume group using vgchange -a y vg00 to update the LABEL file using lvlnboot command. If this fails, try to recover the volume group information using vgcfgrestore command.

HTH,
Vince

[John Bolene]

I recover with my ignite backups.

Any backup is better than no backup.

[Ivan Altaparmakov]

the system was a result of upgrade of hpux9.05
to hpux 10.20
it is not using LVM
and ISL>hpux -lm isn't working
so as ISL>hpux vmlinux.prev
because it is inposslible to type
more than 10 sharacters
only ISL> hpux -is is working
but i did'n know what to do then
for example ls command
was giving error
" unable to load dld.so " and some
numbers of error codes

so i decided to start recovery scrtypt
and completin all instructions
the result was the same as before

I think
there are so nice peole in this forum.
thanks for yor help

[Volker Borowski]

Hmm,

vmlinux.prev is quit an unusual kernel name for an HP System! Was that only a typo in this post or did you really try that ? In this case try vmunix.prev instead.

Hope this helps
Volker

[John Bolene]

I have to remark about this, sorry.

The transition from UX 9 to UX 10 is best done with a total reload from CD. The 9 - 10 upgrade does nothing about LVM as you found. LVM is the best reason to get to 10, along with HP support (which will be going away soon on 10 anyway).

My other suggestion on ignite would have done you no good, since you were going between levels. Most times, giving more information is better than giving less.

[fg_1]

Ivan

It is best to do a cold load of the system, save off any directories/files that you want to keep onto a tar tape then load your system from scratch.

Everyone is correct that the upgrade path from 9.X to 10.20 is best accomplished this way.

What is the primary reasoning for going to 10.20 and not 11.00, is it application version or database version incompatability?

Good luck

Happy new year.

[Patrick Wessel · Accepted solution]

Ivan,
Looks like your dld.sl is missing. That mean, you are not able to use any command that uses shared libraries (for more information take a look into the man page of dld.sl)
If you are able to boot your system in single user mode and dld.sl is missing, you are still able to use the commands in the /sbin directory. (use /sbin/ls instead of ls)
Boot your system into single user mode and try to figure out what happened to your dld.sl (maybe the execution permissions are missing or it has been moved to an other name) Maybe you are able to restore it from backup. Usually it's /usr/lib/dld.sl