Kernel symbol table verification failed

[Mazen Al-Jarrah]

Hi everyone,
I'm getting the following message in the syslog file how can I get ride of it

Thanks

[Steven E. Protter]

Shalom,

Means critical files in the /stand filesystem are missing or corrupted. They can be corrupted by many causes including double installing certain critical patches.

For detailed help.

Please state your OS version and procedure for your last kernel change, patch or define the procedure you used.

Have a backkup handy, your system may be unbootable.

SEP

[Albert_31]

try to manually rebuild the kernal and you might come to know what the exact error is

[Mazen Al-Jarrah]

# uname -a
HP-UX ws116h58 B.11.00 A 9000/785 2007039740 two-user license

I noticed that there are no files under /stand only a files called ioconfig

but I'm able to reboot the system without any problem

how can I rebuild the kernel manually..?

[Albert_31]

First of all, it is very strange.. how the system is able to boot if the /stand/vmunix file is not present in the /stand directory...

Anyways to rebuild a kernel..the steps are given below..

# cd /stand/build
# /usr/lbin/sysadm/system_prep -v -s system
# mk_kernel -s system
# Move the old system file to a backup location:
# mv /stand/system /stand/system.prev
# mv /stand/build/system /stand/system
# /usr/sbin/kmupdate /stand/build/vmunix_test

# Reboot the system using the shutdown command (not reboot).

regards

albert

[Mazen Al-Jarrah]

I want to confirm that I can reboot the system witihout any problem.

I'm not able to exeucte any of the commands given becuase the /stand/build doesnot exist:

# cd /stand/build
sh: /stand/build: not found.
# /usr/lbin/sysadm/system_prep -v -s system
ERROR: Cannot find a kernel file at /stand/vmunix
Usage: system_prep [-v] [-k ] [-s ]
# mk_kernel -s system
ERROR: Cannot find file "system".
This file is necessary in order to build a kernel.
Usage: mk_kernel [-o path_name] [-s system_file] [-S] [-v]
mk_kernel -M module_name [[-M module_name]..] [-v]
#
pleae advice

[Albert_31]

i am afraid..that there is nothing much that we can do now, you need to restore the contents of the /stand directory from a good known backup...

you have mentioned that you are able to reboot the machine earlier..

Without the /stand/vmunix file..the system wont boot so dont try to reboot..

[Mridul Shrivastava]

May I have the Os version running on the server. I guess it's 11.23.
If it is 11.23 then try kctune to rebuild kernel.

[Mridul Shrivastava]

If this is not the case then I would suggest you to copy /stand/build from another server and then try rebuilding kernel.
Make sure that other server's OS version is same.

[Mazen Al-Jarrah]

I'll try to copy the files from a similar system

[Mazen Al-Jarrah]

for one reason or another, lvol1 and lvol2 are not shown when I do bdf, but after reboot I could see them and I could find all the files under /stand/build.

so I managed to rebuild the kernal and everything looks fine

thanks for your help

[Mazen Al-Jarrah]

I have to rebuild the kenral manualy