topic Re: files missing in /usr/lib in Operating System - HP-UX

files missing in /usr/lib

Rajasekhar Raman — Fri, 19 Jan 2007 10:53:53 GMT

We had an issue with our RAID system and the server hung. I had to reboot the box while it was in the middle of several transactions. The box rebooted without any obvious problems. But once it came back up, I could not "vi" or execute a number of other commands. It complained about several libxxx.so.x files not being found. Upon investigation and comparing with another identically configured system (rx2620 , HPUX 11.23, March 2006 Patchset), I found that a number of files in the /usr/lib directory were missing.

Any way to recovery??

Re: files missing in /usr/lib

Patrick Wallek — Fri, 19 Jan 2007 10:59:20 GMT

What type of backup system do you have? Have you tried restoring?

IF you can figure out what you need, you MIGHT be able to copy from your other machine.

If the normal commands don't work, see if an equivalent command exists in the /sbin/ directory. /sbin/ contains commands that are statically linked which means they don't need the /usr/lib libraries.

Re: files missing in /usr/lib

Tim Nelson — Fri, 19 Jan 2007 14:51:33 GMT

Is /usr mounted ?

sounds like the server hung because someone did an rm -r *

Re: files missing in /usr/lib

Rajasekhar Raman — Fri, 19 Jan 2007 15:07:47 GMT

I did copy the /usr/lib contents from another identically configured machine. Seems to have fixed the problems the users were having, however in doing so I copied the files instead of the symbolic links and have wound up with a bulkier /usr filesystem.

I wonder if this is the best way, or should I have restored from a backup (Legato, this system is backed up daily) ?

-Shekar

Re: files missing in /usr/lib

James R. Ferguson — Fri, 19 Jan 2007 15:10:58 GMT

Hi:

I would have restored your missing files from backup instead of copying them from a similar system. In that way, you are assured of getting the correct, identical versions of what you removed. Your "identical" server could conceiveably have different file versions if its patch state differs.

Regards!

...JRF...

Re: files missing in /usr/lib

Rajasekhar Raman — Fri, 19 Jan 2007 15:15:29 GMT

Fortunately in this case, both servers were installed just 50 days ago, and both went into use on exactly the same day. So I guess I got lucky this time.

Secondly, restoring from tape involves requesting the tape that has already gone off site. As a fall back, I have requested the backup tape which I shall re-restore the files from in case users report any errors.

Thanks for your help.

-Shekar

Re: files missing in /usr/lib

Rajasekhar Raman — Fri, 19 Jan 2007 15:16:32 GMT

Thanks everyone for your prompt responses

Re: files missing in /usr/lib

Dennis Handly — Sat, 20 Jan 2007 06:01:13 GMT

If you do a swverify of your whole system, it should tell you which files should have been symbolic links.