restore /usr

[David DiBiase]

I have been asked to restore /usr on a k570
At some point /usr/was moved from vg00 to vg06
the disk where vg06 resided was trashed.

any ideas would be most appreciated.

Thanks

[RickT_1]

David,

Do you have another disk that you can replace the trashed disk with or another disk where you can create a new /usr?

Rick

[Bill Hassell · Accepted solution]

/usr is of course a critical system resource, and all the HP-UX backup tools are located in that directory. Now if you have not rebooted, don't reboot!! Most of the existing kernel processes will continue to run without /usr. Make sure you have one or more root user logins active. Make sure the value for the shell timeout ($TMOUT) does not exist or set it to TMOUT=0.

Now you need to find a source for /usr that matches your current system. Note that there may be patches that will be different on different systems and critical libraries (/usr/lib) may not quite match. If you have a tar backup of this machine that includes /usr, use the tar command found in /sbin to restore /usr. Otherwise, you can restore from another similar HP-UX system. However, the /usr from another system may be a checkerboard of files with different versions, so you may need to reinstall all patches on the system for stability.

Otherwise, you'll have to reinstall.

[David DiBiase]

New disk installed
need to restore the volume group next (?)
I am told we have some 'sort of' recent tar tapes - searching through boxes