topic Re: automounter problem in Operating System - HP-UX

automounter problem

Dan Alexander — Thu, 12 Dec 2002 19:29:48 GMT

We use NIS to automount home directories, and every once in a while, the mounts get hung. problem is, I CANNOT umount manually the /home/user dir, and remount. When I do try umount, umount comes back with a " Block device required" error. It seems the only way to fix this is to reboot, which is not an option in the middle of the day! Is there a way to manually FORCE this to be unmounted? Any help would greatly appreciated...

Re: automounter problem

Paul Sperry — Thu, 12 Dec 2002 20:40:28 GMT

Double check your
/etc/mnttab
/etc/nsswitch.conf

files

Re: automounter problem

Paul Sperry — Thu, 12 Dec 2002 21:06:20 GMT

Also depending on your OS 10.x or 11.x
are your patches up to date.
see PHNE_22288

Re: automounter problem

Dan Alexander — Thu, 12 Dec 2002 21:13:43 GMT

Thanks Paul...

The files seem to be fine.

It's running 11.11 with an older patch bundle...i'll patch it up...see what happens..

It looks like there is no way but a reboot to fix however...

Re: automounter problem

Paul Sperry — Thu, 12 Dec 2002 21:28:45 GMT

Take a look at PHNE_26388

Re: automounter problem

Judy Traynor — Fri, 13 Dec 2002 16:16:58 GMT

Dan
Can you post what you have as values in the following files please?

/etc/resolv.conf
/etc/nsswitch.conf
/etc/rc.config.d/nfs.conf
/etc/auto.home (auto_home -whatever you called it)
and the contents of your other automounted file systems from the nis server.

also - have you done a fuser on the filesystem that you cannot unmount?

Have you modified any values in your nfsconf file, etc.

Without that info - here is my guess - other than patches -
you need to bump the values in nfsconf of num_nfsd and num_nfsiod -
(multiply them by 4) - that should be a good start.

Also, make sure the clients can resolve the host name of the nis server to the inteface for the subnet they are on (assuming multi nic server)

Re: automounter problem

Dan Alexander — Fri, 13 Dec 2002 18:59:18 GMT

Monica,

thanks for the reply. I attached the nsswitch, auto_master, and nfsconf. the resolv.conf file is fine. we have no problem resolving anything...