topic Re: Automount issues in Operating System - HP-UX

Automount issues

dictum9 — Wed, 30 Sep 2009 20:16:34 GMT

Have a 11.23 box and cannot figure out these automount files. Looks like /net/loopback and /net/localhost are mounted on /

Any purpose this could serve?

Is it possible to just unmount them? fuser suggests that no processes are using these directories.

bdf /net/localhost /net/loopback
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol3 1024000 233600 784256 23% /
/dev/vg00/lvol3 1024000 233600 784256 23% /

Re: Automount issues

Steven Schweda — Wed, 30 Sep 2009 22:14:52 GMT

Lacking significant psychic powers, I can't
see what your automount maps look like, but
I'd guess that if "/net//" gets you
"/" on , then "/net/loopback/" and
"/net/localhost/" would get you your own "/".

If no one is using them, then I'd expect the
automounter to dismount them eventually.

Why do you care? What's the harm?

> Any purpose this could serve?

Perhaps some process asked for access to a
file like "/net/localhost/fred" (instead of
plain-old "/fred"), and the automounter took
it seriously.

I don't have an HP-UX system up at the
moment, but on a Solaris system, a command
like "ls -l /net/localhost/dev" got me this:

sol# mount | grep '/net/'
/net/localhost on / read/write/nosetuid/nodevices/dev=800000 on Wed Sep 30 18:12:56 2009

I'm guessing that it'll go away in time.

Re: Automount issues

Steven Schweda — Wed, 30 Sep 2009 23:04:54 GMT

Yup. It's gone.

sol# mount | grep '/net/'
sol#

If your automounts don't disappear, perhaps
it's because someone keeps using them. Or
your configuration specifies a (very) long
dismount time-out.

Re: Automount issues

Ajay Jay — Thu, 01 Oct 2009 10:00:27 GMT

Hi,

From your bdf output I understand that /net/localhost and /net/loopback are just a directory under root and it is not mounted.

If you use bdf on a directory it will shows to which filsystem it belongs to.

Regards
Ajay

Re: Automount issues

Steven E. Protter — Thu, 01 Oct 2009 12:27:05 GMT

Shalom,

Check that the following are configured and running:

/sbin/init.d/nfs.core
/sbin/init.d/nfs.server
/sbin/init.d/nfs.client

Please provide copies of auto_master and other files and error output from /var/adm/syslog/syslog.log

SEP