mount --move in fedora 18

Norman Gaywood ngaywood at
Fri Mar 1 05:29:22 UTC 2013

When using fedora and ltspfs, ltsp clients want to fuse mount their USB
drives onto the system into the /media directory. This mostly works except
for the last step of move mounting into the /media.

The part that fails is the equivalent of the last line in these steps:

 mkdir -p /tmp/testing
 cd /tmp/testing/
 mkdir -p foo bar
 mount -t tmpfs tmpfs foo/
 mount --move foo bar/

The last step will give the error:

mount: wrong fs type, bad option, bad superblock on /tmp/testing/foo,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail or so

This worked (the mount --move) in Fedora 16 (without sandbox installed) and
Fedora 17. But not in fedora 18.

When the bug appeared briefly in F16, this bug:

was logged. As noted there removing sandbox fixed the problem.

F18 seems to make use of pam_sandbox which is probably want is stopping the
mount --move this time.

So how do I configure/remove pam_sandbox so the mounts will work again?

Norman Gaywood, Computer Systems Officer
University of New England, Armidale,
NSW 2351, Australia

ngaywood at            Phone: +61 (0)2 6773 2412    Fax:   +61 (0)2 6773 3312

Please avoid sending me Word or Power Point attachments.
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