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?