There is also the issue that after system startup, cifs mounts from fstab don't make it into mtab, but they are definitely mounted. When bringing up the network manually, cifs mounts get mounted by /etc/network/if-up.d/mountnfs and show up in mtab (see also Bug#44874 and Bug#62607).
But I can't really tell if this issue is with smbfs or with initscripts. -- Network mounts don't get unmounted on ifdown https://launchpad.net/bugs/66308 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
