I have a number of fstab entries that will no longer mount. They used to work under 10.04 and after I did a clean install of 12.04, they did work for a while although they would periodically hang up and become unresponsive until they were unmounted "lazily" and then remounted. Now, I can't mount them at all.
The shares all mount fine in nautilus. When trying to mount commandline:
sudo mount -t cifs //target/share /shares/mount_point -o user=username,password=password
nothing happens. It just sits there; no error, no messages in the logs, no timeout(!) so far as I have left it trying (minutes). No messages come up in the remote computer's logs (Windows).
This appears to be the same problem that appears here:
However, all my packages are up-to-date and higher versions than those listed in the solution to the above.