fstab won't mount SMB/CIFS share in Ubuntu 14.04 (after upgrade from 12.04 LTS)

Question

I have a NAS network file server which under Ubuntu 12.04LTS I used to automatically mount using the following entry in my fstab file:

//nas-A0-B9-AF/public /opt/Z cifs credentials=/home/user/.smbcredentials,uid=1000,iocharset=utf8 0 0

I upgraded to 14.04 (big mistake) and the share does not mount! Nothing has changed on the server side. Although I can manually mount the partition by the following command, I no longer have read write access

sudo mount  192.168.1.103:/c/public /opt/Z

I hope someone can help me; this is causing me a great deal of stress and lot of wasted time.

Just one thing: During the upgrade process I opted for my samba configuration to be left as it was under 12.04LTS.

Solution 1

Through an insane number of trial and error experiments and scouring different discussion fora (not forums, fora) I found the following works

//192.168.1.103/public /opt/Z cifs username=,password=,_netdev,uid=1000,iocharset=utf8,sec=ntlm 0 0

I have no idea what sec=ntlm means, but it appears to solve my problem. Could someone please do a post-mortem on this for me? (Neon_overload: Thank you for trying to help anyway.)

Solution 2

Thanks for posting the "sec=ntlm" security option. I have been trying for days to get my new version of Ubuntu to automount a CIFS share. According to the mount.cifs man page, the default, in kernels prior to 3.8, was "sec=ntlm". The new default is "sec=ntlmssp". The man page explains the 9 different security mode options.

Solution 3

I know it's been a while, however, I'd like to share what worked for me. It turns out that installing package 'cifs-utils' was all I needed to add. I had sec=ntlm, but still received an error stating wrong fs type, bad superblock.

Installing cifs-utils fixed the issue and mount -a worked fine after that.

Comments

[user169954]

I tried this, but to no effect. I issuse sudo mount -a, but I get mount error(95): operation not supported Refer to the mount.cifs(8) manual page

[thomasrutter]

I edited my answer a couple of times as I wasn't certain which package to reconfigure, so do re-read. If that still doesn't work I'm out of ideas.

[user169954]

Yeah, done those too, no effect.

[Jelle Geerts]

+1 thanks, I am grateful not having to do all your research for myself. This worked.