Why is my machine unable to mount my SMB drives ("CIFS VFS: Error connecting to socket. Aborting operation", return code -115)?
- by downbeat
I have a machine running Precise (12.04 x64), and I cannot mount my SMB drives (I have 3, we'll call them public, private and download). It used to work (a week or two ago) and I didn't touch fstab! The machine hosting the shares is a commercial NAS, and I'm not seeing anything that would indicate it's an issue with the NAS.
I have an older machine which I updated to Precise at the same time (both fresh installed, not dist-upgrade), so should have a very similar configuration. It is not having any problems. I am not having problems on windows machines/partitions either, only one of my Precise machines.
The two machines are using identical entries in fstab and identical /etc/samba/smb.conf files. I don't think I've ever changed smb.conf (has never mattered before).
My fstab entries all basically look like this:
//10.1.1.111/public /media/public cifs credentials=/home/downbeat/.credentials,iocharset=utf8,uid=downbeat,gid=downbeat,file_mode=0644,dir_mode=0755 0 0
Here's the dmesg output on boot:
[ 51.162198] CIFS VFS: Error connecting to socket. Aborting operation
[ 51.162369] CIFS VFS: cifs_mount failed w/return code = -115
[ 51.194106] CIFS VFS: Error connecting to socket. Aborting operation
[ 51.194250] CIFS VFS: cifs_mount failed w/return code = -115
[ 51.198120] CIFS VFS: Error connecting to socket. Aborting operation
[ 51.198243] CIFS VFS: cifs_mount failed w/return code = -115
There are no other errors I see in the dmesg output.
Originally when I ran 'testparm -s', the output contained these lines
ERROR: lock directory /var/run/samba does not exist
ERROR: pid directory /var/run/samba does not exist
Here's the samba related programs I have installed:
$ dpkg --list|grep -i samba
ii libpam-winbind 2:3.6.3-2ubuntu2.3 Samba nameservice and authentication integration plugins
ii libwbclient0 2:3.6.3-2ubuntu2.3 Samba winbind client library
ii nautilus-share 0.7.3-1ubuntu2 Nautilus extension to share folder using Samba
ii python-smbc 1.0.13-0ubuntu1 Python bindings for Samba clients (libsmbclient)
ii samba-common 2:3.6.3-2ubuntu2.3 common files used by both the Samba server and client
ii samba-common-bin 2:3.6.3-2ubuntu2.3 common files used by both the Samba server and client
ii winbind 2:3.6.3-2ubuntu2.3 Samba nameservice integration server
$ dpkg --list|grep -i smb
ii dmidecode 2.11-4 SMBIOS/DMI table decoder
ii libsmbclient 2:3.6.3-2ubuntu2.3 shared library for communication with SMB/CIFS servers
ii python-smbc 1.0.13-0ubuntu1 Python bindings for Samba clients (libsmbclient)
ii smbclient 2:3.6.3-2ubuntu2.3 command-line SMB/CIFS clients for Unix
ii smbfs 2:5.1-1ubuntu1 Common Internet File System utilities - compatibility package
$ dpkg --list|grep -i cifs
ii cifs-utils 2:5.1-1ubuntu1 Common Internet File System utilities
ii libsmbclient 2:3.6.3-2ubuntu2.3 shared library for communication with SMB/CIFS servers
ii smbclient 2:3.6.3-2ubuntu2.3 command-line SMB/CIFS clients for Unix
I originally noticed that my other machine had "libpam-winbind" and "nautilus-share" installed and the machine with the issue did not. Installing those two packages solved my errors with 'testparm -s', but did not fix my issue.
Finally, I tried to purge and reinstall these packages
smbclient
smbfs
cifs-utils
samba-common
samba-common-bin
Still no luck. Again, it used to work; now it doesn't. Very similarly configured machine works (but some packages are out of date on the working machine). The NAS has only one interface/IP address, nmblookup works to find it's IP from it's hostname (from the machine with the issue) and it responds to a ping. Please any help would be great. I've been searching on AskUbuntu, SuperUser, ubuntuforums and plain old search engines for a week now and it's driving me crazy!
