my fstab //192.168.1.14 /media/mainpc cifs credentials=/home/lmgn/.pccredentials,iocharset=utf8,sec=ntlm 0 0

lmgn@blackandwhite:~$ sudo mount -a
mount error(22): Invalid argument
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)

var/log/kern.log

CIFS VFS: Malformed UNC in devname.