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For some reason, I can mount my NAS using cifs as follows:

sudo mount -t cifs // -o username=xxxxxxxxxxxxx,password=xxxxxxxxxxx,rw,nounix,iocharset=utf8,file_mode=0644,dir_mode=0755 /mnt/nas

But when I enter this into my fstab:

//    /mnt/nas   cifs  username=xxxxxxxxxxxxx,password=xxxxxxxxxxxxx,rw,nounix,iocharset=utf8,file_mode=0644,dir_mode=0755

And I run this:

sudo mount -a

I get this:

mount: unknown filesystem type 'cifs'

Any help here would be awesome. Thanks

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I think you forgot to add /data in the fstab entry – thefourtheye Apr 30 '13 at 14:57
twas the issue. Thanks – Andrew Rhyne Apr 30 '13 at 14:59

The mobule is probably not loaded.

sudo modprobe cifs

*updated with the module name

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