> //BUILDS/BIOS /mnt/builds cifs > credentials=/root/.smbpw > ,domain="a.com" 0 0 > Have you tried moving the quotes? For example: "credentials=/root/.smbpw,domain=a.com" It might be worth a shot to remove them altogether as well. I'm not sure how mount passes things around, but I suppose it might be retentive about it.