I have a CentOS 5 machine with an external 500G USB disk, formatted with JFS. How do I get this to mount automatically at boot time? If I add to /etc/fstab: /dev/sdb1 /var/video jfs defaults 1 2 fsck.jfs complains at boot time: Error: Cannot open device /dev/sdb1 Usage: fsck.jfs ... ... Give root password for maintenance ... If I log in with the root password, /dev/sdb1 is present, and I can run fsck.jfs -f /dev/sdb1 without problems. After ctrl-D it reboots, and gives the above error again. I have to log in as root, remount,rw / and remove the /dev/sdb1 line from /etc/fstab to get it to boot. The problem is not related to JFS; it occurs with an external ext3 file system as well. How do I mount /dev/sdb1 automatically at boot? Mogens -- Mogens Kjaer, Carlsberg A/S, Computer Department Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark Phone: +45 33 27 53 25, Mobile: +45 22 12 53 25 Email: mk at crc.dk Homepage: http://www.crc.dk