[CentOS] Mount USB disk at startup?

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