Appliies Fedora/Redhat/CentOS,etc., but I have just using the OSes mentioned: I started to run into this with ext3 when changing mount points: From the /etc/fstab … LABEL=/backup /backup ext3 defaults 1 2 … mount /backup Error message: mount: special device LABEL=/backup does not exist tune2fs -L /backup /dev/cciss/c0d2p1 tune2fs 1.39 (29-May-2006) mount /backup