(iii) Normally, only the superuser can mount file systems. However, when fstab contains the user option on a line, then anybody can mount the corresponding system. Thus, given a line /dev/cdrom /cd iso9660 ro,user,noauto,unhide any user can mount the iso9660 file system found on his CDROM using the command mount /dev/cdrom or mount /cd OK? -- Alan Robertson alanr at unix.sh