покажите вывод
cat /etc/fstab
$ cat /etc/fstab
# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
# /dev/sda3
UUID=71cfc612-c112-419b-a80d-194a193a1b35 / ext3 relatime,errors=remount-ro 0 1
# /dev/sda4
UUID=593d877b-b007-412c-8d4b-f528d0443c33 /home ext3 relatime 0 2
# /dev/sda6
UUID=e714820b-527c-4434-9c92-e255fa8aa892 none swap sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0