у вас скорее всего что то не так в fstab
выложите содержание файла /etc/fstab
Ой, это оно?
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda7 during installation
UUID=e6931869-946b-4ef0-9e6d-9aafa9d7df37 / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/sda1 during installation
UUID=3773-64A4 /boot/efi vfat defaults 0 1
# swap was on /dev/sda5 during installation
UUID=ee2ef414-0bb7-4099-b0c1-d3aab9ca1bdf none swap sw 0 0