ubuntu@ubuntu:~$ sudo mount /dev/sda6 /mnt


ubuntu@ubuntu:~$ cat /mnt/etc/fstab
# /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/sda6 during installation
UUID=20cdee52-cdef-441d-abf6-4e1f7f3a720d /               ext4    errors=remount-ro 0       1
# swap was on /dev/sda5 during installation
UUID=1ba1c8c3-ae10-4e09-9e76-99fae835d72d none            swap    sw              0       0


ubuntu@ubuntu:~$ sudo umount /mnt