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Unmount the partition umount /mnt Unmap the partition cryptsetup luksClose securebackup

Map the partition cryptsetup luksOpen /dev/sdXN securebackup Mount the partition mount /dev/mapper/securebackup /mnt

To setup partition encryption on Ubuntu, perform the following steps: Install the required software apt-get install cryptsetup For more security, erase the partition you want to encrypt with one of