Working system

--------------------- 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>
/dev/mapper/mint--vg-root /               ext4    errors=remount-ro 0       1
# /boot was on /dev/sda1 during installation
UUID=88781b29-2bf7-4c87-b38a-7f9f3279b6c2 /boot           ext2    defaults        0       2
#/dev/mapper/mint--vg-swap_1 none            swap    sw              0       0
/dev/mapper/cryptswap1 none swap sw 0 0
--------------------- fstab --------------------


------------------- crypttab -------------------
sda5_crypt UUID=5c78466e-dc5e-4433-ad76-96aca3fd82c0 none luks,discard  [THE UUID HERE IS ACTUALLY THE BLKID OF /dev/sda5]
cryptswap1 UUID=ad7ba628-2aa9-4ce3-bad0-e45bc07ca978 /dev/urandom swap,offset=1024,cipher=aes-xts-plain64
------------------- crypttab -------------------


--------------------- blkid --------------------
/dev/mapper/sda5_crypt: UUID="t2hOvZ-qbz2-nB41-YnG5-diYw-6oLf-LcUF76" TYPE="LVM2_member"
/dev/mapper/cryptswap1: UUID="9a52b166-5635-4edd-a554-2ce475307b4d" TYPE="swap"
/dev/mapper/mint--vg-root: UUID="3808e0ff-11c1-4a5c-b79f-70699668d117" TYPE="ext4"
/dev/mapper/mint--vg-swap_1: UUID="ad7ba628-2aa9-4ce3-bad0-e45bc07ca978" TYPE="swap"
/dev/sda1: UUID="88781b29-2bf7-4c87-b38a-7f9f3279b6c2" TYPE="ext2" PARTUUID="2f2ca443-01"
/dev/sda5: UUID="5c78466e-dc5e-4433-ad76-96aca3fd82c0" TYPE="crypto_LUKS" PARTUUID="2f2ca443-05"
--------------------- blkid --------------------