I just encrypted my swap file and now after a reboot I see two devices with "swap" listed when I run blkid:
/dev/loop0: UUID="82a141ee-b1fd-4d52-a1fb-c0690bed732e" TYPE="swap" /dev/mapper/cryptswap1: UUID="3c73ab32-331e-47e7-8cb9-79f82ab41f5d" TYPE="swap" Does this mean I have two swap files, one encrypted and one not, or is this normal with encrypted swap?
My /etc/fstab only lists one:
# /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/nvme0n1p2 during installation UUID=6135b409-f997-4289-895e-a0abb0617c2b / ext4 errors=remount-ro 0 1 # /boot/efi was on /dev/nvme0n1p1 during installation UUID=757B-FF35 /boot/efi vfat umask=0077 0 1 #/swapfile none swap sw 0 0 /dev/mapper/cryptswap1 none swap sw 0 0 As does my /etc/crypttab:
# <target name> <source device> <key file> <options> cryptswap1 /swapfile /dev/urandom swap,offset=1024,cipher=aes-xts-plain64 And fdisk -lu lists them both as having 4GiB:
Disk /dev/loop0: 4 GiB, 4294967296 bytes, 8388608 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/mapper/cryptswap1: 4 GiB, 4294443008 bytes, 8387584 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes 
