Obrigado ao @Palantir, a correção estava em execução: sudo mkswap / dev / mapeador / ubuntu - vg-swap_1
E comentando a última linha ou excluindo a última linha do / etc / fstab:
vmatir@vmatir-X200MA:~$ cat /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>
/dev/mapper/ubuntu--vg-root / ext4 errors=remount-ro 0 1
# /boot was on /dev/sda2 during installation
UUID=264a8a19-71da-4f00-b3f9-f90bd565b531 /boot ext2 defaults 0 2
# /boot/efi was on /dev/sda1 during installation
UUID=D764-71B4 /boot/efi vfat defaults 0 1
/dev/mapper/ubuntu--vg-swap_1 none swap sw 0 0
vmatir@vmatir-X200MA:~$
E agora a partição swap é montada na inicialização:
vmatir@vmatir-X200MA:~$ free -m
total usado libre compart. búffers almac.
Mem: 1888 1619 268 201 57 781
-/+ buffers/cache: 780 1107
Intercambio: 1931 0 1931
vmatir@vmatir-X200MA:~$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 465,8G 0 disk
├─sda1 8:1 0 512M 0 part /boot/efi
├─sda2 8:2 0 244M 0 part /boot
└─sda3 8:3 0 465G 0 part
└─sda3_crypt (dm-0) 252:0 0 465G 0 crypt
├─ubuntu--vg-root (dm-1) 252:1 0 463,1G 0 lvm /
└─ubuntu--vg-swap_1 (dm-2) 252:2 0 1,9G 0 lvm [SWAP]
vmatir@vmatir-X200MA:~$