During boot I get the message:
/dev/mapper/elementary--vg-swap_1 is not ready yet or not present - message on boot
which has been deleted after a while. After a login I can't see any swap space related entry in mtab. How can I solve this problem?
My system doesn't boot with UEFI, the content of the file fstab is
# /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/elementary--vg-root / ext4 errors=remount-ro 0 1
# /boot was on /dev/sda1 during installation
UUID=82b8b0b7-107b-4c99-89a5-1b0801c65e0b /boot ext2 defaults 0 2
/dev/mapper/elementary--vg-swap_1 none swap sw 0 0
/dev/mapper/cryptswap1 none swap sw 0 0
/dev/sdb2 /opt ext4 rw,nosuid,nodev,auto,user,exec,uhelper=udisks2 0 0
The results of the commands lsblk, pvs, vgs and lvs are
$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 298.1G 0 disk
├─sda1 8:1 0 243M 0 part /boot
├─sda2 8:2 0 1K 0 part
└─sda5 8:5 0 297.9G 0 part
├─elementary--vg-root (dm-0) 252:0 0 282G 0 lvm /
└─elementary--vg-swap_1 (dm-1) 252:1 0 15.8G 0 lvm
sdb 8:16 0 2.7T 0 disk
├─sdb1 8:17 0 1M 0 part
├─sdb2 8:18 0 2.7T 0 part /opt
└─sdb3 8:19 0 15.8G 0 part
sdc 8:32 0 37.3G 0 disk
├─sdc1 8:33 0 21.5G 0 part
├─sdc2 8:34 0 1K 0 part
└─sdc5 8:37 0 15.8G 0 part
sr0 11:0 1 2K 0 rom
$ sudo pvs
[sudo] password for ralf:
PV VG Fmt Attr PSize PFree
/dev/sda5 elementary-vg lvm2 a-- 297.85g 16.00m
$ sudo vgs
VG #PV #LV #SN Attr VSize VFree
elementary-vg 1 2 0 wz--n- 297.85g 16.00m
$ sudo lvs
LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert
root elementary-vg -wi-ao---
282.03g
swap_1 elementary-vg -wi-a---- 15.80g
