Comment 2 for bug 1320702

After reboot, no swap mounted.

$ free -h
             total used free shared buffers cached
Mem: 11G 1.2G 10G 207M 27M 603M
-/+ buffers/cache: 636M 10G
Swap: 0B 0B 0B

$ sudo swapon -a
swapon: /dev/mapper/ubuntu--vg-swap_1: read swap header failed: Invalid argument
swapon: /dev/mapper/cryptswap1: stat failed: No such file or directory