I never paid attention to the error message that, every time I started Ubuntu 14.04, was saying that " The disk drive for /dev/mapper/cryptswap1 is not ready yet or not present ". However, this caused that today I couldn't start the system at all, which is a painful and stressful experience. These are the steps I followed to fix the issue and get Ubuntu back to life. 1) At the GRUB menu , start Ubuntu in recovery mode 2) At the Recovery menu , select " Drop to root shell prompt " 3) Type " sudo swapoff -a " to disable swapping 4) Type " sudo mount -o remount,rw " to have write access to the system files 5) Type " sudo nano -w /etc/crypttab " and put a "#" at the beginning of the line that starts with " cryptswap1 ". Save the file. 6) Type " sudo nano -w /etc/fstab " and put a " # " at the beginning of the line that starts with " /dev/mapper/cryptswap1 ". Save the