A Start Job Started by Dev-disk-by..

If you get “a start job started by dev-disk-by..” followed by a 90 second delay during each boot, complete the following steps:

  1. Install Gparted using the Software Center
  2. Open Gparted and see what partition is the swap partition.
  3. Reformat the swap partition if necessary.
  4. Copy UUID of the swap partition.
  5. Edit the fstab file using the line below.
    sudo -H gedit /etc/fstab
  6. Find the entry of the swap partition.
  7. Replace the UUID of the swap by the one you previously copied.
  8. Save the fstab file.
  9. Reset your computer.