I installed Ubuntu 16.0.4 LTS on a fresh disk in an IBM ThinkPad x140E - not as dual boot, just the only OS. I do not need dual boot.
Boot mode is: Secure Boot Off and UEFI boot only.
We have FIVE of these same exact model ThinkPads and I wanted to have a clone of this setup running in another one.
I used Clonezilla to copy the disk and either disk will boot in the original ThinkPad with no problems.
I took one of the disks to a second ThinkPad but neither disk will boot in that system.
No matter how I set the BIOS I cannot get to anything but a BIOS select boot device screen - none of which will boot.
I suspect this is related to UEFI but I have no idea what to do to get the second system booted.