I've changed my harddisk, to a bigger one. The old one had Ubuntu 14.04 with full disk encryption (luks). The new hard disk has a fresh install of Ubuntu 15.10 without disk encryption.
I need however to boot the old hd to get some files from some programs (if possible boot it and not just file access). I've tried to take out the new hd and just put in the old hd, assuming it would boot. Well it didn't. I'm guessing, this has to do something with the GRUB boot loader, since I see in the boot option menu in my bios an entry for
What can I do to boot my old hd?