Recently, I bought a 250GB Samsung 840 EVO SSD. I wanted to migrate my system to it, so I copied my / and swap partition to it and ran boot-repair. The program told me I was in EFI mode so I made an EFI partition at the start of the disk and put the boot flag on it. I ran boot-repair again and this time it completed successfully. But when I rebooted and selected the SSD to boot from, my BIOS says:
This is not a bootable disk. Please insert a bootable floppy and press any key to try again ...
Then when I press a key I get:
error: no such partition.
Entering rescue mode...
grub rescue>
Sigh. How can I get my PC into a usable state, booting from the SSD?
Additional information: The live USB does not seem to want to boot besides in UEFI mode. My boot info script is at http://www.paste.ubuntu.com/9436761
update-grub
but I'm not sure how to do that from a live cd/usb, though it's a common fix. I'd imagine the boot-repair program would have tried that though... Maybe it's just missing the boot flag?