On Wed 26 Aug 2015 at 01:55:15 -0700, Ldten K wrote: > On Wed, 8/26/15, Pascal Hambourg <pas...@plouf.fr.eu.org> wrote: > > // Didn't you install a more recent version of GRUB (possibly from a new > // installation) at some time on that disk ? > > That could be it. The drive originally had a working wheezy installation that > booted > properly and worked just fine. I then decided to upgrade this working wheezy > installation > to testing/stretch, just to see how it would go. It did not go too well, so I > decided to revert > back to wheezy by restoring the data from my backup drive. The /boot > partition was restored > by dd-ing the data from /boot partition of the working backup drive > (/dev/sda1): > > # dd if=/dev/sda1 of=/dev/sdb1 conv=sync,noerror > > // Can you see the GRUB version which boots ? > > When booting, GRUB immediately drops me into the "grub rescue" mode. I did > not see any > version number nor I found any way to check the version number from "grub > rescue" mode.
I do not think there is a way of checking but the evidence for a version mismatch between GRUB and its modules seems strong. I would run a Wheezy installer image in rescue mode and reinstall GRUB to the MBR of the disk.
