Comment 33 for bug 1838525

Thanks Rafael, Andreas and everybody for the great work done here! I successfully tested your fix as follows:

1. Followed the steps in the original description of this
   bug up the point where the installer tries to install
   grub to /dev/mapper and fails.

2. Replaced /target/usr/sbin/grub-mkdevicemap with the
   one extracted from the grub-common package in your PPA.

3. Retried the "install boot loader" installer step.

4. Success!

Funny how the original grub-mkdevicemap and your fixed version have the same size up to the byte.