Bug#987008: grub LVM bug #987008: experimental package available, please test

[Hoyer, David]

I was not able to use the grub2 build as-is because we are running bullseye and the built image required newer versions of glibc.
However, I grabbed the original source code from Debian and the Debian code patch from https://people.debian.org/~anarcat/debian/sid/ and rebuilt it myself with minor tweaks so that it would build in bullseye (changed gcc-12 to gcc-10) and loaded it onto a system.
When running the test case Rogier which failed previously (fails within 120 iterations), it is now passing with >1000 iterations.