Package: grub-common Version: 2.02~beta2-22+deb8u1 In some special cases grub-probe fails with "double free or corruption (fasttop)".
My HDD layout looked like that: 4 HDDs, GPT: 1) 1MB bios_boot 2) MD RAID1 (spanning all 4 HDDs), /boot, ext4 3) MD RAID1 (spanning 2x2 HDDs), PVs for LVM (stripped LVs) grub-install crashed during Debian installation, preventing a successfull Debian installation, but it's really grub-probe causing the problem. The same setup using MSDOS partitioning scheme works without problems. It's actually fixed upstream: http://savannah.gnu.org/bugs/?41582 Fixed in Ubuntu as well: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1330963 Hope that's enough information. Best regards, Markus