Mine ended up being the RAID-0 mdadm device that was a physical volume in my LVM2 Volume Group. again see
When I got everything migrated off of it, the Ubuntu Karmic Alternate CD (Beta) installed grub2 with no segfaults. I'm guessing the problem was how grub-probe detected the /dev/md0 segment of the 8 physical volumes that were in my LVM. I'm installed now with my VG spread across about 5 physical volumes. Of course it didn't see my Jaunty install or my XP install... but that is another issue :-) So in the end mine was: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=550682 (slightly different issue than what you guys are experiencing) -- grub-setup crashed with SIGSEGV in __libc_start_main() https://bugs.launchpad.net/bugs/386802 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs