Public bug reported: I am trying to install Ubuntu 12.04 amd64 automatically on a partitionable software RAID1 using the debian-installer and preseeding. The relevant preseeding settings are:
d-i partman/early_command string /bin/dd if=/dev/zero of=/dev/sda bs=512 count=1 && \ /bin/dd if=/dev/zero of=/dev/sdb bs=512 count=1 && \ /sbin/mdadm --create /dev/md0 --metadata=1.0 --auto=mdp \ --raid-devices=2 --level=1 --bitmap=internal --homehost=xyz /dev/sd[ab] d-i partman-auto/disk string /dev/md0 d-i grub-installer/only_debian boolean true d-i grub-installer/with_other_os boolean true Everything works smoothly until the grub installation step is reached. With these preseeding settings, d-i is supposed to install the boot loader into the MBR. Due to unknown reasons (a bug?), it tries to install grub to /dev/md0p1, i. e. the first partition on the RAID array. Moreover this attempt results in a grub-install segmentation fault. Even if I run chroot /target grub-install /dev/md0 manually on a console, grub-install seg faults. If instead I run chroot /target update-grub chroot /target grub-install /dev/sda chroot /target grub-install /dev/sdb on a console, I get a bootable system on a partitionable raid (as desired). In principle this workaround would probably be automisable by making use of d-i grub-installer/bootdev string (hd0) (hd1) but due to bug #1012629 (https://bugs.launchpad.net/ubuntu/+source /debian-installer/+bug/1012629) this does not work, either. :-( ** Affects: grub-installer (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1058129 Title: grub-install seg faults on partitionable raid1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1058129/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
