This bug is not fixed for me. I'm using 11.04, raid 1, grub-pc 1.99~rc1-13ubuntu3.
# apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 3 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Do you want to continue [Y/n]? y Setting up linux-image-2.6.38-13-generic (2.6.38-13.56) ... Running depmod. update-initramfs: Generating /boot/initrd.img-2.6.38-13-generic Not updating initrd symbolic links since we are being updated/reinstalled (2.6.38-13.53 was configured last, according to dpkg) Not updating image symbolic links since we are being updated/reinstalled (2.6.38-13.53 was configured last, according to dpkg) Examining /etc/kernel/postinst.d. run-parts: executing /etc/kernel/postinst.d/initramfs-tools 2.6.38-13-generic /boot/vmlinuz-2.6.38-13-generic run-parts: executing /etc/kernel/postinst.d/pm-utils 2.6.38-13-generic /boot/vmlinuz-2.6.38-13-generic run-parts: executing /etc/kernel/postinst.d/update-notifier 2.6.38-13-generic /boot/vmlinuz-2.6.38-13-generic run-parts: executing /etc/kernel/postinst.d/zz-update-grub 2.6.38-13-generic /boot/vmlinuz-2.6.38-13-generic error: found two disks with the index 0 for RAID md/1. error: found two disks with the index 0 for RAID md/0. error: found two disks with the index 0 for RAID md/1. error: found two disks with the index 0 for RAID md/0. Generating grub.cfg ... error: found two disks with the index 0 for RAID md/1. error: found two disks with the index 0 for RAID md/0. error: found two disks with the index 0 for RAID md/1. error: found two disks with the index 0 for RAID md/0. error: found two disks with the index 0 for RAID md/1. error: found two disks with the index 0 for RAID md/0. error: found two disks with the index 0 for RAID md/1. error: found two disks with the index 0 for RAID md/0. /usr/sbin/grub-probe: error: unknown filesystem. run-parts: /etc/kernel/postinst.d/zz-update-grub exited with return code 1 Failed to process /etc/kernel/postinst.d at /var/lib/dpkg/info/linux-image-2.6.38-13-generic.postinst line 1010. dpkg: error processing linux-image-2.6.38-13-generic (--configure): subprocess installed post-installation script returned error exit status 2 Setting up grub-pc (1.99~rc1-13ubuntu3) ... Generating grub.cfg ... /usr/sbin/grub-probe: error: no such disk. dpkg: error processing grub-pc (--configure): subprocess installed post-installation script returned error exit status 1 dpkg: dependency problems prevent configuration of grub-gfxpayload-lists: grub-gfxpayload-lists depends on grub-pc (>= 1.99~20101210-1ubuntu2); however: Package grub-pc is not configured yet. dpkg: error processing grub-gfxpayload-lists (--configure): dependency problems - leaving unconfigured No apport report written because the error message indicates it's a follow-up error from a previous failure. Errors were encountered while processing: linux-image-2.6.38-13-generic grub-pc grub-gfxpayload-lists E: Sub-process /usr/bin/dpkg returned an error code (1) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/681535 Title: Auto-detection of a filesystem of /dev/md0 failed. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/681535/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs