[Bug 462171] Re: 'grub-install --no-floppy /dev/md0' fails

[Olleg]

After two years this bug is confirmed. :) Incredible. :)

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https://bugs.launchpad.net/bugs/462171

Title:
  'grub-install  --no-floppy /dev/md0' fails

Status in “grub-installer” package in Ubuntu:
  Confirmed
Status in “grub2” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: grub-installer

  1.97~beta4-1ubuntu3 from karmic-updates lead to errors on installation
  on software raid and to unbootable system.

  Oct 27 10:37:35 in-target: Настраивается пакет grub-common (1.97~beta4-1ubuntu3) ...
  Oct 27 10:37:35 in-target: 
  Oct 27 10:37:35 in-target: Настраивается пакет grub-pc (1.97~beta4-1ubuntu3) ...
  Oct 27 10:37:36 debconf: Obsolete command TITLE Настраивается пакет grub-pc called
  Oct 27 10:37:36 in-target: 
  Oct 27 10:37:36 in-target: Creating config file /etc/default/grub with new version
  Oct 27 10:37:36 in-target: 
  Oct 27 10:37:36 in-target: Обрабатываются триггеры для libc-bin ...
  Oct 27 10:37:36 in-target: ldconfig deferred processing now taking place
  Oct 27 10:37:37 anna-install: Installing ext2-modules
  Oct 27 10:37:37 os-prober: unknown udeb ext2-modules
  Oct 27 10:37:37 anna-install: Installing ext3-modules
  Oct 27 10:37:37 os-prober: unknown udeb ext3-modules
  Oct 27 10:37:37 anna-install: Installing ext4-modules
  Oct 27 10:37:37 os-prober: unknown udeb ext4-modules
  Oct 27 10:37:37 anna-install: Installing reiserfs-modules
  Oct 27 10:37:37 anna-install: Installing xfs-modules
  Oct 27 10:37:37 anna-install: Installing jfs-modules
  Oct 27 10:37:37 anna-install: Installing msdos-modules
  Oct 27 10:37:37 os-prober: unknown udeb msdos-modules
  Oct 27 10:37:37 anna-install: Installing vfat-modules
  Oct 27 10:37:37 os-prober: unknown udeb vfat-modules
  Oct 27 10:37:37 anna-install: Installing ntfs-modules
  Oct 27 10:37:37 anna-install: Installing minix-modules
  Oct 27 10:37:37 os-prober: unknown udeb minix-modules
  Oct 27 10:37:37 anna-install: Installing hfs-modules
  Oct 27 10:37:37 anna-install: Installing hfsplus-modules
  Oct 27 10:37:37 os-prober: unknown udeb hfsplus-modules
  Oct 27 10:37:37 anna-install: Installing qnx4-modules
  Oct 27 10:37:37 os-prober: unknown udeb qnx4-modules
  Oct 27 10:37:37 anna-install: Installing ufs-modules
  Oct 27 10:37:37 os-prober: unknown udeb ufs-modules
  Oct 27 10:37:37 anna-install: Installing fs-core-modules
  Oct 27 10:37:37 anna-install: Installing fs-secondary-modules
  Oct 27 10:37:37 os-prober: File descriptor 3 left open
  Oct 27 10:37:37 os-prober: File descriptor 4 left open
  Oct 27 10:37:37 os-prober: File descriptor 5 left open
  Oct 27 10:37:37 os-prober: File descriptor 6 left open
  Oct 27 10:37:37 os-prober: debug: running /usr/lib/os-probes/50mounted-tests on /dev/sda1
  Oct 27 10:37:37 50mounted-tests: debug: /dev/sda1 is a swap partition; skipping
  Oct 27 10:37:37 os-prober: debug: os detected by /usr/lib/os-probes/50mounted-tests
  Oct 27 10:37:37 os-prober: debug: running /usr/lib/os-probes/50mounted-tests on /dev/sda2
  Oct 27 10:37:37 os-prober: debug: running /usr/lib/os-probes/50mounted-tests on /dev/sdb1
  Oct 27 10:37:37 50mounted-tests: debug: /dev/sdb1 is a swap partition; skipping
  Oct 27 10:37:37 os-prober: debug: os detected by /usr/lib/os-probes/50mounted-tests
  Oct 27 10:37:37 os-prober: debug: running /usr/lib/os-probes/50mounted-tests on /dev/sdb2
  Oct 27 10:37:37 grub-installer: info: Installing grub on '/dev/md0'
  Oct 27 10:37:37 grub-installer: info: grub-install supports --no-floppy
  Oct 27 10:37:37 grub-installer: info: Running chroot /target grub-install  --no-floppy "/dev/md0"
  Oct 27 10:37:38 grub-installer: grub-setup: warn: Attempting to install GRUB to a partition instead of the MBR.  This is a BAD idea.
  Oct 27 10:37:38 grub-installer: grub-setup: error: Embedding is not possible, but this is required when the root device is on a RAID array or LVM volume.
  Oct 27 10:37:38 grub-installer: error: Running 'grub-install  --no-floppy "/dev/md0"' failed.
  Oct 27 10:37:48 main-menu[420]: (process:12827): File descriptor 3 left open
  Oct 27 10:37:48 main-menu[420]: (process:12827): File descriptor 4 left open
  Oct 27 10:37:48 main-menu[420]: (process:12827): File descriptor 5 left open
  Oct 27 10:37:48 main-menu[420]: (process:12827): File descriptor 6 left open
  Oct 27 10:37:48 main-menu[420]: (process:12827):   Volume group "md0" not found

  
  1.97~beta4-1ubuntu2 from the CD works fine. Workaround, manually downgrade grub-pc or don't setup network on install (if setup network then grub-pc is updated quietly and lead to unbootable system).

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