[Bug 825145] Re: GRUB and software raid issue

[YannUbuntu]

Seems like the problem here is that Ubiquity installed Ubuntu in EFI
mode when it should have installed it in Legacy mode.

(maybe duplicate of Bug #1050940 )

** Also affects: ubiquity
   Importance: Undecided
       Status: New

** Summary changed:

- GRUB and software raid issue
+ GRUB , UEFI and software raid issue

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https://bugs.launchpad.net/bugs/825145

Title:
  GRUB , UEFI and software raid issue

Status in Ubiquity:
  New
Status in “grub2” package in Ubuntu:
  New

Bug description:
  Release:        11.04
  After installation of 11.04 ( server or alternate CD ) MBR has no GRUB. Chroot method did not help., 
  root at ubuntu:/# sudo grub-install /dev/sda
  Installation finished. No error reported.
  but MBR has no boot after.
  I found only one way how to fix:
  1) Boot from LiveCd
  2) apt-get install -y grub-pc
  ubuntu at ubuntu:~$ sudo chroot /mnt
  root at ubuntu:/# apt-get install -y grub-pc
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  The following package was automatically installed and is no longer required:
    efibootmgr
  Use 'apt-get autoremove' to remove them.
  The following extra packages will be installed:
    grub-gfxpayload-lists
  Suggested packages:
    desktop-base
  The following packages will be REMOVED:
    grub-efi grub-efi-amd64
  The following NEW packages will be installed:
    grub-gfxpayload-lists grub-pc
  0 upgraded, 2 newly installed, 2 to remove and 76 not upgraded.
  Need to get 942 kB of archives.
  .....

  
  ...................
  ubuntu at ubuntu:~$ sudo lvchange -a y /dev/dbs16/root
  ubuntu at ubuntu:~$ sudo mount /dev/dbs16/root /mnt
  ubuntu at ubuntu:~$ sudo mount -B /dev /mnt/dev
  ubuntu at ubuntu:~$ sudo mount -B /dev/pts /mnt/dev/pts
  ubuntu at ubuntu:~$ sudo mount -B /proc /mnt/proc
  ubuntu at ubuntu:~$ sudo mount -B /sys /mnt/sys
  ubuntu at ubuntu:~$ sudo chroot /mnt
  root at ubuntu:/# sudo update-grub
  Generating grub.cfg ...
  Found linux image: /boot/vmlinuz-2.6.38-8-server
  Found initrd image: /boot/initrd.img-2.6.38-8-server
  Found linux image: /boot/vmlinuz-2.6.38-8-generic
  Found initrd image: /boot/initrd.img-2.6.38-8-generic
  Found memtest86+ image: /boot/memtest86+.bin
  done
  root at ubuntu:/# sudo grub-install /dev/sda
  Installation finished. No error reported.
  root at ubuntu:/# sudo grub-install /dev/sdb
  Installation finished. No error reported.
  .......
  3) sudo grub-install /dev/sda
  and I managed boot Ubuntu.
  Seems problem is in EFI.
  Full store of this bug is here
  http://ubuntuforums.org/showthread.php?t=1813136

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: grub (not installed)
  ProcVersionSignature: Ubuntu 2.6.38-8.42-server 2.6.38.2
  Uname: Linux 2.6.38-8-server x86_64
  Architecture: amd64
  Date: Fri Aug 12 13:34:05 2011
  InstallationMedia: Ubuntu-Server 11.04 "Natty Narwhal" - Release amd64 (20110426)
  ProcEnviron:
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub
  UpgradeStatus: No upgrade log present (probably fresh install)

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