[Bug 825145] Re: GRUB and software raid issue
Andrew Cranwell
825145 at bugs.launchpad.net
Mon Oct 31 02:44:48 UTC 2011
If you are booting in EFI mode, grub is not installed in the MBR but in
the EFI system partition, and registered into the EFI boot order with
efibootmgr - I've mainly be trying to get this working with 11.10
Desktop using the graphical installed (Ubiquity). A simple partition
setup seems to work but I haven't tried a server or alternate desktop
install yet.
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https://bugs.launchpad.net/bugs/825145
Title:
GRUB and software raid issue
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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