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[bug #37454] grub2 will not install to an ext2 ext3 ext4 partition

From: Chris Murphy
Subject: [bug #37454] grub2 will not install to an ext2 ext3 ext4 partition
Date: Fri, 28 Sep 2012 18:08:36 +0000
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.79 Safari/537.4

Follow-up Comment #6, bug #37454 (project grub):

F18 alpha, all new installation. Single clean disk, four partitions, 3x ext4,
1x swap.

grub2-install /dev/sda
Installation finished. No error reported.

grub2-install --force /dev/sda1
/usr/sbin/grub2-bios-setup: warning: File system `ext2' doesn't support
/usr/sbin/grub2-bios-setup: warning: Embedding is not possible.  GRUB can only
be installed in this setup by using blocklists.  However, blocklists are
UNRELIABLE and their use is discouraged..

There is code now in the first sector of /dev/sda1 unlike previous attempts.
So it seems --force is resulting in successful block listing on ext4 so long
as it's not a cross-disk install. So it would seem this is a false alarm and

Additional information:
Fedora 18 installer devs intend to have a hidden (was previously exposed)
feature to use --force to install GRUB with block lists, for those users who
wish to install Fedora but preserve their legacy boot loader in LBA0 and in
the MBR gap. Is there a preferred alternative?


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