From: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
To: Jes Sorensen <Jes.Sorensen@redhat.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: grub2/grub-pc install not possible on mdadm
Date: Fri, 02 Mar 2012 09:44:20 +0100 [thread overview]
Message-ID: <4F508864.4050600@profihost.ag> (raw)
In-Reply-To: <4F4F519E.7040206@redhat.com>
> Looking at your original mail again - you are running a raid with
> metadata 1.2, which means your BIOS will not know how to read the disks
> as a raid device.
> You should be able to install grub into the MBR of /dev/sda or /dev/sdb.
> I believe that is possible with 1.2 metadata. 1.1 was totally broken for
> this if I remember correctly.
Correct that's why i've also tried to install it on sda / sdb but then
grub complains about not finding any partition table.
> That said, if your system is EFI based, I suspect you will need to have
> the bios_grub partition on the physical drives so the BIOS can read it.
> It's not going to do much good having it on the raid partition if the
> BIOS isn't able to read those.
The bios is not the problem - grub simply does not want to install it
boot sector to sda / sdb.
It does it fine when using metadata 0.9.
Stefan
next prev parent reply other threads:[~2012-03-02 8:44 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-28 9:10 grub2/grub-pc install not possible on mdadm Stefan Priebe - Profihost AG
2012-03-01 10:10 ` Jes Sorensen
2012-03-01 10:25 ` Stefan Priebe - Profihost AG
2012-03-01 10:38 ` Jes Sorensen
2012-03-02 8:44 ` Stefan Priebe - Profihost AG [this message]
2012-03-02 9:06 ` Lars Täuber
2012-03-02 9:11 ` Stefan Priebe - Profihost AG
2012-03-02 9:24 ` John Robinson
2012-03-02 9:33 ` Stefan Priebe - Profihost AG
2012-03-02 11:14 ` John Robinson
2012-03-02 13:15 ` Stefan Priebe - Profihost AG
2012-03-02 13:45 ` John Robinson
2012-03-02 15:32 ` Lars Täuber
2012-03-05 7:50 ` Stefan Priebe - Profihost AG
2012-03-05 9:38 ` John Robinson
2012-03-05 10:14 ` Lars Täuber
2012-03-05 11:31 ` John Robinson
2012-03-05 11:38 ` Lars Täuber
2012-03-05 12:34 ` John Robinson
2012-03-02 9:14 ` Lars Täuber
2012-03-02 9:15 ` Lars Täuber
2012-03-02 10:56 ` Jes Sorensen
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