linux-kernel - Re: Kernel 2.6.23.9 + mdadm 2.6.2-2 + Auto rebuild RAID1?

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Message-ID: <Pine.LNX.4.64.0712061607420.19266@fbirervta.pbzchgretzou.qr>
Date:	Thu, 6 Dec 2007 16:08:49 +0100 (CET)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	Nix <nix@...eri.org.uk>
cc:	Justin Piszcz <jpiszcz@...idpixels.com>,
	linux-kernel@...r.kernel.org, linux-raid@...r.kernel.org,
	apiszcz@...arrain.com
Subject: Re: Kernel 2.6.23.9 + mdadm 2.6.2-2 + Auto rebuild RAID1?


On Dec 5 2007 19:29, Nix wrote:
>>
>> On Dec 1 2007 06:19, Justin Piszcz wrote:
>>
>>> RAID1, 0.90.03 superblocks (in order to be compatible with LILO, if
>>> you use 1.x superblocks with LILO you can't boot)
>>
>> Says who? (Don't use LILO ;-)
>
>Well, your kernels must be on a 0.90-superblocked RAID-0 or RAID-1
>device. It can't handle booting off 1.x superblocks nor RAID-[56]
>(not that I could really hope for the latter).

If the superblock is at the end (which is the case for 0.90 and 1.0),
then the offsets for a specific block on /dev/mdX match the ones for /dev/sda,
so it should be "easy" to use lilo on 1.0 too, no?
(Yes, it will not work with 1.1 or 1.2.)
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