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Couple changes for Linux raid metadata 1.x support

From: Doug Nazar
Subject: Couple changes for Linux raid metadata 1.x support
Date: Fri, 23 Jul 2010 17:02:35 -0400
User-agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv: Gecko/20100713 Thunderbird/3.1.1

 Strange timing. I ran into needing support for 1.2 metadata a few days
ago. Wrote the code yesterday and when I pulled to check for conflicts
before I submitted someone else had also just written the code.

Here are a few changes I had that are not in the tree:

- Don't use disks with outdated superblocks
- Don't use disks that are being rebuilt/transfomed
- Check superblock checksums
- Check superblock is in the correct location
- Update the recovery code to use the start_sector


Attachment: grub-update-raid-metadata-1x-support.diff
Description: Text document

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