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SubjectRe: LANANA: To Pending Device Number Registrants

On Sat, May 19, 2001 at 05:29:32PM +1200, Chris Wedgwood wrote:
> Or you can fall back to mounting by UUID, which is globally
> unique and still avoids referencing physical location. You also
> don't need to manually set LABELs for UUID to work: all e2fsprogs
> over the past couple of years have set UUID on partitions, and
> e2fsck will create a new UUID if it sees an old filesystem that
> doesn't already have one.
> Other filesystems such as reiserfs at present don't have such a
> thing. I brought this a while ago and in theory it's not too hard, we
> just need to get Hans to officially designate part of the SB or
> whatever for the UUID.

There are other ways to deal with it: both md and (I think, in newer
releases) LVM can pick up their logical config from scanning physical
volumes for IDs, and so present a consistent logical device namespace
despite physical devices moving around.

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