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SubjectRe: [PATCH 2/2] genhd, efi: add efi partition metadata to hd_structs
>>>>> "Kay" == Kay Sievers <kay.sievers@vrfy.org> writes:

Kay> On Wed, Aug 4, 2010 at 00:27, Will Drewry <wad@chromium.org> wrote:
>> On Tue, Aug 3, 2010 at 4:54 PM, Kay Sievers <kay.sievers@vrfy.org> wrote:

>>> Did you already test to put a lookup-call to the in-kernel mounter, if
>>> we use some special partition table uuid identifier for root=? That
>>> would be nice to see, if all that works as expected, and we can get to
>>> the data we collect.
>>
>> Not yet, but I'd like to have it working there (and in my
>> device-mapper target) as soon as possible.  Hopefully, I'll have that
>> done pretty soon and I'll repost the series inclusive of an init:
>> change.

Kay> Nice.

>> Any preferences on the variable? I'll start with your example of
>> PARTUUID=, but that follows the initramfs model (UUID=) and not the
>> existing magic root devices (/dev/nfs, /dev/ram).
>> /dev/by-part-uuid/XXX... doesn't seem super-friendly though :)

Kay> Yeah, this stuff does not really fit in to the path notation
Kay> stuff, unless we use the udev-style link names, which some people
Kay> like to avoid, and prefer some more abstract thing here.

Kay> We have UUID=, LABEL= for mount and fstab, I think PARTUUID=,
Kay> PARTLABEL= matches this.

Ugh, why do we care whether a UUID refers to a disk or a partition?
It should be unique no matter what, so just do /dev/uuid/XXXX and call
it done.
John
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