From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=)
Subject: bug#28445: Cannot boot GuixSD after system reconfigure
Date: Fri, 22 Sep 2017 18:41:55 +0200
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To: Danny Milosavljevic <dannym@scratchpost.org>
Cc: 28445@debbugs.gnu.org, help-guix <help-guix@gnu.org>

Danny Milosavljevic <dannym@scratchpost.org> skribis:

> On Fri, 22 Sep 2017 16:03:47 +0200
> ludo@gnu.org (Ludovic Court=C3=A8s) wrote:
>
>> However, there=E2=80=99s one thing I=E2=80=99d like to double-check with=
 Danny, which is
>> the word order.  With this patch, I have:
>>=20
>>   (fat32-uuid->string (string->fat32-uuid "aabb-ccdd"))
>>   $7 =3D "CCDD-AABB"
>>=20
>> Danny: are you sure the most-significant 16-bit word comes last?
>
> See https://github.com/karelzak/util-linux/blob/master/libblkid/src/super=
blocks/vfat.c#L48
>
> blkid_probe_sprintf_uuid(pr, vol_serno, 4, "%02X%02X-%02X%02X",
> vol_serno[3], vol_serno[2], vol_serno[1], vol_serno[0]);

I see, thanks!

Roel, with commit 8a7d81a5e23c4d59fbabf2550db32d4ba5572e4b, you should
be able to write:

  (uuid "abcd-1234" 'fat32)

in your config, and it should work.

Let me know if it doesn=E2=80=99t.  :-)

Ludo=E2=80=99.