GNU bug report logs - #28445
match-error in 'device-sexp->device' while building system

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Message #44 received at 28445 <at> debbugs.gnu.org (full text, mbox):

From: Danny Milosavljevic <dannym <at> scratchpost.org>
To: ludo <at> gnu.org (Ludovic Courtès)
Cc: 28445 <at> debbugs.gnu.org, help-guix <help-guix <at> gnu.org>,
 Roel Janssen <roel <at> gnu.org>
Subject: Re: Cannot boot GuixSD after system reconfigure
Date: Fri, 22 Sep 2017 16:23:39 +0200

On Fri, 22 Sep 2017 16:03:47 +0200
ludo <at> gnu.org (Ludovic Courtès) wrote:

> However, there’s one thing I’d like to double-check with Danny, which is
> the word order.  With this patch, I have:
> 
>   (fat32-uuid->string (string->fat32-uuid "aabb-ccdd"))
>   $7 = "CCDD-AABB"
> 
> Danny: are you sure the most-significant 16-bit word comes last?

See https://github.com/karelzak/util-linux/blob/master/libblkid/src/superblocks/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]);

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