Subject: bug#44872: Installer crash: 'uuid->string' is passed #f in lieu of a UUID

From: Ludovic Courtès <[email-masked]>
Date: Fri, 23 Apr 2021 00:40:53 +0200

Ludovic Courtès <[email-masked]> skribis:

> Apparently what happens here is that ‘read-partition-uuid’, called by
> ‘user-partition->file-system’, returns #f, and that value is then passed
> to ‘uuid->string’.
>
> There are two ways ‘read-partition-uuid’ can return #f:
>
>   1. the partition doesn’t have one of the types listed in
>      ‘%partition-uuid-readers’;
>
>   2. the partition does not exist or is EIO (see use of ‘ENOENT-safe’ in
>      ‘partition-field-reader’).
>
> So most likely the problem is #2.

I pushed a change so that ‘read-partition-uuid’ & co. will no longer
swallow ENOENT, so we at least get more accurate error reports:

  https://git.savannah.gnu.org/cgit/guix.git/commit/?id=09ce4568f2cc1f87c5a5e0aa1643780c39a73088

Ludo’.