From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@gnu.org>
Subject: bug#39090: Installer fails on install disk built from master
Date: Wed, 15 Jan 2020 18:44:51 +0100
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 ("=?UTF-8?Q?G=C3=A1bor?= Boskovits"'s message of "Sat, 11 Jan 2020
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To: =?UTF-8?Q?G=C3=A1bor?= Boskovits <boskovits@gmail.com>
Cc: 39090-done@debbugs.gnu.org

Hello,

G=C3=A1bor Boskovits <boskovits@gmail.com> skribis:

> Ricardo Wurmus <rekado@elephly.net> ezt =C3=ADrta (id=C5=91pont: 2020. ja=
n. 11.,
> Szo, 17:44):
>>
>>
>> G=C3=A1bor Boskovits <boskovits@gmail.com> writes:
>>
>> > 5. create a file gexp.scm with this content:
>> > (use-modules
>> >  (gnu packages package-management)
>> >  (guix gexp))
>> >
>> > (program-file
>> >  "a"
>> >  (with-extensions
>> >   (list guix)
>> >   #~(#t)))
>> > 6. guix build -f gexp.scm
>> >
>> > This will fail with as strange error message.
>>
>> What=E2=80=99s the error message?
>
> guix build: error: got unexpected path <store-path-name> from substituter
>
> <store-path-name> varies, currently it was
> /gnu/store/0q95b...-libarchive-3.4.0.tar.gz

Fixed by e2922f527ee8d891a41b5086637fa560a1c2ddd8!  I=E2=80=99ll update the
=E2=80=98guix=E2=80=99 package shortly.

This was tricky to reproduce because it depends on what=E2=80=99s in your s=
tore
and what=E2=80=99s in /var/guix/substitute/cache.

I managed to reproduce it first in a VM following your instructions, and
then on a local instance of guix-daemon where I had wiped
/var/guix/substitute/cache and also changed the condition in
=E2=80=98http-multiple-get=E2=80=99 to exercise the =E2=80=9CConnection: cl=
ose=E2=80=9D case (which is
otherwise infrequent.)

Thanks a lot for your investigation, which helped a lot!

Ludo=E2=80=99.