bug#41668: Failing test: gui-installed-desktop-os-encrypted

["Ludovic Courtès" <ludo@gnu.org>]

Hi,

Mathieu Othacehe <othacehe@gnu.org> skribis:

>> * A new issue I discovered, whereby 'guix system init' try to
>> build/download stuff, when it shouldn't:
>>
>> Jun  6 11:50:06 localhost shepherd[1]: Service cow-store has been started. 
>> Jun  6 11:50:06 localhost installer[233]: running command ("guix" "system" "init" "--fallback" "--no-grafts" "--no-substitutes" "/mnt/etc/config.scm" "/mnt") 
>> Jun  6 11:50:20 localhost installer[233]: 'guix system init --fallback --no-grafts --no-substitutes /mnt/etc/config.scm /mnt' exited with status 1; output follows:    The following derivations will be bu)
>>
>> Jun  6 11:50:20 localhost 7-gzip-mesboot-1.2.4.drv      /gnu/store/zrqjn3p0x5gkdnj6qb4b9xxl2dld4fvl-gzip-1.2.4.tar.drv      /gnu/store/98g8d622pqhzl0z92y4bjcqi9yl0327x-linux-libre-headers-bootstrap-0.drv2
>> Jun  6 11:50:20 localhost g76sla-bash-mesboot-4.4.drv      /gnu/store/8yad2zhh91pnf27xkwh0kyx4ggnsn5li-bash-4.4.tar.gz.drv      /gnu/store/5vp07s0gdvrybbhcz43i58y5p03rrdsk-coreutils-mesboot-8.32.drv     k
>> Jun  6 11:50:20 localhost h6mfp7hisj118ndcp8d0wy3ca63-gmp-6.0.0a.tar.xz.drv      /gnu/store/iy7vn17sqbrgp2142px897ij0njsr5f2-gmp-6.0.0a.tar.xz.drv      /gnu/store/rxr1wc67y74bsfasln4jw8viawpa79g4-mpfr-4.0
>> Jun  6 11:50:20 localhost ilding /gnu/store/3pz8g76l2kkv36w1n7k25zlswgdyj554-Python-3.5.9.tar.xz.drv...   builder for `/gnu/store/3pz8g76l2kkv36w1n7k25zlswgdyj554-Python-3.5.9.tar.xz.drv' failed to produg
>> Jun  6 11:50:20 localhost  
>
> Ok, I think I found what's going on here. As we are now using multiple
> glibc to build locales, we need to make sure that they are all available
> in the installation closure.

Good catch!

> The attached patch fixes the issue. I will also propose a patch,
> probably on core-update, patching "invoke/quiet" so that we can have the
> output of "guix system init" in the syslog.

How did you do it in the example above?  Perhaps we can have a local
hack specifically in the installer (otherwise we’d find ourselves
duplicating syslog-related logic there.)

> Debugging (gnu tests install) module always takes me a lot of effort,
> because of all the code layers involved. I don't have much to propose to
> improve it, maybe when the CI will be more robust, we will be able to
> detect those test failures as soon as they happen.

Yeah there are two issues: (1) the installer tests are tricky to debug,
and (2) we basically don’t notice when something break.

I don’t have good ideas for (1), although I think the speedups induced
by the new image API might help.

As for (2), I think it’s kind of a problem of CI in general, connected
with the fact that we’re all somewhat busy building stuff rather than
waiting for CI notifications to act on.  :-)

That’s my impression, but I’d really like to hear from people with
experience in CI and/or the system tests.

> From 25950adfa4988c31beaeb334367337ee409868c4 Mon Sep 17 00:00:00 2001
> From: Mathieu Othacehe <othacehe@gnu.org>
> Date: Sun, 7 Jun 2020 15:39:39 +0200
> Subject: [PATCH] system: install: Add default libcs to gc-roots.
>
> During the installation, it may be needed to build locales that are not
> covered by glibc-utf8-locales. Make sure that the libraries required to build
> locales are available.
>
> This is a follow-up of 0eed77127592323d89f56c215a15374a1aaae110.
>
> * gnu/system/install.scm (installation-os)[services]: Add
> %default-locale-libcs to gc-root-service-type.

Perfect, thanks!

Ludo’.