bug#31581: `guix system` requires guile-json?

[Ludovic Courtès]

Hello,

Leo Famulari <address@hidden> skribis:

> Sometime in the past couple months, `./pre-inst-env guix system` stopped
> working for me on distros besides GuixSD. It fails with 'guix: system:
> command not found'.
>
> Using the installed Guix, without pre-inst-env, still works.
>
> ------
> $ ./pre-inst-env guix system vm foo.scm                      
> guix: system: command not found                    
> Try `guix --help' for more information.
> ------
>
> I used my trusty strace and found that it fails when it can't find
> (json). So, I installed guile-json, and now things are good.
>
> I wonder if this can be improved for users on foreign distros.
>
> The manual suggests that the JSON module is required for some of the
> importers, but not for `guix system`. But I see that it is used in (gnu
> system vm (system-docker-image)).

Oh indeed, that’s a recent regression.  Fixed in
201f2c87693f0f26bb8d00dedc49060d5da43e1f.

Thanks!

Ludo’.