Re: guix pull: error: symlink: File exists

[Jimmy Thrasibule]

I tried some actions and here is what happening:


    # ls -l .config/guix/
    total 0
    lrwxrwxrwx    1 root     root            45 Jan 19 18:33 current ->
/var/guix/profiles/per-user/root/current-guix
    # guix pull
    Migrating profile generations to '/var/guix/profiles/default'...
    Updating channel 'guix' from Git repository at '
https://git.savannah.gnu.org/git/guix.git'...
    [...]


When ``.config/guix/current`` is pointing to
``/var/guix/profiles/per-user/root/current-guix``, the ``guix pull``
command will change the link to `` /var/guix/profiles/default`` or the
other way arround.

Calling ``guix pull`` again will fail:


    # ls -l .config/guix/
    total 0
    lrwxrwxrwx    1 root     root            39 Jan 19 18:37 current ->
/var/guix/profiles/default/current-guix
    # guix pull
    Migrating profile generations to '/var/guix/profiles/per-user/root'...
    guix pull: error: symlink: File exists:
"/var/guix/profiles/per-user/root/current-guix"


The workaround is to link back the profile to ``per-user/root`` and delete
``/var/guix/profiles/default/current-guix*``.

It is not clear why Guix is constantly swapping the profiles this way.

Le sam. 18 janv. 2020 à 22:11, Jimmy Thrasibule <address@hidden>
a écrit :

> Hi,
>
> I'm working on an Alpine Docker image with the Guix package manager [1].
> The container is building and can run Guix without the ``--privileged``
> option.
>
> The installation process is based on the documentation and the
> installation script [2]. Everything is working fine however, when I run
> ``guix pull`` in the generated image, I got the following error:
>
>
>     Migrating profile generations to '/var/guix/profiles/per-user/root'...
>     guix pull: error: symlink: File exists: "
> /var/guix/profiles/per-user/root/current-guix"
>
>
> This issue has already been discussed at [3] but the workaround to delete
> all the links in the directory ``/var/guix/profiles/per-user/root`` is
> causing some troubles:
>
> 1. If I want to ship a ready to use image and delete the links upfront,
> ``guix daemon`` will fail to start since ``/root/.config/guix/current`` is
> broken.
> 2. Users of the image can delete the links themselves but this is not
> really friendly.
>
> So what is exactly causing this error and what would be a good option to
> fix it?
>
>
> [1] https://hub.docker.com/repository/docker/x237net/alpine-guix
> [2] https://git.savannah.gnu.org/cgit/guix.git/plain/etc/guix-install.sh
> [3] https://lists.gnu.org/archive/html/help-guix/2018-12/msg00098.html
>
>