Re: downgrade issue on guix system

[Alexander Asteroth]

No I did not play around with branches. What I did was
- changed my config
- reconfigured
- rebooted
- failed
- booted second last config
- fixed config
- reconfigured
- rebooted
- OK
- pulled
- added cups
- reconfigured
---->>> ERROR

I just tried again. Did a

GUIX_PROFILE="~/.guix-profile" &&      . "$GUIX_PROFILE/etc/profile"
hash guix
guix system reconfigure .../config.scm

Same error.

Is there a way to find out what goes wrong? And why I have something
installed that is newer than what I get over the guix channel?

-- Alex

On Thu, Nov 25 2021, 06:53:59, Julien Lepiller <julien@lepiller.eu> wrote:

> Hi Alexander,
>
> Since you did a guix pull, you should have a newer version of guix than you 
> had before, unless you played with branches. So the downgrade is worrying and 
> you were right to stop there.
>
> Note that running guix pull will update guix in a separate profile. Make sure 
> it's loaded: that you have ~/.config/guix/current/bin in your path and that 
> "type guix" is this path. If not, fix
> your $PATH and run "hash guix" (no output) and check again.
>
> Note that, if you're running reconfigure as root (instead as with sudo) 
> you'll need to pull and do the above as root, since each user has a different 
> guix current profile.
>
> HTH!
>
> Le 25 novembre 2021 06:38:29 GMT-05:00, Alexander Asteroth 
> <alexander.asteroth@h-brs.de> a écrit :
>
>  Dear all,
>
> I just wanted to install cups service on my guix system. I recofigured
> the system without an error one hour ago (introduced seperate home
> filesystem) and now, when I try to add the cups service (I did a guix
> pull in between as well) I get:
>
>  guix system: error: aborting reconfiguration because commit 
> bd2aa8031babdca5f574fca52e025d6794f08d82 of channel 'guix' is not a 
> descendant of
>  7f974548ac20cab88b9bb589a5e1d85ee3b8d337
> hint: Use `--allow-downgrades' to force this downgrade.
>
> I have no clue what caused that error therefor I also don't know if it's
> a good idea to allow downgrades. ... or what es to do to resolve the
> issue.
>
> Cheers,
>
> Alex

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