GNU bug report logs - #47748
Packages which cant be find/removed by guix remove

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From: bo0od <bo0od <at> riseup.net>
To: Julien Lepiller <julien <at> lepiller.eu>
Cc: 47748 <at> debbugs.gnu.org
Subject: bug#47748: Packages which cant be find/removed by guix remove
Date: Wed, 14 Apr 2021 16:31:31 +0000

> In particular, there are multiple
> profiles, and each of them could contain avahi or a reference to avahi.

That doesnt address the issue im talking about, why guix remove doesnt 
recognize the package that number 1 , number 2 if the package will break 
something important guix should say that after processing the command 
guix remove x package then show warning message this x package is 
dependency of xyz which might break your system would you like to 
proceed?  <- something like that.

> Second, your operating-system declaration apparently is running
> the avahi server. Since you didn't share it, I don't know if it comes
> from a service dependency or if it's declared explicitely

do you mean config.scm? if you need something type the command or where 
and i will bring it to you.


> When you run "guix remove" as user, it only affects your user profile,
> in which there is no avahi or wpa-supplicant package. Also note that, if
> any of your user's profile had a dependency on avahi, "guix remove
> avahi" would not have any effect on it either, because it's not
> installed explicitely, it's only present in the store to satisfy a
> dependency.

You dont consider that an issue when someone use guix remove x then ops 
guess what nothing indicate something can be done, and guess what no 
error message gonna tell you what the hell going on. Least can be said 
about this bad usability.

> I hope this is helpful :)

Appreciated :)

Julien Lepiller:
> Le Tue, 13 Apr 2021 12:46:19 +0000,
> bo0od <bo0od <at> riseup.net> a écrit :
> 
>> Hi There,
>>
>> I saw some packages installed by default with guix like
>> wpa-supplicant and avahi..., But if i type 'guix remove av' and i
>> press tab nothing will complete the word and if i type 'guix remove
>> avahi' or 'guix remove wpa-supplicant' ... just give error message.
>> (check the uploaded txt file)
> 
> Guix has a different notion of "installed" and "not installed" from
> other distros because of its model (and because it lets us use (but not
> "install") incompatible packages). In particular, there are multiple
> profiles, and each of them could contain avahi or a reference to avahi.
> In your case, I think avahi comes from two places:
> 
> First, guix itself depends on guile-avahi, which brings in avahi.
> That's because substitution can use avahi to get substitutes from your
> local network.
> 
> Second, your operating-system declaration apparently is running
> the avahi server. Since you didn't share it, I don't know if it comes
> from a service dependency or if it's declared explicitely, but if you
> don't want it to be running, that's where you'd remove it (either
> remove the explicit service, or the dependent service (guix publish?))
> 
> Avahi is added by the installer if you enable "Substitute server
> discovery" in the installer.
> 
> Similarly, wpa-supplicant is probably part of another profile, or maybe
> declared in your config.scm. Once you change it, you should reconfigure
> (guix system reconfigure /etc/config.scm). This will not remove files
> from the store, until you run guix gc.
> 
> When you run "guix remove" as user, it only affects your user profile,
> in which there is no avahi or wpa-supplicant package. Also note that, if
> any of your user's profile had a dependency on avahi, "guix remove
> avahi" would not have any effect on it either, because it's not
> installed explicitely, it's only present in the store to satisfy a
> dependency.
> 
> You can find out about these dependencies with guix graph, for instance:
> 
> guix graph -t references --path `readlink -f \
>    $HOME/.config/guix/current` `guix build avahi`
> 
> /gnu/store/9yvb5kknnq8b1mrfsqaggrgjifk2mgs4-profile
> /gnu/store/dy46rf8aknz4im7sjz89i9b7snqi1m8w-guix-f91e1046c
> /gnu/store/szyzmhsxckvb0h7pdh9ags9apd1sch7m-guix-command
> /gnu/store/zjpqr7m6j3cjk5l2sr81yxyg5ny4njy6-guix-module-union
> /gnu/store/jawdw5ca459z8y3a6hcd5pd772zjrs93-guile-avahi-0.4.0-1.6d43caf
> /gnu/store/gj0irsda1y0msawq8g1wfcgw7xcsxz2m-avahi-0.8
> 
> I hope this is helpful :)
> 

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