GNU bug report logs - #36785
'sudo guix pull' failure in the profile migration code

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#36785: closed ('sudo guix pull' failure in the profile
 migration code)
Date: Thu, 19 Sep 2019 08:25:02 +0000

[Message part 1 (text/plain, inline)]

Your message dated Thu, 19 Sep 2019 10:24:18 +0200
with message-id <87lfuky9ql.fsf <at> gnu.org>
and subject line Re: bug#36785: Impossible to pull on foreign distro
has caused the debbugs.gnu.org bug report #36785,
regarding 'sudo guix pull' failure in the profile migration code
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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36785: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=36785
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From: Julien Lepiller <julien <at> lepiller.eu>
To: bug-guix <at> gnu.org
Subject: Impossible to pull on foreign distro
Date: Wed, 24 Jul 2019 16:40:42 +0200

Hi guix,

I gave a small tutorial to someone today, where we installed guix on top of a foreign distro. We used the script and everything went smoothly, and after finding out that we were going to build php (we were trying to define a VM that would serve one of their services), we tried to run guix pull:

sudo guix pull —commit=…

However the command failed immediately with:

Migrating profile generations to '/var/guix/profiles/per-user/root'...
Guix pull: error: symlink: File exists: "/var/guix/profiles/per-user/root/current-guix"

Indeed, the file exists and everything looks good. Why does guix try to migrate a profile that's already good?

I was able to work around that situation, but it's not great for our users.

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From: Ludovic Courtès <ludo <at> gnu.org>
To: Ricardo Wurmus <rekado <at> elephly.net>
Cc: 36785-done <at> debbugs.gnu.org, Julien Lepiller <julien <at> lepiller.eu>
Subject: Re: bug#36785: Impossible to pull on foreign distro
Date: Thu, 19 Sep 2019 10:24:18 +0200

Hi,

Ricardo Wurmus <rekado <at> elephly.net> skribis:

> Ludovic Courtès <ludo <at> gnu.org> writes:

[...]

>> We could apply the patch I posted earlier, which simply disables profile
>> migration when SUDO_USER is set.  That won’t address the fact that root
>> writes to the user’s ~/.cache, but there’s not much we can do here.
>
> This sounds fine to me.

I went ahead and pushed that as
ee25048e51dd45ad91a1ad4b0f25f4013843c52b.

Thanks,
Ludo’.

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