Ricardo Wurmus <rek...@elephly.net> skribis:

> Marek Felšöci <marek.fels...@lip6.fr> writes:
>
>> I get an access denied error on the ".guix/channels.scm" file which I
>> own and have access to.
>>
>> I tried to play around with the AppArmor profile, but with no
>> success. Are we still missing something?
>
> Do you see any relevant information in the AppArmor logs?

I actually have a similar error:

--8<---------------cut here---------------start------------->8---
$ guix time-machine -- shell -C hello
guix time-machine: error: failed to load '/builds/.config/guix/channels.scm': 
Permission denied
$ sudo dmesg | tail -4
[489967.069070] audit: type=1400 audit(1737015245.640:166): apparmor="DENIED" 
operation="open" class="file" profile="guix-shell" 
name="/builds/.config/guix/channels.scm" pid=16585 comm="guix" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=1000
[489967.069236] audit: type=1400 audit(1737015245.640:167): apparmor="DENIED" 
operation="open" class="file" profile="guix-shell" 
name="/builds/.config/guix/channels.scm" pid=16585 comm="guix" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=1000
[490011.443246] audit: type=1400 audit(1737015290.015:168): apparmor="DENIED" 
operation="open" class="file" profile="guix-shell" 
name="/builds/.config/guix/channels.scm" pid=16597 comm="guix" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=1000
[490011.443371] audit: type=1400 audit(1737015290.015:169): apparmor="DENIED" 
operation="open" class="file" profile="guix-shell" 
name="/builds/.config/guix/channels.scm" pid=16597 comm="guix" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=1000
$ ls -l /builds/.config/guix/channels.scm
-rw-rw-r-- 1 ci ci 147 Dec 27 11:28 /builds/.config/guix/channels.scm
$ id
uid=1000(ci) gid=1000(ci) groups=1000(ci)
--8<---------------cut here---------------end--------------->8---

I think the problem we have is that the AppArmor profile now applies to
all ‘guix’ invocations but it doesn’t specify that ‘guix’ can access
user-owned files.  I guess I did something wrong because that means that
this profile is in fact more restrictive than the default one.

Is there a way to say we want to inherit the default profile and only
relax it?

Ludo’.



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