From: ludo@gnu.org (Ludovic Courtès)
To: Walter Franzini <walter.franzini@gmail.com>
Cc: guix-devel@gnu.org
Subject: Re: gnu-system-demo feedback
Date: Wed, 16 Oct 2013 15:12:08 +0200 [thread overview]
Message-ID: <87k3hdgy1j.fsf@gnu.org> (raw)
In-Reply-To: <87k3hfipf8.fsf@gnu.org> ("Ludovic \=\?utf-8\?Q\?Court\=C3\=A8s\=22'\?\= \=\?utf-8\?Q\?s\?\= message of "Mon, 14 Oct 2013 22:10:51 +0200")
ludo@gnu.org (Ludovic Courtès) skribis:
> Walter Franzini <walter.franzini@gmail.com> skribis:
>
>> On Mon, Oct 14 2013, Ludovic Courtès wrote:
>>
>> [...]
>>
>>>> 3. running guix gc as root empties /etc (broken symlinks)
>>>> 4. running guix gc as guest (!) empties /etc (broken symlinks)
>>>
>>> A bug: I forgot to register them as GC roots (see gnu/system/vm.scm.)
>>
>> Ok for the bug about GC roots, but I expected a 'guest' not to be able
>> to alter the system state (/etc).
>
> Unprivileged users can access the store via the daemon. Notably, they
> can run the GC.
>
> The GC only ever deletes files that are no longer referenced. These
> /etc files were clearly still referenced, but the GC just didn’t know
> about it.
I probably wasn’t clear. The GC only takes care of files under
/nix/store, and it cannot remove anything outside of that directory.
The files in /etc are symlinks to files under /nix/store, and it’s those
files that were removed. The symlinks were still there, just dangling.
Ludo’.
next prev parent reply other threads:[~2013-10-16 13:17 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-12 21:36 gnu-system-demo feedback Walter Franzini
2013-10-14 12:45 ` Ludovic Courtès
2013-10-14 16:20 ` Walter Franzini
2013-10-14 20:10 ` Ludovic Courtès
2013-10-16 13:12 ` Ludovic Courtès [this message]
2013-10-16 16:12 ` Walter Franzini
2013-10-16 16:57 ` Ludovic Courtès
-- strict thread matches above, loose matches on Subject: below --
2013-10-13 18:43 Walter Franzini
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