GNU bug report logs - #64014
'guix pack -R' breaks bubblewrap

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From: Ludovic Courtès <ludo <at> gnu.org>
To: André A. Gomes <andremegafone <at> gmail.com>
Cc: 64014 <at> debbugs.gnu.org
Subject: bug#64014: guix pack regression 
Date: Thu, 15 Jun 2023 17:57:19 +0200

Hi,

André A. Gomes <andremegafone <at> gmail.com> skribis:

> I've produced a guix pack with the same command that I've always used
> (which includes passing the -RR flag), but I now get the following
> message:
>
> bwrap: No permissions to creating new namespace, likely because the kernel does not allow non-privileged user namespaces. On e.g. debian this can be enabled with 'sysctl kernel.unprivileged_userns_clone=1'.

This message is apparently from bubblewrap, not from Guix.

I suppose you might get this is you do ‘guix pack -R bubblewrap’ and
then try to run ‘bwrap’ from that pack: the ‘bwrap’ executable already
runs in a separate user namespace and might be unable to create one (?).

HTH,
Ludo’.

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