Hi Pj, Thank you for you reply (and your wonderful Hacking Guide https://gitlab.com/pjotrp/guix-notes/blob/master/HACKING.org)! I tried the command and it didn't work... I use Guix System (not a foreign distribution) as described at the bottom :-) -Yasu On Fri, 2020-12-04 at 19:55 +0100, Pjotr Prins wrote: > On Fri, Dec 04, 2020 at 05:32:08PM +0100, zimoun wrote: > > Have you tried to do the recommandation? > > > > please set /proc/sys/kernel/unprivileged_userns_clone to "1" > > As root: > > echo 1 > /proc/sys/kernel/unprivileged_userns_clone > > Yes, it is common on Debian and such. > > Pj. root@guix ~# echo 1 > /proc/sys/kernel/unprivileged_userns_clone -bash: /proc/sys/kernel/unprivileged_userns_clone: No such file or directory root@guix ~# guix system describe Generation 5631 Dec 05 2020 09:09:16 (current) file name: /var/guix/profiles/system-5631-link canonical file name: /gnu/store/qqzk4kvrhxjcia3hcq3xqrcdi36azzz9- system label: GNU with Linux 5.9.12 bootloader: grub-efi root device: label: "my-root" kernel: /gnu/store/9a93vpq4aa1c3adiaaa3blwc18r9r7zz-linux- 5.9.12/bzImage channels: guix: repository URL: https://git.savannah.gnu.org/git/guix.git branch: master commit: 86d635b85035086d21c319f31f628761df5c82e5 nonguix: repository URL: https://gitlab.com/nonguix/nonguix branch: master commit: b08ea529d4d36468b20ef4aff6dc87b3de0eff70 guix-chromium: repository URL: https://gitlab.com/mbakke/guix-chromium.git branch: master commit: 2de450b92e5f2624d4f964407686934e22239f7b configuration file: /gnu/store/hlma107m2004g6qq00ihm190am5mh9z0- configuration.scm