Hi, I really don't know much about Linux but it looks like the problem I reported has something to do with Debian?
https://unix.stackexchange.com/questions/303213/how-to-enable-user-namespaces-in-the-kernel-for-unprivileged-unshare Now, I don't use Debian at all (I use Guix System) and do you think this is a Bug in Guix (in that this Debian specific word should never even be mentioned in Guix?) To summarize this bug again: The Bug: The container command no longer works, after the commit 8bc5ca5160db3d82bd5b6b2b7ed80c96f42bd33e. guix environment -C Additional Information: Instead of working as it did until the commit, the command now dies with the following error mesage: guix environment: error: cannot create container: unprivileged user cannot create user namespaces guix environment: error: please set /proc/sys/kernel/unprivileged_userns_clone to "1" The message "please set /proc/sys/kernel/unprivileged_userns_clone to "1", seems irrelevant to Guix System users as it may only relate to Debian users. I don't know why this Debian specific message is here in the first place... Disclaimer :-): I am assuming this is indeed Debian specific (I tried to install LinuxLinux (the Guix default) but failed - my AMD graphics card won't allow me to even boot, unless I use regular Linux. ) I scanned for the phrase in LinuxLibre source code but there was no mention of it: ~/Downloads$ tar -xf linux-libre-5.9.12-gnu.tar.xz ~/Downloads$ cd linux-5.9.12/ ~/Downloads/linux-5.9.12$ rg -i unprivileged_userns_clone Just FYI: the problem phrase is indeed found in the Debian Kernel Patch: ~/co/debian$ rg -i unprivileged_userns_clone linux/debian/patches/debian/add-sysctl-to-disallow- unprivileged-CLONE_NEWUSER-by-default.patch 25:+extern int unprivileged_userns_clone; 27:+#define unprivileged_userns_clone 0 36:+ if ((clone_flags & CLONE_NEWUSER) && !unprivileged_userns_clone) 47:+ if ((unshare_flags & CLONE_NEWUSER) && !unprivileged_userns_clone) { 65:+extern int unprivileged_userns_clone; 77:+ .procname = "unprivileged_userns_clone", 78:+ .data = &unprivileged_userns_clone, 96:+int unprivileged_userns_clone; Cheers, Yasu commit 8bc5ca5160db3d82bd5b6b2b7ed80c96f42bd33eAuthor: Paul Garlick < pgarl...@tourbillion-technology.com>Date: Thu Dec 3 16:00:18 2020 +0000 linux-container: Correct test for unprivileged user namespace support. Fixes <https://bugs.gnu.org/31977>;. Reported by Paul Garlick <pgarl...@tourbillion-technology.com>. * gnu/build/linux-container.scm (unprivileged-user-namespace- supported?): Return #f when the 'userns-file' does not exist. diff --git a/gnu/build/linux-container.scm b/gnu/build/linux- container.scmindex 4a8bed5a9a..3870b50907 100644--- a/gnu/build/linux- container.scm+++ b/gnu/build/linux-container.scm@@ -44,7 +44,7 @@ (let ((userns-file "/proc/sys/kernel/unprivileged_userns_clone")) (if (file-exists? userns-file) (eqv? #\1 (call-with-input-file userns-file read- char))- #t)))+ #f))) On Sat, 2020-12-05 at 09:20 +0900, yasu wrote: > 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 describeGeneration 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
