Messages in this thread | | | From | Richard Weinberger <> | Date | Wed, 14 Feb 2018 12:30:18 +0100 | Subject | Re: plan9 semantics on Linux - mount namespaces |
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On Wed, Feb 14, 2018 at 12:27 PM, Enrico Weigelt <lkml@metux.net> wrote: > On 14.02.2018 11:24, Aleksa Sarai wrote: > >> What distribution are you using and which release? > > > On a self-compiled system. > > Forgot to enable namespaces in the kernel. Now it seems to work > as root, but not as an unprivileged user: > > > daemon@alphabox:~ unshare -r -U > unshare: can't open '/proc/self/setgroups': Permission denied > daemon@alphabox:~ unshare -f -r -U > unshare: can't open '/proc/self/setgroups': Permission denied >
Please read http://man7.org/linux/man-pages/man7/user_namespaces.7.html setgroups is a corner case and needs special care.
-- Thanks, //richard
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