On Thu, Jun 09, 2016 at 12:56:55PM -0700, Mike Wright wrote: > On 06/09/2016 12:40 PM, Stéphane Graber wrote: > >Sounds like your host /proc is over-mounted which triggers a protection > >mechanism in the kernel that prevents an unprivileged user from mounting > >it. > > > >Look in your host's /proc/mounts for any mountpoint under /proc, try > >unmounting them one by one until you find the one that's triggering the > >protection. > > Thanks Stéphane, > > Here's what's there: > > grep proc /proc/mounts: > > proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0 > > systemd-1 /proc/sys/fs/binfmt_misc autofs > rw,relatime,fd=36,pgrp=1,timeout=0,minproto=5,maxproto=5,direct 0 0 > > xenfs /proc/xen xenfs rw,relatime 0 0 > > I don't think I can safely remove any of those. Any other ideas?
I don't expect either of use to be in active constant use, so you can still try unmounting them temporarily. An alternative is to mount /proc somewhere else on the host where it's not hidden by those mounts. For example: - mkdir /mnt/proc - mount -t proc proc /mnt/proc -- Stéphane Graber Ubuntu developer http://www.ubuntu.com
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