[buildd-tools-devel] Bug#821442: schroot: operation not permitted (only with 4.5 kernel)

[James McCoy]

On Mon, Apr 18, 2016 at 02:14:58PM -0400, Barry Warsaw wrote:
> With today's dist-upgrade, I am unable to enter an existing or newly
> created chroot, nor am I able to sbuild or adt-run with the chroot.
> 
> I had an existing sid-amd64 chroot which I could not enter.  I then
> removed the chroot and recreated it with mk-sbuild.  Now I get:
> 
> % schroot -u root -c sid-amd64
> E: 15binfmt: update-binfmts: unable to open
> /var/run/schroot/mount/sid-amd64-98db94f4-3bc6-4948-95a6-57a8e986bba9/bin/sh:
> Operation not permitted
> E: 20copyfiles: cp: cannot create regular file
> '/var/run/schroot/mount/sid-amd64-98db94f4-3bc6-4948-95a6-57a8e986bba9/etc/resolv.conf':
> Operation not permitted
> E: 15binfmt: update-binfmts: unable to open
> /var/run/schroot/mount/sid-amd64-98db94f4-3bc6-4948-95a6-57a8e986bba9/bin/sh:
> Operation not permitted
> E: sid-amd64-98db94f4-3bc6-4948-95a6-57a8e986bba9: Chroot setup
> failed: stage=setup-start

I've been seeing something similar.  Am I right to assume that these are
union-type=overlay?  If so, this seems to be a change in the kernel.

Running linux-image-4.5.0-1-amd64, I see various failures using overlay
but rebooting into linux-image-4.4.0-1-amd64 I am again able to use
schroot/sbuild.

Cheers,
-- 
James
GPG Key: 4096R/331BA3DB 2011-12-05 James McCoy <jamessan at debian.org>