[buildd-tools-devel] Bug#726375: [Pkg-systemd-maintainers] Bug#726375: schroot: Fails during umount on system booted with systemd

[Antonio Terceiro]

On Tue, Oct 29, 2013 at 11:01:49PM +0100, Michael Stapelberg wrote:
> Hi Daniel,
> 
> Daniel Schepler <dschepler at gmail.com> writes:
> > So, I just decided I'd try out systemd.  It booted my system without any
> > problems, but I soon discovered that the x32 buildd I'm running on it isn't
> > working properly.  For an example of what triggers build failures:
> Can you share your /etc/schroot/schroot.conf and steps needed to set up
> such an environment from scratch, if any? By just installing schroot and
> running the command you provided I get:
> 
> $ schroot -c sid-x32-sbuild -u root -d /root -- apt-get update
> W: No chroots are defined in ‘/etc/schroot/schroot.conf’ or ‘/etc/schroot/chroot.d’
> E: sid-x32-sbuild: Chroot not found

You have to create such a chroot first, for example with
sbuild-createchroot(1).

I am affected by a similar problem, which also only happens when the
system is booted with systemd (works fine under sysvinit):

$ cat /etc/schroot/chroot.d/squeeze
[squeeze]
type=directory
description=Debian Squeeze
directory=/home/terceiro/chroots/squeeze
users=terceiro
groups=terceiro
root-users=terceiro
root-groups=root
$ schroot -c squeeze
(squeeze) terceiro at homer:~$ exit
logout
E: 10mount: umount: /var/lib/schroot/mount/squeeze-78908cf6-2aca-4bf4-8209-fafe2260397f/tmp: not mounted
E: squeeze-78908cf6-2aca-4bf4-8209-fafe2260397f: Chroot setup failed: stage=setup-stop

Then I have to manually finish the session:

$ schroot -e -c squeeze-78908cf6-2aca-4bf4-8209-fafe2260397f

After that the mounts are gone.

But if I set up a union-type setting, then it works just fine:

$ echo 'union-type=aufs' | sudo su -c 'cat >> /etc/schroot/chroot.d/squeeze'
$ cat /etc/schroot/chroot.d/squeeze 
[squeeze]
type=directory
description=Debian Squeeze
directory=/home/terceiro/chroots/squeeze
users=terceiro
groups=terceiro
root-users=terceiro
root-groups=root
union-type=aufs
$ schroot -c squeeze
(squeeze) terceiro at homer:~$ exit
logout
$ 

And I confirm that this only happens when the system is booted with
systemd as init.

-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.11-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=pt_BR.utf8, LC_CTYPE=pt_BR.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages schroot depends on:
ii  libboost-filesystem1.54.0       1.54.0-3
ii  libboost-iostreams1.54.0        1.54.0-3
ii  libboost-program-options1.54.0  1.54.0-3
ii  libboost-regex1.54.0            1.54.0-3
ii  libboost-system1.54.0           1.54.0-3
ii  libc6                           2.17-93
ii  libgcc1                         1:4.8.2-1
ii  liblockdev1                     1.0.3-1.5+b1
ii  libpam0g                        1.1.3-10
ii  libstdc++6                      4.8.2-1
ii  libuuid1                        2.20.1-5.5
ii  schroot-common                  1.6.5-1

schroot recommends no packages.

Versions of packages schroot suggests:
pn  aufs-modules | unionfs-modules  <none>
ii  btrfs-tools                     0.19+20130705-3
ii  debootstrap                     1.0.55
ii  lvm2                            2.02.98-6+b1
ii  qemu-user-static                1.6.0+dfsg-2

-- no debconf information

-- 
Antonio Terceiro <terceiro at debian.org>

-- 
Antonio Terceiro <terceiro at softwarelivre.org>
http://softwarelivre.org/terceiro


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