[buildd-tools-devel] Bug#586333: mount /var/run/gdm3 by default (?)

[Stefano Zacchiroli]

Package: schroot
Version: 1.4.4-1
Severity: wishlist

I've recently switched from gdm to gdm3, and I've just discovered that such a
switch inhibits seamless usage of X11 apps from schroot-managed chroots
(usually using "schroot -p ...").

I'm using the above to run 32bits apps on my 64bits machine, which I believe is
a fairly common use case.

A straightforward "schroot -p COMMAND" no longer works because with gdm3 the
authority file is now located under /var/run/gdm3/, which is not mounted by
schroot setup/exec scripts. I believe that without gdm3 that still works, as
probably the authoritfy file was elsewhere before, in a directory mounted by
those scripts (I don't have easy access to a non-gdm3 machine right now, so I
haven't been able to test that though).

The "fix" is straightforward, it's enough to add the following line to
/etc/schroot/default/fstab:

  /var/run/gdm3	/var/run/gdm3	none	rw,bind		0	0

I've no idea whether you might want to do that or not in the default schroot
configuration, but I presume that using gdm3 will become quite common in the
future. So, if you don't want to do that, you might want to document it in
README.Debian or in some other FAQ-ish place as a common gotcha.

Many thanks for maintaining and developing schroot!
Cheers.

-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-5-amd64 (SMP w/2 CPU cores)
Locale: LANG=it_IT.utf8, LC_CTYPE=it_IT.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages schroot depends on:
ii  libboost-filesystem1.42.0     1.42.0-3   filesystem operations (portable pa
ii  libboost-program-options1.42. 1.42.0-3   program options library for C++
ii  libboost-regex1.42.0          1.42.0-3   regular expression library for C++
ii  libboost-system1.42.0         1.42.0-3   Operating system (e.g. diagnostics
ii  libc6                         2.11.2-1   Embedded GNU C Library: Shared lib
ii  libgcc1                       1:4.4.4-5  GCC support library
ii  liblockdev1                   1.0.3-1.4  Run-time shared library for lockin
ii  libpam0g                      1.1.1-3    Pluggable Authentication Modules l
ii  libstdc++6                    4.4.4-5    The GNU Standard C++ Library v3
ii  libuuid1                      2.17.2-3   Universally Unique ID library
ii  schroot-common                1.4.4-1    common files for schroot

schroot recommends no packages.

Versions of packages schroot suggests:
pn  aufs-modules | unionfs-module <none>     (no description available)
ii  debootstrap                   1.0.23     Bootstrap a basic Debian system
ii  lvm2                          2.02.66-1  The Linux Logical Volume Manager
ii  unzip                         6.0-4      De-archiver for .zip files

-- Configuration Files:
/etc/schroot/default/fstab changed:
proc		/proc		proc	defaults	0	0
/dev/pts	/dev/pts	none	rw,bind		0	0
/dev/shm	/dev/shm	none	rw,bind		0	0
/home		/home		none	rw,bind		0	0
/tmp		/tmp		none	rw,bind		0	0
/var/run/gdm3	/var/run/gdm3	none	rw,bind		0	0

/etc/schroot/schroot.conf changed:
[sid32]
type=directory
description=Debian Sid i386 (sid32)
directory=/srv/chroot/sid-ia32/
priority=3
groups=sbuild
root-groups=sbuild
personality=linux32
[cowbuilder]
type=directory
description=Debian Sid by cowbuilder
directory=/srv/debian/pbuilder/base.cow/
priority=3
groups=sbuild
root-groups=sbuild
[cowlenny]
type=directory
description=Debian Sid by cowbuilder
directory=/srv/debian/pbuilder/lenny.cow/
priority=3
groups=sbuild
root-groups=sbuild
[cowetch]
type=directory
description=Debian Etch by cowbuilder
directory=/srv/debian/pbuilder/etch.cow/
priority=3
groups=sbuild
root-groups=sbuild
[python26]
type=directory
description=Debian Sid + experimental for Python 2.6 transition builds
directory=/srv/debian/pbuilder/python26.cow/
priority=3
groups=sbuild
root-groups=sbuild


-- no debconf information