[Pkg-xen-devel] Bug#476366: xen-utils-3.2-1: pygrub cannot read ext3 files systems with 256 byte inodes

[Ian Campbell]

Package: xen-utils-3.2-1
Version: 3.2.0-4
Severity: important
Tags: patch

pygrub uses tools/libfsimage to read a guest filesystem. Unfortunately
the grub derived code does not support 256 byte inodes. Grub itself has
been patched (see #463236 and #463123) and this patch has now been
applied to the upstream Xen tree. See
<http://xenbits.xensource.com/staging/xen-unstable.hg?rev/c777e572a467> and attached.

However -- I would recommend that pygrub in Debian should be using the
e2fslibs based backend rather than the grub derived code since
this library is a much more canonical implementation of userspace
ext2/3 and is likely to support newer features more reliably.

This can be achieved with a build-dependency on e2fslibs-dev which will
cause this alternative code to be built. Patch is attached.

If you do not wish to go down this path then I would recommend either
adding a build-conflicts (if such a thing exists) or patching
tools/libfsimage/Makefile to always select the grub code otherwise you
run the risk of the selection changing randomly depending on buildd
configuration.

Two patches are attached -- I guess you want one or the other.

Cheers,
Ian.

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

Kernel: Linux 2.6.18.8-xen (SMP w/1 CPU core)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages xen-utils-3.2-1 depends on:
ii  iproute                20080108-1        Professional tools to control the 
ii  libc6                  2.7-10            GNU C Library: Shared libraries
ii  libncurses5            5.6+20080405-1    Shared libraries for terminal hand
ii  libsdl1.2debian        1.2.13-2          Simple DirectMedia Layer
ii  libssl0.9.8            0.9.8g-8          SSL shared libraries
ii  libxenstore3.0         3.2.0-4           Xenstore communications library fo
ii  python                 2.4.4-2           An interactive high-level object-o
ii  python-central         0.6.2             register and build utility for Pyt
ii  udev                   0.114-2           /dev/ and hotplug management daemo
ii  xen-utils-common       3.2.0-2           XEN administrative tools - common 
ii  zlib1g                 1:1.2.3.3.dfsg-12 compression library - runtime

Versions of packages xen-utils-3.2-1 recommends:
ii  bridge-utils                  1.4-1      Utilities for configuring the Linu
ii  xen-hypervisor-3.2-1-amd64 [x 3.2.0-4    The Xen Hypervisor on AMD64

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Index: xen-3/debian/templates/control.source.in
===================================================================
--- xen-3/debian/templates/control.source.in	(revision 545)
+++ xen-3/debian/templates/control.source.in	(working copy)
@@ -3,7 +3,7 @@
 Priority: extra
 Maintainer: Debian Xen Team <pkg-xen-devel at lists.alioth.debian.org>
 Uploaders: Julien Danjou <acid at debian.org>, Jeremy T. Bouse <jbouse at debian.org>, Guido Trotter <ultrotter at debian.org>, Bastian Blank <waldi at debian.org>
-Build-Depends: debhelper (>= 5.0.37.2), python-dev (>= 2.3), libsdl1.2-dev, bcc, lsb-release, python-central (>= 0.5), quilt, zlib1g-dev, libjpeg-dev, libncurses5-dev, libssl-dev, libvncserver-dev, gcc-multilib [amd64]
+Build-Depends: debhelper (>= 5.0.37.2), python-dev (>= 2.3), libsdl1.2-dev, bcc, lsb-release, python-central (>= 0.5), quilt, zlib1g-dev, libjpeg-dev, libncurses5-dev, libssl-dev, libvncserver-dev, gcc-multilib [amd64], e2fslibs-dev
 Build-Depends-Indep: graphviz, gs-common, texlive-fonts-recommended, texlive-latex-recommended
 Standards-Version: 3.7.2.0
 XS-Python-Version: current