On Mon, Apr 15, 2013 at 10:35:22AM +0200, Petter Reinholdtsen wrote: > The jenkins chroot upgrade testing discovered this problem. The > upgrades of several test configurations fail with this message: > > E: Couldn't configure pre-depend xml-core for docbook-xml, probably a > dependency cycle. > > The test configurations > chroot-installation_squeeze_install_kde_upgrade_to_wheezy, > chroot-installation_squeeze_install_full_desktop_upgrade_to_wheezy and > chroot-installation_squeeze_install_kde-full_upgrade_to_wheezy all fail > with this error message. > > The problem started 2013-04-08 around noon, and the test around noon the > previous day was OK, so I guess the change triggering this problem was > introduced that day.
Adam D. Barratt noticed that this coincides with the testing migration of sgml-base. That migration adds a versioned Pre-Dependency from sgml-base to wheezy's dpkg. > I notice that docbook-xml did not change in this period, but neither did > xml-core, and thus I am not quite sure which package to atribute the > problem to. Thus I just pick the one that fail to upgrade according to > apt-get, and hope someone else is able to figure out exactly what is > wrong. > > Is docbook-xml involved in some (pre-)dependency loop? > > The failing tests can be reviewed on <URL: http://jenkins.debian.net/ >. > > Setting severity to serious, as this block upgrade from squeeze to > wheezy for normal KDE desktop users. Note that chroot-installation_squeeze_install_developer_upgrade_to_wheezy does not fail even though it includes docbook-xml. So the issue is more involved. Even adding the reverse dependency kdoctools of docbook-xml is not enough. Note that dpkg has a Pre-Dependency on liblzma5 that causes it to be upgraded and pulls in multiarch-support forcing a glibc upgrade. To potential bug squashers with more bandwidth and diskspace than me: Reducing the set of packages that cause this failure would be great. To that end I would like to know whether the error also shows when doing a simulated dist-upgrade. That means adding a "-s" to "apt-get -y dist-upgrade". That way downloading of the wheezy packages could be avoided. >From there successive removal of packages can be used to reduce the involved package set. Helmut -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
