Package: apache2 Version: 2.4.9-1 User: ubuntu-devel@lists.ubuntu.com Usertags: origin-ubuntu utopic If I install apache2 at the same time as libapache2-mod-svn, then it is possible that both packages are unpacked, but libapache2-mod-svn is configured first. In this case, /usr/share/apache2/apache2-maintscript-helper exists, so the dh-apache2 -inserted snippet in libapache2-mod-svn tries to enable the dav_svn module. This depends on the dav module, and the call to "a2enmod -m -q dav_svn" subsequently fails, causing libapache2-mod-svn to fail silently. During debugging I found that the error message was: ERROR: Module dav does not exist! ERROR: Could not enable dependency dav for dav_svn, aborting At this point, I see that /etc/apache2/mods-available/dav.load does not exist (but /etc/apache2/mods-available/dav.load.dpkg-new does exist). It seems that this is provided by the apache2 binary package, which has yet to be configured. I presume that this causes a2enmod to fail to see it. Steps to reproduce. As root on a fresh amd64 sid machine: apt-get clean apt-get install -y --download-only libapache2-mod-svn apache2 mkdir 1 2 mv /var/cache/apt/archives/*.deb 1/ mv 1/apache2_2.4.9-1_amd64.deb 1/libapache2-mod-svn_1.8.8-2_amd64.deb 2/ dpkg -i 1/* dpkg --unpack 2/* dpkg --configure libapache2-mod-svn This fails with: Setting up libapache2-mod-svn (1.8.8-2) ... dpkg: error processing package libapache2-mod-svn (--configure): subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: libapache2-mod-svn I'm not sure how best to approach this problem. Given that I am installing the packages together, I do expect dav_svn to be enabled when it is done, so simply not doing so in this case wouldn't really work. Having a2enmod special-case .dpkg-new files seems bad to me too. We can't depend on apache2 since the module providing package should be able to be installed independently. The only thing I can think of is to notice that apache2 isn't configured, and note what needs to be done later somehow, but this wouldn't be as trivial as I would like it. In Ubuntu, this is causing our subversion dep8 test to fail, since it installs libapache2-mod-svn and apache2 together. I presume this will affect Debian also. I suppose a workaround for now is to have the test install apache2 first.
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