Christian, I finally found how to properly test the upgrade with the -proposed package (see the updated test case).
** Description changed: [Impact] Users with pptpd will encounter errors when upgrading from 14.04->16.04. After the upgrade process, pptpd won't automatically start on boot. [Test case] 1. Setup a Trusty container lxc launch ubuntu-daily:trusty foo 2. Install pptpd lxc exec foo /bin/bash apt-get install -y pptpd 3. Upgrade to Xenial lxc exec foo /bin/bash # make do-release-upgrade happy script -c "/bin/bash -l" /dev/null chmod 777 /var/run/screen do-release-upgrade 4. Notice that pptpd fails to install properly and apport is invoked - The fix is hard to confirm properly until the debdiff lands into xenial- - updates. Until then, broken Xenial upgrades can be fixed by enabling - xenial-proposed and upgrading pptpd to 1.4.0-7ubuntu0.2. + To confirm the fix, enable trusty-proposed before running the "do- + release-upgrade". This will pull pptpd 1.4.0-7ubuntu0.2 from xenial- + proposed and should let the upgrade complete successfully. [Regression potential] Risks of regressions should be minimal since the fix have been included in Yakkety and Debian already. Worst case, users will still need to manually start the pptpd service on boot. [Original issue description] This is one of the crashed that happened during upgrade to 16.04 LTS. The install routine was exited with a script error. Try to figure stuff of since pptpd seems to be outdated ProblemType: Package DistroRelease: Ubuntu 16.04 Package: pptpd 1.4.0-7ubuntu0.1 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic i686 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: i386 Date: Fri Aug 5 21:40:28 2016 ErrorMessage: subprocess installed post-installation script returned error exit status 1 InstallationDate: Installed on 2011-02-25 (1988 days ago) InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release i386 (20100816.1) RelatedPackageVersions: dpkg 1.18.4ubuntu1.1 apt 1.2.12~ubuntu16.04.1 SourcePackage: pptpd Title: package pptpd 1.4.0-7ubuntu0.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 UpgradeStatus: Upgraded to xenial on 2016-08-05 (0 days ago) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1610500 Title: package pptpd 1.4.0-7ubuntu0.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pptpd/+bug/1610500/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
