Thank you for taking the time to report this bug and helping to make Ubuntu better.
It looks like you're using a version of haproxy from a PPA, rather than the package shipped with Ubuntu? In this case we can't treat this as a bug in Ubuntu, so I'm marking this bug filed against haproxy in Ubuntu as Invalid. You may be able to find pointers to get help for this sort of problem here: http://www.ubuntu.com/support/community Or if you believe that this is really a bug in Ubuntu, then you may find it helpful to read "How to report bugs effectively" http://www.chiark.greenend.org.uk/~sgtatham/bugs.html. We'd be grateful if you would then provide a more complete description of the problem, explain why you believe this is a bug in Ubuntu rather than a problem specific to your system, and then change the bug status back to New. ** Changed in: haproxy (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu High Availability Team, which is subscribed to haproxy in Ubuntu. https://bugs.launchpad.net/bugs/1531322 Title: package haproxy 1.5.15-1ppa1~wily failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 Status in haproxy package in Ubuntu: Invalid Bug description: Downgrade haproxy 1.6 to 1.5.15 reports that it failed on reboot of machine. But in fact, it worked. ProblemType: Package DistroRelease: Ubuntu 16.04 Package: haproxy 1.5.15-1ppa1~wily ProcVersionSignature: Ubuntu 3.16.0-57.77~14.04.1-generic 3.16.7-ckt20 Uname: Linux 3.16.0-57-generic x86_64 ApportVersion: 2.19.3-0ubuntu2 Architecture: amd64 Date: Tue Jan 5 09:55:53 2016 DuplicateSignature: Installing new version of config file /etc/init.d/haproxy ... Job for haproxy.service failed because the control process exited with error code. See "systemctl status haproxy.service" and "journalctl -xe" for details. invoke-rc.d: initscript haproxy, action "start" failed. dpkg: error processing package haproxy (--configure): subprocess installed post-installation script returned error exit status 1 ErrorMessage: subprocess installed post-installation script returned error exit status 1 InstallationDate: Installed on 2015-07-08 (181 days ago) InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1) RelatedPackageVersions: dpkg 1.18.3ubuntu1 apt 1.1.10 SourcePackage: haproxy Title: package haproxy 1.5.15-1ppa1~wily failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 UpgradeStatus: Upgraded to xenial on 2015-12-22 (14 days ago) modified.conffile..etc.haproxy.haproxy.cfg: [modified] mtime.conffile..etc.haproxy.haproxy.cfg: 2016-01-05T11:04:22.198685 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/haproxy/+bug/1531322/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-ha Post to : ubuntu-ha@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-ha More help : https://help.launchpad.net/ListHelp