Thanks for reporting this bug. I can't reproduce it on a new trusty VM.
The package versions don't quite seem to make sense. Current package versions are: cgroup-lite | 1.1 | precise | source cgroup-lite | 1.1.5 | precise-updates | source cgroup-lite | 1.9 | trusty | source cgroup-lite | 1.10 | vivid/universe | source cgroup-lite | 1.10 | wily/universe | source But your log shows an attempt to replace 1.8, which no longer exists, with 1.9. It also shows upstart wasn't responding. Have you manually installed systemd? What is your current version as reported in /etc/*-release? Is it still 14.04? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cgroup-lite in Ubuntu. https://bugs.launchpad.net/bugs/1480742 Title: package cgroup-lite 1.9 failed to install/upgrade: subprocess installed post-installation script returned error exit status 100 Status in cgroup-lite package in Ubuntu: New Bug description: I ran do-release-update and it failed only on this step. ProblemType: Package DistroRelease: Ubuntu 14.04 Package: cgroup-lite 1.9 ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8 Uname: Linux 3.8.0-19-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.11 Architecture: amd64 Date: Mon Aug 3 01:35:38 2015 DuplicateSignature: package:cgroup-lite:1.9:subprocess installed post-installation script returned error exit status 100 Ec2AMI: ami-d383af96 Ec2AMIManifest: (unknown) Ec2AvailabilityZone: us-west-1c Ec2InstanceType: t1.micro Ec2Kernel: aki-f77e26b2 Ec2Ramdisk: unavailable ErrorMessage: subprocess installed post-installation script returned error exit status 100 PackageArchitecture: all SourcePackage: cgroup-lite Title: package cgroup-lite 1.9 failed to install/upgrade: subprocess installed post-installation script returned error exit status 100 UpgradeStatus: Upgraded to trusty on 2015-08-03 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cgroup-lite/+bug/1480742/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp