I had the same problem while upgrading from 15.04 to 15.10 today. I had 1 ppa installed on this system (ppa:ubuntu-lxc/stable) which I reverted before doing the upgrade using the ppa-purge tool. After purging this ppa from my system, I proceeded with the upgrade and it failed like this bug report mention.
As for the 2 commands they return both the same thing (note that I run these 2 commands after having done "sudo apt update; sudo apt upgrade" which seems to have fixed the lxc and lxc-template set up): $ sudo systemctl status lxc ● lxc.service - LXC Container Initialization and Autoboot Code Loaded: loaded (/lib/systemd/system/lxc.service; enabled; vendor preset: enabled) Active: active (exited) since Thu 2015-10-01 19:11:26 CEST; 2h 39min ago Main PID: 27092 (code=exited, status=0/SUCCESS) Oct 01 19:11:26 ubuntu systemd[1]: Starting LXC Container Initialization and Autoboot Code... Oct 01 19:11:26 ubuntu lxc-devsetup[27076]: /dev is devtmpfs Oct 01 19:11:26 ubuntu systemd[1]: Started LXC Container Initialization and Autoboot Code. Oct 01 19:11:27 ubuntu systemd[1]: Started LXC Container Initialization and Autoboot Code. $ sudo service lxc status ● lxc.service - LXC Container Initialization and Autoboot Code Loaded: loaded (/lib/systemd/system/lxc.service; enabled; vendor preset: enabled) Active: active (exited) since Thu 2015-10-01 19:11:26 CEST; 2h 40min ago Main PID: 27092 (code=exited, status=0/SUCCESS) Oct 01 19:11:26 ubuntu systemd[1]: Starting LXC Container Initialization and Autoboot Code... Oct 01 19:11:26 ubuntu lxc-devsetup[27076]: /dev is devtmpfs Oct 01 19:11:26 ubuntu systemd[1]: Started LXC Container Initialization and Autoboot Code. Oct 01 19:11:27 ubuntu systemd[1]: Started LXC Container Initialization and Autoboot Code. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/1490110 Title: package lxc 1.1.3-0ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 100 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1490110/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
