One could also watch the Error Tracker for package install failures at the following url:
https://errors.ubuntu.com/?release=Ubuntu%2015.10&package=modemmanager&period=week -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to modemmanager in Ubuntu. https://bugs.launchpad.net/bugs/1481798 Title: package:modemmanager:1.4.10-1:subprocess installed post-installation script returned error exit status 100 Status in modemmanager package in Ubuntu: Fix Released Bug description: WORKAROUND: At the end of the install if modemmanager fails to install correctly do the following: Open a terminal and sudo dpkg --configure -a sudo reboot upon returning to the desktop the open a terminal and run sudo apt-get update && sudo apt-get autoremove This should have you back at a working system with any packages not needed removed. ISSUE: The Ubuntu Error Tracker has been receiving reports about a problem regarding modemmanager. This problem was most recently seen with version 1.4.10-1, the problem page at https://errors.ubuntu.com/problem/abc807de9d9c87d965fea31c865192edb30b6738 contains more details. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/modemmanager/+bug/1481798/+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
