Thank you for taking the time to report this issue and helping to make Ubuntu better. Examining the information you have given us, this does not appear to be a bug report so we are closing it and converting it to a question in the support tracker. We appreciate the difficulties you are facing, but it would make more sense to raise problems you are having in the support tracker at https://answers.launchpad.net/ubuntu if you are uncertain if they are bugs. For help on reporting bugs, see https://help.ubuntu.com/community/ReportingBugs#When%20not%20to%20file%20a%20bug.
It sounds like you modified your source.list and then used apt-get update, apt-get dist-upgrade to upgrade. Were you to have used do- release-upgrade you would have received a warning about the lack of free space in your /boot partition. ** Changed in: ubuntu Status: New => Invalid ** Converted to question: https://answers.launchpad.net/ubuntu/+question/402973 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1631728 Title: linux-image-extra-4.4.0-generic problem installing during upgrade 16.04 LTS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1631728/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs