Side note- do you have virtual box installed? If you do, that might be the problem- see this post here ubuntu-upgrade-issue-6-14-0-37-generic-to-6-17-0-14-generic-kernel
Side note- do you have virtual box installed? If you do, that might be the problem- see this post here ubuntu-upgrade-issue-6-14-0-37-generic-to-6-17-0-14-generic-kernel