Comment 18 for bug 1742789

Alright, I think I'm starting to narrow down the issue. I was able to use apt-get and install kernels up to linux-image-4.4.0-112-generic. I'm even able to install the latest, if I uninstall package 'linux-generic' and manually install linux-image-4.4.0-116-generic, e.g.,

sudo apt-get purge linux-generic
sudo apt-get install linux-image-4.4.0-116-generic

But, as soon as I install 'linux-generic' the no-boot issue returns with xen.

sudo apt-get install linux-generic

I'm not certain what to check at this point?