On my HP Microserver (Ubuntu 16.04 LTS) I updated an hour ago to the latest kernel (4.4.0-108-generic). After that the system won't start. I 'Grubbed' into 4.4.0-104 and it boots without problems. Anyone else have the same experience?
I noticed later that someone else has already mentioned this (i.e. possibly the same problem) in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742323. My apologies.