Apparently, its that time of the year again when an update breaks ubuntu. This year after a routine update Ubuntu 18.04 LTS gets stuck at the splash screen. (Please note that I was not upgrading to LTS 18.04. I did that months ago. This was a routine software update.). I've tried booting to recovery mode and was presented with a root log on which I could not use because I hadn't created a root user.
Update
The bootup process does eventually proceed past the splash screen after a loooooong time.
According to comments on the bug report associated with the bad kernel update, if you are in the 'this update caused my computer to boot really slow but not totally crash it' club, you can fix that by installing the
haveged
package.Maybe this could help for those whom the issue occurred on Virtual box ( ubuntu as Guest ):
I went through the settings of my virtual machine and disabled 3D checkbox for the graphic controller. And my system is back to normal. It is a simple workaround in order to wait for the last update from ubuntu. Once the issue is fixed, sudo apt-get update will fix the broken update. Hope that helps!