My virtualbox 5.0 use to work on kernel 4.8.13 and it was in my list of kernels to choose from.
Apparently automatic download and updates removed 4.8.13 and installed the latest kernel available 4.13.x without my knowledge.
Now, virtualbox crashes 100% of the time every time I boot one of the virtual machines. The whole host operating system (Ubuntu) FREEZES COMPLETELY. The only way is to reboot my system (power cycling).
So, I thought maybe I can install 4.8.13 and get virtualbox working again, but I DO NOT see 4.8.13 in the list of kernel images in the repository. And I thought maybe different version of 4.8.X will work. None of the old kernels I have tried so far worked to fix my problem at all. So, what am I doing wrong? What are my next steps in solving this issue?