How To Upgrade Ubuntu installed on virtualbox
11556
Can I smoothly upgrade from one LTS to next LTS release?
89530
I am unable to open virtualbox
12578
How do I upgrade to a newer version of Ubuntu?
62018
After upgrade of Virtual Box, kernel sources are missing
5490
How do I install Guest Additions in a VirtualBox VM?
87809
VirtualBox fails with "Implementation of the USB 2.0 controller not found" after upgrading
143853
How to install VirtualBox from command line?
136946
How to completely remove virtualbox
10709
Can i upgrade ubuntu without losing my apps and files?
115192
Virtualbox not working after Ubuntu 17.10 upgrade
72535
Will installing Ubuntu on VirtualBox erase data on the host OS?
139647
Do I Need Linux Drivers For Virtual Box?
36473
Can existing virtualenv be upgraded gracefully?
104536
Windows update not working in VirtualBox
1520
How to install software or upgrade from an old unsupported release?
134826
Why can't I install Debian amd64 in VirtualBox?
27698
How to install VirtualBox Guest Additions for Ubuntu 16.04