I had a problem when installed Ubuntu 20.04 as a guest in VirtualBox 6.1.18 The Auto-resize Guest Display did not work and I was able only to set one of the pre-defined resolutions in the Ubuntu. The question is how to enable the Auto-resize?
1 Answer
I found a good answer here:
- If Guest Additions ISO is already installed, eject it: Start File manager -> find in the left panel “Vbox_Gas_6.1.18” -> press Eject button
- Install required build tools:
sudo apt update -y
sudo apt upgrade
sudo apt install dkms linux-headers-$(uname -r) build-essential
- Reboot Ubuntu
- Start Ubuntu -> Insert the Guest Additions ISO: Devices -> Insert Guest Additions CD image
- Reboot Ubuntu
This is to contribute to this discussion:Ubuntu 20.04 VM always resizes screen to default size when booting
