Linux Notes
VirtualBox
Problems
VirtualBox has a problem launching guest VM, if KVM (Kernel Virtual Machine) is installed. You’ll need to unload the modules. Or you can just stop it: /etc/init.d/kvm stop
Screen Resolution
To get XVGA screen resolution (and higher) in your guest OS, download VirtualBox Additions ISO:
Launch the guest OS. Press F12 to stop it before it boots. You’ll see a menu item for you to download VirtualBox Additions ISO. After it is downloaded, in your VirtualBox OSE settings for the guest OS, under select the ISO to be mounted as CD/DVD.
Then launch your guest OS, login, cd the CD folder, and run as root: VBoxLinuxAdditions-amd64.run. This will compile and install drivers for vboxvideo (so you’ll need gcc installed).
Next run system-config-display and select vboxvideo driver. Set the resolution to 1024×768. That’s it. Just logout and login.