I've just installed Ubuntu 10.04 into VirtualBox on Windows 7.
Unfortunately the only options showing for screen resolution are 640×480 and 800×600 and the monitor is showing as 'Unknown'.
How would I go about upping the resolution to 1280×1024 (I'm on a 1600×1200 monitor)?
Update
I tried mounting the VirtualBox 'Guest Additions' ISO (from the VBox 'Devices' menu) and doing sudo sh ./VBoxLinuxAdditions-x86.run
from the mounted drive, which gave 2 new listed resolutions after a reboot (1024×768 and the 16:9 version of that resolution). These worked when I selected them but disappeared when I switched back to another resolution. I tried rebooting and running VBoxLinuxAdditions-x86.run again but onlu the 2 low res options listed this time.
I think I'm going to reinstall…
Seems to be a VBox problem rather than an Ubuntu problem as after reinstalling 10.4 overwriting the original virtual partition, sudo sh ./VBoxLinuxAdditions-x86.run now has no affect at all.
Best Answer
You need to install the VBox guest utilities to add support for the virtualised graphics hardware.
Previously you might have needed the "ose" versions: