Installing VirtualBox Guest Additions on Ubuntu 10.04

This worked for me (32bit):


1. Install dependencies:

$> sudo apt-get install dkms
$> sudo apt-get install build-essential

2. Reboot

$> sudo reboot

3. Menu bar -> Devices -> Install Guest Additions...

4. Mount Guest Additions ISO:

$> cd /media
$> sudo mkdir cdrom
$> sudo mount /dev/cdrom /media/cdrom

5. Install Guest Additions:

$> cd cdrom
$> sudo ./VBoxLinuxAdditions-x86.run


Hope that helped