In many cases, the dev class vm’s do not have Internet access (annoying) so you cannot install software vi the Internet.
Mount the ISO in the VM.
On the server run the following command:
sudo mount /dev/sr0 /cdrom
ensure that only the following line is uncommented in /etc/ap[t/sources.list
deb cdrom:[Ubuntu-Server 10.04 LTS _Lucid Lynx_ – Release amd64 (20100427)]/ lucid main restricted
Run sudo apt-get update to update the repository. Then install what you need.