mfoniso@xanax:~/Desktop$ sudo apt-get install virtualbox-2.0
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package virtualbox-2.0 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package virtualbox-2.0 has no installation candidate
mfoniso@xanax:~/Desktop$