First you need to install the following packages
sudo apt-get install libxalan110 libxerces27
wget http://www.virtualbox.org/download/1.5.4/virtualbox_1.5.4-27034_Ubuntu_gutsy_i386.deb
Once you download the package you have virtualbox_1.5.4-27034_Ubuntu_gutsy_i386.deb file
Install.deb file using the following command
sudo dpkg -i virtualbox_1.5.4-27034_Ubuntu_gutsy_i386.deb
At the time of installation if you have any dependency problems like the following errors
Selecting previously deselected package virtualbox.
(Reading database … 174459 files and directories currently installed.)
Unpacking virtualbox (from virtualbox_1.5.4-27034_Ubuntu_gutsy_i386.deb) …
dpkg: dependency problems prevent configuration of virtualbox:
virtualbox depends on libxalan110; however:
Package libxalan110 is not installed.
virtualbox depends on libxerces27; however:
Package libxerces27 is not installed.
dpkg: error processing virtualbox (–install):
dependency problems - leaving unconfigured
Errors were encountered while processing:
virtualbox
If you see the above error message you can use the following command to install all the required dependencies
sudo apt-get -f install
This will complete the installation
Starting the VirtualBox Graphical User Interface
If you want to start Virtualbox GUI use the following command from your terminal(Applications—>Accessories— >Termianl)
VirtualBox
Once it opens you should see the following screen