what operative system has backtrack??
What operative system is backtrack on? Is it based on Linux 2.4
or something else?
I am trying to install it on virtualbox but it does nnot work.
Well, BackTrack is based on Slax, which in turn is based upon Slackware.
These are examples of the Gnu/Linux operating system.
BackTrack uses the 2.6.x kernel.
There are guides in the "tutorials" section dealing with running BT in a virtual machine.
Hopefully this has given you some starting points for some research?