Backtrack Linux Distro

[ktb231]

Which distro is Backtrack based on? I have read Ubuntu but when booting it show Debian. Just curious as to which I should select in VMWare when installing it as a VM. I prefer to set up my own from a full iso rather than download the VMWare iso. Also based on which distro does anyone have a good reference for commands. I have worked with Suse and CentOS (RH) for years and am familiar with their commands but a lot of them don't work with Backtrack (Ubuntu or Debian). Especially Yum or Yast, I know BT equivalent is apt-get but I am looking for a good resource of commands and explanations. I have use help a little there does not appear to be man pages.

Thanks

[sickness]

Backtrack 5 is based on Ubuntu 10.04