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I'm using a Dell Inspiron 15r laptop with existing Windows 7 ultimate 32-bit operating system.

Now I want to install Backtrack 5 and dual boot. And I'm not able do it, getting the following errors:

I just log in with username root and password toor, then type startx to launch the GUI, but startx reports "command not found".

I've tried various commands such as login and sh, but no luck. sudo is out of the question, too.

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The startx script should be provided by the xinit package. Check whether you have it installed:

dpkg --get-selections xinit

If it's not installed, then, as root, run apt-get update; apt-get install xinit.

If it's already installed, then run apt-get update; apt-get install --reinstall xinit

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