I lost my password...

I installed os1 when it first came out and have the latest ver. I lost my password from os1, I had it written down. I want to upgrade to xl and I'm wondering will I need to input the password again from os1 in order to install xl or does xl install without me inputting the old password and if so how would I go about getting it again.

youll need a new password for os2xl, the old os1 pw is permanently stored in the unit

thanks it's appreciated