up-board squared default password

I have got new up2 hardware board today. I want to install software on it. When i turned the board up , it asked for password. But i didn't receive any manual or any other information related to password.
Could anyone please tell what could be the default password for up2 board?
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Hi,
You don't need any password to install OS unless you would like to make some BIOS advanced setting. You can see BIOS password here.
Thank you Aling for your response