Video playback

[VALERYRAMIREZ]

Good afternoom everyone, right now I'm testing capabilities of the nanopi M1 with 1GB RAM for playing videos and I've put a movie in a USB stick but when I try to play it with the embedded VLC of ubuntu mate provided by friendlyarme but it does nothing. I also tried to update VLC or the ubuntu itself but by terminal it says that I need the pasword for sudo, where I can find it?.

[VALERYRAMIREZ]

Here is a image of my problem to do updates:

[guidol]

normally fa is the password for root:

Ubuntu-Core User Accounts:

Non-root User:
User Name: pi
Password: pi

Root:
User Name: root
Password: fa