Ubuntu font package fonts-roboto-fontface

You can install these fonts by opening a terminal and executing sudo apt-get install "fonts-roboto-fontface"

RobotoRegular font family with style Normal
/usr/share/fonts/truetype/roboto-fontface/roboto/Roboto-Regular.ttf

Roboto font family with style Italic
/usr/share/fonts/truetype/roboto-fontface/roboto/Roboto-BlackItalic.ttf

. font family with style Italic
/usr/share/fonts/woff/roboto-fontface/roboto-condensed/Roboto-Condensed-BoldItalic.woff

. font family with style Normal
/usr/share/fonts/truetype/roboto-fontface/roboto-condensed/Roboto-Condensed-Regular.ttf

RobotoItalic font family with style Italic
/usr/share/fonts/truetype/roboto-fontface/roboto/Roboto-RegularItalic.ttf

Roboto font family with style Normal
/usr/share/fonts/truetype/roboto-fontface/roboto/Roboto-Light.ttf

Roboto font family with style Italic
/usr/share/fonts/truetype/roboto-fontface/roboto/Roboto-LightItalic.ttf

Roboto font family with style Normal
/usr/share/fonts/woff/roboto-fontface/roboto/Roboto-Medium.woff

Roboto font family with style Italic
/usr/share/fonts/truetype/roboto-fontface/roboto/Roboto-MediumItalic.ttf

Roboto font family with style Normal
/usr/share/fonts/truetype/roboto-fontface/roboto/Roboto-Thin.ttf

Roboto font family with style Italic
/usr/share/fonts/truetype/roboto-fontface/roboto/Roboto-ThinItalic.ttf