If you have installed installed Mandriva One, the official repo’s will already be added. To add the PLF restricted sources visit Easy URMPI for an automated way of doing this per below:
Visit http://easyurpmi.zarb.org/ in your browser. The site should automatically detect your Mandriva version and your architecture.
Scroll down. You should see the buttons Add Official medias and Add PLF medias.
Although you most probably have already enabled the official
repositories (during the first boot or the software update), you can
click on Add Official medias. In the Firefox download dialogue, select Open with Add urpmi media (default):
Answer the question Is it ok to continue? with Yes:
The package database is now being updated:
Click on Ok afterwards:
Now do the same for the PLF repositories by clicking on the Add PLF medias button: