by sglafata » May 24th, '12, 20:19
I downloaded the DVD and tried to install that way, which failed miserably. The install failed on me 4 times before I did an CLI upgrade following the Release Notes.
In order to get your video working again, and following the Errata, you can enter 'xdriver=nouveau' in grub when booting. This may or may not get you to a GUI but at least you should be able to get online (it should), but in my case (with an ATI Radeon card), I accessed CTRL-ALT-F1 after I got my GUI login screen, logged into the console and did an inline update following the instructions in the Release Notes (Upgrading online, using urpmi (CLI)). Remember that by default not all repositories are enabled. Once you are able to update your system (I had 2200 packages), reboot, log into the GUI, enable your "required" repositories, and update again. If necessary, download the package 'kernel-firmware-nonfree' on another machine and install this on this machine. That is what you need for your wifi to work. Also, make sure you install the 'x11-driver-video-nouveau' package. This will allow you to remove the 'xdriver=nouveau' from your grub entry.
In my case, I had a similar experience in Mageia 1 when I upgraded from Mandriva 2010.2 so I knew how to recover and get my system up and running. So far, I have a working system and am enjoying the new eye candy Mageia 2 has to offer.