I managed to get a picture from the super fast console output.
Apparently the script fails to find the linux-headers-3.6.11-rpi-aufs package.

the command uname -r gives me : 3.6.11-rpi-aufs
so its seems my current installation was the good version.

then, i did a rpi-update, it seems the downloaded kernel is 3.10.10+.
however, after firmware update and reboot, uname -r still gives me 3.6.11-rpi-aufs

there is a linux-headers-3.6.11+ file in /usr/src/ .

i read that the gamecon drivers needs to be reinstalled after a kernel update. SO, that’s what I tried in with RetroPie script… it seems something is missing somewhere to make the link between the RetroPie script and the linux headers.

I continue my investigations…