Ok I have used boot-repair to convert it to EFI and reinstall rEFInd and I see 4 CPUs with a 3.9.11. Great!
For an unkown reason, the boot gets stuck at "Loading initial ramdisk" with a 3.11 rc but it must be something else (maybe a boot repair got confused...I'm going to check my grub config (I suppose grub-EFI config files are the same as the grug "legacy" ones).
Ok I have used boot-repair to convert it to EFI and reinstall rEFInd and I see 4 CPUs with a 3.9.11. Great!
For an unkown reason, the boot gets stuck at "Loading initial ramdisk" with a 3.11 rc but it must be something else (maybe a boot repair got confused...I'm going to check my grub config (I suppose grub-EFI config files are the same as the grug "legacy" ones).