On Sat, Sep 24, 2016 at 8:49 AM, Ed Greshko <ed.greshko@xxxxxxxxxxx> wrote: > > > On 09/24/16 22:39, Ranjan Maitra wrote: >> I have an ASUS R503U which originally came with a Windoze8.1 installation. I have no need for it so I scrapped it. I also, consequently have no need for EFI. >> >> I was wondering if it is required for me to install Fedora 24 on an EFI system. I can not seem to get out of EFI so maybe what I am looking to do is not possible. Is it possible to do the same in an old grub setup. >> >> Many thanks and best wishes, > > FWIW, google "asus r503u disable uefi" and you'll find how to disable uefi for ASUS > hardware. It seems it can be done, just that you need the "magic" incantation to get it > done. :-) I really wish people would qualify their answers rather than giving people razor blades like this and telling them to go play on the freeway. UEFI!=BIOS A system withe UEFI cannot have UEFI turned off. That the manufacturers treat their users with contempt by lying to them with UEFI Enable/Disable switches does not mean it's true this is possible. That feature just enables a compatibility support module to present an emulated BIOS to the OS instead of a UEFI interface. It's meant for legacy OS's that don't grok UEFI, and Fedora is not such a legacy OS. What you give up with the CSM depends on the implementation, there's no way to know this in advance without a lot of testing. But my testing has revealed much worse performance across the board: SSD's are slower because they're seen as IDE drives instead of using AHCI, and likewise the power management for GPU, USB, and CPU p states is also limited. Again, it depends on the hardware. So you're better off a.) keeping the firmware up to date, as there's a metric s tonne of bugs compared to BIOS based firmware b.) using its defaults and otherwise just leave it alone and install Fedora. -- Chris Murphy _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx
