On Mon, Feb 03, 2014 at 08:14:06PM -0800, Andrew Lutomirski wrote: > (This is a particular pain point for me -- my main development box was > originally installed as BIOS, and I switched it to UEFI, and I'm sure > I did it wrong because the boot process is impressively finicky.) If your hard disc is GPT partition the movement from BIOS to UEFI boot shoot be very easy. You have to install grub2-efi and create the configuration file on /boot/efi/EFI/fedora/grub.cfg. Thy other wy may be harder, because you need 1.) A special BIOS Boot partition (type EF02) with a size of 1 MB. This is required because grub2 can't write the bootstrapping code behind the partition table of a GPT. 2.) A hybrid partition table created with gdisk. The MBR must contains the BIOS Boot partiition as an primary bootable partition. This may affect the usability of other OSs installed on the same disc depeneding of the creation of protected MBR partitions. You may use gptsync to create a hybrid partition table. This is only recommented, if you disk has no more the four partitions 3.) On my MacBoot Pro (late 2013) I required the usage of the linux16/initrd16 commands instead of linux/initrd commands for the BIOS-mode boot. You may see, that I can't advise the installation of a BIOS-mode boot system on a GPT partioned disc, because there are severals pitfalls which you have to considered. Best Regards: Jochen Schmitt -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
