On Jan 29, 2013, at 8:15 PM, Chris Murphy <lists@xxxxxxxxxxxxxxxxx> wrote: > > The Fedora prebaked grubx64.efi doesn't include all GRUB modules (e.g. lvm, xnu) and it isn't looking for standalone GRUB modules in the location that grub2-install can install them into. And anaconda doesn't call grub2-install on UEFI computers. As a consequence of grubx64.efi not containing all GRUB modules, and also not having access to standalone ones: 1. UEFI installs can't boot from boot on an LV. Anaconda allows it on both BIOS and UEFI, it works on BIOS installs, but fails on UEFI installs with a GRUB error: error: file '/EFI/fedora/x86_64-efi/lvm.mod' not found. 2. Anaconda calls grub2-mkconfig, which on Macs containing OS will creating OS X boot entries in the GRUB menu. These don't work because the grub.cfg calls for xnu modules, which aren't baked in, and can't be found standalone. Last week I asked upstream GRUB devel about where the GRUB modules and grub.cfg are supposed to go, if they can go on the ESP, and I merely got a cranky vague answer about distributions doing custom and unsupportable things and it's not their problem. The gist appears to be they expect grub2-install to be run on each computer, which of course isn't workable with Secure Boot. But in addition, grub2-install only installs to $prefix/grub2, but that's not the prefix the Fedora prebaked grubx64.efi uses. And on Macs, mactel-boot uses HFS+ for /boot/efi, and grub2-install won't install anything to an HFS+ ESP. So it's sort of a mess. Chris Murphy -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
