On 05/10/2012 09:34 PM, Chris Murphy wrote: > On May 10, 2012, at 8:56 PM, Adam Williamson wrote: >> I'd say almost certainly yes. AIUI on any EFI system there's only ever a >> reason to have _one_ EFI system partition. > mactel-boot in effect creates an HFS+ /boot/efi partition, and does not use the existing > FAT32 EFI System partition. So there are already two for Macs. But I'll take it to mean > that anaconda should be able to identify and reuse a pre-existing HFS+ /boot/efi > instead of creating another one. Anaconda claims that the natural sharing of EFI System Partition across multiple OS is not supported, neither for Install nor for Update: "EFI install from DVD forgets previous EFI boot" https://bugzilla.redhat.com/show_bug.cgi?id=809963#c7 "As far as sharing the same /boot/efi directory between installs, we don't support that -- a new copy of the grub.efi binary is written as well as a new grub.conf." -- -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel