Description of problem: Currently the existing Fedora 24 and 25 Live installers can't boot from a USB key on legacy Apple hardware like a MacBook Pro 2,1 which lacks EFI-64 firmware with only EFI-32 firmware. The next Fedora release should adopt the same mixed-mode multi-arch installer approach as taken by Debian in their Jessie https://cdimage.debian.org/debian-cd/current/multi-arch/iso-cd/debian-8.6.0-amd64-i386-netinst.iso installer. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. Attempt to boot a USB drive or memory key with the Fedora 24 or 25 x86_64 Live installer on any of the following Apple hardware which lacks EFI-64 firmware and only has EFI-32 firmware... MacBook2,x MacBook3,x MacBook4,x MacBookPro2,x MacBookAir1,1 MacMini1,x with C2D MacMini2,x iMac4,x with C2D iMac5,x MacPro1,x MacPro2,x 2.You will find that the option key EFI boot selector shows no icon for the attached USB drive or key. 3.Prepare a USB drive or key with the debian-8.6.0-amd64-i386-netinst.iso installed on it. Actual results: The boot selector will show the boot EFI for the Debian Jessie multi-arch installer on a USB device mounted on an EFI-32 firmware Mac, but not for any of the available Fedora releases. Expected results: I expected the Fedora releases to be able to boot the x86_64 linux from a USB device. Additional info: Note that the Fedora 24 and 25 Live DVD installers will in fact boot (because they avoid the EFI boot mechanism) and install a usable copy of Fedora 24 or 25 on a Mac with EFI-32 firmware. The Debian Mixed-Mode support is described on https://wiki.debian.org/UEFI as follows... Support for mixed-mode systems: 64-bit system with 32-bit UEFI Some systems have been released containing 64-bit Intel Atom CPUs (such as the Bay Trail), but unfortunately use 32-bit UEFI firmware with no BIOS compatibility mode. Using the 32-bit UEFI x86 support, an i386 installation should be possible on these machines but it won't make the most of the 64-bit hardware. Debian Jessie (8.0) was the first Linux distribution to include full support for mixed-mode UEFI installation on these machines. The multi-arch installation media (available in netinst and DVD form) include the UEFI boot loaders necessary for both i386 and amd64 boot. By selecting "64-bit install" from the initial boot menu, debian-installer will install a 64-bit (amd64) version of Debian. The system will automatically detect that the underlying UEFI firmware is 32-bit and will install the appropriate version of grub-efi to work with it. Note that a 64-bit Graphical install of x86_64 Debian Jessie Linux using the multi-arch iso installs... /boot/efi/EFI/debian/boot.efi /boot/efi/EFI/debian/bootia32.efi to allow the x86_64 Linux kernel to boot on the EFI-32 motherboard.
This bug appears to have been reported against 'rawhide' during the Fedora 26 development cycle. Changing version to '26'.
Ditto for ASUS T100TA, and a whole pile of Baytrail-T based devices that ship with Windows 8 (Those that ship with Android are OK). Works out of the box in Ubuntu.
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Fedora 26 changed to end-of-life (EOL) status on 2018-05-29. Fedora 26 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.