Update... I downloaded the rawhide BOOTAA64.EFI from a different location and am now getting a different error. I originally got my boot files out of the the netinst iso from the rawhide download site: https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Server/aarch64/iso/Fedora-Server-netinst-aarch64-Rawhide-20180315.n.1.iso - The BOOTAA64.EFI file from this source gives me the original "PXE-E23" error. Then, just for fun, I downloaded the BOOTAA64.EFI file directly: https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Server/aarch64/os/EFI/BOOT/BOOTAA64.EFI And when I replace the original with this file, I get a different error on the mustang: ..dppath: path: Fetching Netboot Image Unable to fetch TFTP image: TFTP Error start_image() returned TFTP Error Again, the logs on my server tell me the mustang is pxe booting and getting an IP address. And when I tell my dhcp service to serve out the Fedora27 BOOTAA64.EFI file instead, everything proceeds, and the system boots as expected. So I have to assume at this point there is a bug - or I am doing something dumb because I need sleep. :-) Thanks! _______________________________________________ arm mailing list -- arm@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to arm-leave@xxxxxxxxxxxxxxxxxxxxxxx