I figured out some stuff... the reason the USB drive no longer boots is because u-boot is configured to boot in a certain order, and the Linux install is earlier.
You can do things like: ls usb 0:1 / and then the key is efi or eficonfig and move usb earlier than nvme. That let's the USB drive boot. I still haven't figured out how to boot the OpenBSD install. Perhaps it is this: > => run findfdt > => load mmc 0:1 ${fdt_addr_r} ${fdtfile} > => load mmc 0:1 ${kernel_addr_r} efi/boot/bootaa64.efi > => bootefi ${kernel_addr_r} ${fdt_addr_r} >The bootloader will then run and try to load sd0a:/bsd off an FFS This is outide of the Mac area of the documentation. Jay ________________________________________ From: Jay K <jayk...@hotmail.com> Sent: Friday, April 4, 2025 4:35 AM To: arm@openbsd.org <arm@openbsd.org> Subject: booting Mac? Hi. I have M1Max MacBookPro. I installed the Asahi Linux EFI environment, then booted install76.img from USB, went through the install seemingly successfully, installed all sets, relinked kernel, and then the system won't boot. I mean, I can get to the boot menu and back to MacOS, and even since instaleed Asahi Linux completely. But if I boot the EFI option, it doesn't get past the early UBoot. Nor does the original flash still boot. I even re-dd'ed it in Linux. It doesn't find its files. I cannot boot OpenBSD is what I mean. Any ideas? Btw, the install is a little unfriendly/unclear. When it says "whole disk" I'm not sure it is talking about the disk or a partition. I wasn't sure if I'd learn MacOS,but I managed to get through it. Thank you, Jay