I'm about to find out why I never bother with PXE boot

Or maybe I'll work out why I've never done this before

Or maybe I'll admit that I've avoided PXE because Intel

OK, at least Debian has a page on PXE that gives me a chance to make it work

It shouldn't be much harder than the usual bootp/TFTP thing that's been around forever and is supported by OBP

I just need to do all the spade work in the right ways/order

speaking of TFTP, it's 2025 and even cisco's latest really expensive Red Hat machines support booting NX-OS or IOS-XE from TFTP
@yakkoj most boxes now support using http instead of tftp tho, a LOT faster for big boot payload. Also, I now use "Unified Kernel Binary" that mex a kernel, initrd and command line into one big EFI blob and boot it direct. No bootloader needed