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Current RISC-V and AArch64 kernels found in the wild tend not to be in the documented kernel format, but are instead "EFI zboot" kernels comprising a small EFI executable that decompresses and executes the inner payload (which is a kernel in the expected format). The EFI zboot header includes a recognisable magic value "zimg" along with two fields describing the offset and length of the compressed payload. We can therefore treat this as an archive image format, extracting the payload as-is and then relying on our existing ability to execute compressed images. This is sufficient to allow iPXE to execute the Fedora 42 RISC-V kernel binary as currently published. Signed-off-by: Michael Brown <mcb30@ipxe.org>
iPXE README File Quick start guide: cd src make For any more detailed instructions, see http://ipxe.org