On Sat, Jan 16, 2016 at 01:15:20PM +0000, Michael Brown wrote: > On 16/01/16 12:35, Linus Lüssing wrote: > > I also extracted the 64-bit ELF vmlinux from the vmlinuz (bzimage) > > and tried booting that. However this gave me an "Exec format error" > > again, apparently. > > > > With UEFI and an Intel Core 2 Duo I should be able to chainload > > into a 64-bit ELF from the 64-bit ipxe.efi, shouldn't I? Or am I > > missing something obvious? > > No; on a UEFI platform you can load only iPXE scripts and EFI > executables. You can't directly load an ELF binary.
Ah, okay. But technically, theoretically it would be possible to implement an iPXE EFI to boot into an ELF kernel, wouldn't it? I mean, even an EFI kernel will be able and need to run ELFs at some point. Anyways, the kernel I have seems to have CONFIG_EFI_STUB=y set, so it should be suitable to be chainloaded from an iPXE EFI, even if "$ file vmlinux" says it's an ELF, right? (though from the brief wiki scaning I'm not quite sure what EFI_STUB does, yet. Especially don't know whether extracting the vmlinux from the provided vmlinuz kind of breaks EFI_STUB for vmlinux bc. of specific entry point addresses or something like that, don't know - that would explain the "Exec format error" for the extracted vmlinux and why there's no such error for the original vmlinuz) Will try the compile time option in a second, thanks! _______________________________________________ ipxe-devel mailing list [email protected] https://lists.ipxe.org/mailman/listinfo.cgi/ipxe-devel
