Certain compilers (I haven't quite tracked it down to if it's a certain version or distro specific things) strip out some metadata that is required for PVH bootable kernels to boot properly. They require a couple extra CFLAGS to tell them to not. Iggy Jackson (1): fix PVH bootable kernel on some compilers Makefile | 4 ++++ 1 file changed, 4 insertions(+) -- 2.34.1