2016-11-17 15:51, David Aldrich: > make[6]: *** /lib/modules/4.1.21-rt13-WR8.0.0.10_preempt-rt/build: No such file or directory. Stop. You need the kernel headers, or just disable compilation of kernel modules: sed -ri 's,(KNI_KMOD=).*,\1n,' build/.config sed -ri 's,(IGB_UIO=).*,\1n,' build/.config