milkybird

When using openmpi, the lines that modify `/etc/hosts` are redundant, the orte process manager does not need to resolve the hostnames of mpi nodes. But the current hydra process manager...

The reason why I choose to modify the `/etc/hosts` file directly instead of using DNS is mainly because the dns server that comes with k8s uses fdqn hostname of pods,...

@smallerxie 没有找到libpcap.a文件是因为新的openwrt sdk启用了自动清理，在输出ipk文件后就会删除build过程中的临时文件，此步骤会清空 `build_dir/target-//` 目录下的文件 而mentohust编译需要用到build过程中产生的 `build_dir/target-/libpcap-*/ipkg-install/usr/lib/libpcap.a` 文件，自然是无法找到的 关闭 `menuconfig -> Advanced configuration options (for developers) -> Automatic removal of build directories` 功能即可正常编译