dhcpcd项目地址：http://www.linuxfromscratch.org/blfs/view/stable-systemd/basicnet/dhcpcd.html
1.下载dhcpcd包并校验md5
wget http://roy.marples.name/downloads/dhcpcd/dhcpcd-7.0.7.tar.xz md5sum -c md5sums
2.解压并进入包目录
tar -xvf dhcpcd-7.0.7.tar.xz cd dhcpcd-7.0.7
3.参照书中内容编译安装
./configure --libexecdir=/lib/dhcpcd \
--dbdir=/var/lib/dhcpcd &&
make
make install
4.返回blfs-sources目录并删除解压的包目录
cd $LFS/sources/blfs-sources/ rm -rf dhcpcd-7.0.7
5.安装blfs脚本文件
make install-dhcpcd
6.配置开机启动dhcpcd服务
systemctl enable dhcpcd@eth0
etho更换为实际的网络接口