Freebsd 内核编译

Step1:更改pkg源

root@FreeBSD:~ #  mkdir -p /usr/local/etc/pkg/repos

root@FreeBSD:~ # vi /usr/local/etc/pkg/repos/1.ustc.conf

ustc: {
url: "pkg+http://mirrors.ustc.edu.cn/freebsd-pkg/${ABI}/latest",
mirror_type: "srv",
signature_type: "none",
fingerprints: "/usr/share/keys/pkg",
enabled: yes
}

root@FreeBSD:~ # mv /etc/pkg/FreeBSD.conf /etc/pkg/FreeBSD.conf.back

root@FreeBSD:~ # pkg update 

Step2:安装编译所需工具

root@FreeBSD:~ # pkg install vim wget git axel

root@FreeBSD:~ # axel -n 10 -a http://mirrors.ustc.edu.cn/freebsd/releases/amd64/13.1-RELEASE/src.txz

root@FreeBSD:~ # tar xzpf src.txz -C / 

Step3:修改内核参数

root@FreeBSD:~ # cd /usr/src/

root@FreeBSD:/usr/src # cd /usr/src/sys/amd64/conf

root@FreeBSD:/usr/src/sys/amd64/conf # mkdir /root/kernels

root@FreeBSD:/usr/src/sys/amd64/conf # cp GENERIC /root/kernels/UNIX

root@FreeBSD:/usr/src/sys/amd64/conf # cd /root/kernels/

root@FreeBSD:~/kernels # vim UNIX 

options     IPFIREWALL
options     IPFIREWALL_VERBOSE
options     IPFIREWALL_VERBOSE_LIMIT=3
options     IPFIREWALL_DEFAULT_TO_ACCEPT
options     IPFIREWALL_NAT
options     DUMMYNET
options     LIBALIAS
options     HZ=2000

root@FreeBSD:~/kernels #  cd /usr/src/sys/amd64/conf

root@FreeBSD:/usr/src/sys/amd64/conf # ln -s /root/kernels/UNIX

Step4:编译内核

root@FreeBSD:/usr/src/sys/amd64/conf # cd /usr/src

root@FreeBSD:/usr/src # make buildkernel KERNCONF=UNIX