在centos上cobbler实现pxe的自动化安装

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　　实验1：在centos7上cobbler实现pxe的自动化安装

（1）A机器，搭建cobbler的配置
yum install cobbler  cobbler-web    安装时依赖安装的包有tftp-server、httpd
yum install dhcp
systemctl enable httpd
systemctl start httpd
systemctl enable tftp
systemctl start tftp
rpm -ql cobbler|grep service
systemctl start cobblerd
cobbler check
vim /etc/cobbler/settings
server: 172.18.62.60
systemctl restart cobblerd
cobbler check
vim /etc/cobbler/settings
next_server: 172.18.62.60
systemctl restart cobblerd
cobbler check
openssl passwd -1       生成加密的密码
vim /etc/cobbler/settings   复制密码
default_password_crypted: "$1$9CWphr2E$deIQsrb3oZPmQ/7YkZoC30"
systemctl restart cobblerd
cobbler check
cobbler get-loaders
systemctl restart cobblerd
cobbler check
yum install pykickstart
systemctl restart cobblerd
cobbler check
vim /etc/cobbler/settings
manage_dhcp: 1 必须启用，否则不能自动生成dhcp配置文件
vim /etc/cobbler/dhcp.template
option routers             172.18.62.5;
option domain-name-servers 114.114.114.114,8.8.8.8;
option subnet-mask         255.255.0.0;
range dynamic-bootp        172.18.62.90 172.18.62.200;
default-lease-time         21600;
max-lease-time             43200;
next-server                $next_server;    变量自动获取地址
systemctl restart cobblerd
cobbler check
cobbler sync
ss -nutl
systemctl enable dhcpd
fconfig ens37 down
systemctl start dhcpd
systemctl status dhcpd
ss -nutl
ls /var/lib/tftpboot/
tree /var/www/
mkdir /mnt/centos6
添加centos6的光盘
echo "- - -" > /sys/class/scsi_host/host0/scan
echo "- - -" > /sys/class/scsi_host/host1/scan
echo "- - -" > /sys/class/scsi_host/host2/scan
mount /dev/sr1 /mnt/centos6
ls /mnt/centos6
cobbler import --path=/mnt/centos7/ --name=Centos7.4    将光盘导入cobbler中，并
设置默认应答文件；
cobbler import --path=/mnt/centos6/ --name=centos6.9 --arch=x86_64
cobbler profile list
cobbler distro list
cd /var/lib/cobbler/
cd kickstarts/
rz  将自定义的ks应答文件导入到此目录
chmod 644 * 设置ks文件可读
vim ks7-pxe-desktop.cfg
url --url=$tree 变量自动找到系统镜像的路径
vim ks6-pxe-desktop.cfg
url --url=$tree 变量自动找到系统镜像的路径
cobbler profile list    显示启动菜单项
cobbler distro list 显示系统镜像
cobbler profile add --name=Centos7.4-x86_64-desktop --distro=Centos7.4-x86_64 --kickstart=/var/lib/cobbler/kickstarts/ks7-pxe-desktop.cfg   添加启动菜单项
cobbler profile add --name=Centos6.9-x86_64-desktop --distro=centos6.9-x86_64 --kickstart=/var/lib/cobbler/kickstarts/ks6-pxe-desktop.cfg   添加启动菜单项
　　（2）要安装的机器的配置

        关闭自动获取本地dhcp选项
设置网络模式
设置硬盘大小以适应ks中的分区
设置内存大小以防centos7图形安装内存不够
进入启动项界面，选择网络引导，以安装系统