Cobbler介绍
Cobbler是一个快速网络安装linux的服务,而且在经过调整也可以支持网络安装windows。该工具使用python开发,小巧轻便(才15k行代码),使用简单的命令即可完成PXE网络安装环境的配置,同时还可以管理DHCP,DNS,以及yum包镜像。
一、安装和修改cobbler配置
1. Cobbler不在CentOS的基本源中,需要导入EPEL源升级软件包,
# rpm -Uvh http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rp安装完运行yum报错:Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again
解决方法
vim /etc/yum.repos.d/epel.repo
编辑[epel]下的baseurl前的#号去掉,mirrorlist前添加#号。正确配置如下:
[epel]
name=Extra Packages for Enterprise Linux 6 - $basearchbaseurl=http://download.fedoraproject.org/pub/epel/6/$basearch#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=$basearchfailovermethod=priorityenabled=1gpgcheck=1gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6再运行
2. yum安装cobbler包
# yum -y install cobbler httpd rsync tftp-server xinetd dhcp
3. 开启cobbler服务,重启Apache服务,设置各个服务开机自启动
# service httpd start
# service cobblerd start# service xinetd start# /sbin/chkconfig httpd on# /sbin/chkconfig dhcpd on# /sbin/chkconfig xinetd on# /sbin/chkconfig tftp on# /sbin/chkconfig cobblerd on4. 关闭SELinux和防火墙# vi /etc/sysconfig/selinuxSELINUX=enforcing更改为SELINUX=disabled重启系统5. 修改cobbler配置
# vi /etc/cobbler/setting
'next_server: 127.0.0.1' 替换本机IP地址 (DHCP服务地址)'server: 127.0.0.1' 替换本机IP地址(cobbler服务地址)'manage_dhcp: 0' 替换为 1(cobbler管理dhcp,后面用于同步更新配置信息[cobbler sync])'manage_rsync: 0' 替换为 1 (cobbler管理rsync功能)6. 加载部分缺失的网络boot-loaders
# cobbler get-loaders
7. 启动tftp和rsync服务
# vi /etc/xinetd.d/tftp
修改成:disable=no# vi /etc/xinetd.d/rsync修改成:disable=no8. 修改DHCP模板,确保DHCP分配的地址和Cobbler在同一网段
# cat /etc/cobbler/dhcp.template
ddns-update-style interim;allow booting;allow bootp;ignore client-updates;set vendorclass = option vendor-class-identifier;option pxe-system-type code 93 = unsigned integer 16;subnet 192.168.1.0 netmask 255.255.255.0 {option routers 192.168.1.1;option domain-name-servers 192.168.1.1;option subnet-mask 255.255.255.0;range dynamic-bootp 192.168.1.100 192.168.1.254;default-lease-time 21600;max-lease-time 43200;filename "/pxelinux.0";next-server $next_server;9. 修改cobbler的默认密码
用 openssl 生成一串密码后加入到 cobbler 的配置文件(/etc/cobbler/settings)里,替换 default_password_crypted 字段:
# openssl passwd -1 -salt 'random-phrase-here' '1234567'
$1$random-p$/pL7QZ2d5UVH9GzhJ2lYT1
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