171029linux自动装机

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制作ks.cfg文件

system-config-kickstart打开下面图形界面，如果命令不存在执行yum install -y system-config-kickstart即可

按照如下配置：

其余全部默认。

这是每个项目的意思：

点File-->Save-->选择一个目录保存ks.cfg文件，然后关闭kickstart confugurator这个界面即可

由于kickstart confugurator这个工具有bug，Package Selection这一项需要手动修改文件才能添加上：

vim /mnt/ks.cfg

最后一行加上，如果需要增加什么服务如lftp，可以在%end之前单独写一行lftp即可：

%packages    #对应图像工具中的Package Selection这一项@base        #只安装基础包%end

第11行，时区改为亚洲/上海

11 timezone Asia/Shanghai

这是ks文件的参数解析：

检查ks.cfg文件语法，没有报错就表示正常

[root@station mnt]# ksvalidator ks.cfg
[root@station mnt]# chmod 755 ks.cfg

cp /mnt/ks.cfg /var/www/html/ 复制到http发布目录，不要用mv，会出问题，暂时未知原因
打开dhcpd服务：

yum install dhcp -y

systemctl start dhcpd

cp /usr/share/doc/dhcp-4.2.5/dhcpd.conf.example /etc/dhcp/dhcpd.conf
vim /etc/dhcp/dhcpd.conf

修改7、8行的标示和server_ip

7 option domain-name "vaon.org";8 option domain-name-servers 172.25.254.48;

删除第27行的subnet

修改30行的subnet：

subnet 172.25.254.0 netmask 255.255.255.0 {   range 172.25.254.110 172.25.254.120;     #表示能自动分配的ip的范围   option routers 172.25.254.48; }

删除33行之后的内容后保存

systemctl restart dhcpd

[root@station Desktop]# systemctl status dhcpd
dhcpd.service - DHCPv4 Server Daemon
   Loaded: loaded (/usr/lib/systemd/system/dhcpd.service; disabled)
   Active: active (running) since Thu 2017-11-02 07:10:48 CST; 8s ago
     Docs: man:dhcpd(8)
           man:dhcpd.conf(5)
Main PID: 30825 (dhcpd)
   CGroup: /system.slice/dhcpd.service
           └─30825 /usr/sbin/dhcpd -f -cf /etc/dhcp/dhcpd.conf -user dhcpd -g...

Nov 02 07:10:48 station dhcpd[30825]: to which interface wlp3s0 is attached. **
Nov 02 07:10:48 station dhcpd[30825]: Nov 02 07:10:48 station dhcpd[30825]: Nov 02 07:10:48 station dhcpd[30825]: No subnet declaration for enp2s0 (no ...).
Nov 02 07:10:48 station dhcpd[30825]: ** Ignoring requests on enp2s0.  If t...at
Nov 02 07:10:48 station dhcpd[30825]: you want, please write a subnet decla...on
Nov 02 07:10:48 station dhcpd[30825]: in your dhcpd.conf file for the netwo...nt
Nov 02 07:10:48 station dhcpd[30825]: to which interface enp2s0 is attached. **
Nov 02 07:10:48 station dhcpd[30825]: Nov 02 07:10:48 station dhcpd[30825]: Sending on   Socket/fallback/fallback-net
Hint: Some lines were ellipsized, use -l to show in full.
执行自动安装虚拟机脚本：

vim create_vm.sh

#!/bin/bashvirt-install \--name $1 \--ram 1024 \--file /var/lib/libvirt/images/$1.img \--file-size 8 \--location http://172.25.254.48/rhel7.0 \--extra-args "ks=http://172.25.254.48/ks.cfg" \--vcpus 1 &

[root@station Desktop]# sh create_vm.sh lkj

[root@station Desktop]#
Starting install...
Retrieving file .treeinfo...                             | 4.2 kB     00:00 !!!
Retrieving file vmlinuz...                               | 9.3 MB     00:00 !!!
Retrieving file initrd.img...                            |  68 MB     00:00 !!!
Allocating 'lkj.img'                                     | 8.0 GB     00:00
Creating domain...                                       |    0 B     00:00
                                       ...

然后等待20分钟左右就会自动安装好一个名为lkj的机器，因为%package那里只安装基础包@base，所以是无图形的：

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