linux运维、架构之路-cobbler无人值守

[root@cobbler ~]# cat /etc/redhat-release 
CentOS release 6.9 (Final)
[root@cobbler ~]# uname -r
2.6.32-696.el6.x86_64
[root@cobbler ~]# /etc/init.d/iptables status
iptables: Firewall is not running.
[root@cobbler ~]# getenforce 
Disabled
[root@cobbler ~]# hostname -I
10.0.0.121 172.16.1.121

CentOS6安装
yum localinstall Django14-1.4.21-1.el6.noarch.rpm -y
yum -y install cobbler cobbler-web dhcp tftp-server pykickstart httpd
#说明：yum源里已经去除了Diango的下载源

CentOS7安装
yum -y install cobbler cobbler-web dhcp tftp-server pykickstart httpd

[root@cobbler ~]# /etc/init.d/httpd restart
Stopping httpd:                                            [  OK  ]
Starting httpd:                                            [  OK  ]
[root@cobbler ~]# /etc/init.d/cobblerd start
Starting cobbler daemon:                                   [  OK  ]

[root@cobbler tools]# cobbler check
The following are potential configuration items that you may want to fix:

1 : The ‘server‘ field in /etc/cobbler/settings must be set to something other than localhost, or kickstarting features will not work.  This should be a resolvable hostname or IP for the boot server as reachable by all machines that will use it.
2 : For PXE to be functional, the ‘next_server‘ field in /etc/cobbler/settings must be set to something other than 127.0.0.1, and should match the IP of the boot server on the PXE network.
3 : change ‘disable‘ to ‘no‘ in /etc/xinetd.d/tftp
4 : some network boot-loaders are missing from /var/lib/cobbler/loaders, you may run ‘cobbler get-loaders‘ to download them, or, if you only want to handle x86/x86_64 netbooting, you may ensure that you have installed a *recent* version of the syslinux package installed and can ignore this message entirely.  Files in this directory, should you want to support all architectures, should include pxelinux.0, menu.c32, elilo.efi, and yaboot. The ‘cobbler get-loaders‘ command is the easiest way to resolve these requirements.
5 : change ‘disable‘ to ‘no‘ in /etc/xinetd.d/rsync
6 : file /etc/xinetd.d/rsync does not exist
7 : debmirror package is not installed, it will be required to manage debian deployments and repositories
8 : The default password used by the sample templates for newly installed machines (default_password_crypted in /etc/cobbler/settings) is still set to ‘cobbler‘ and should be changed, try: "openssl passwd -1 -salt ‘random-phrase-here‘ ‘your-password-here‘" to generate new one
9 : fencing tools were not found, and are required to use the (optional) power management features. install cman or fence-agents to use them

Restart cobblerd and then run ‘cobbler sync‘ to apply changes.
#只需一步一步解决上面出现的问题即可，然后重启Cobbler

cp /etc/cobbler/settings{,.bak} #备份Cobbler主配置文件

sed -i ‘s/server: 127.0.0.1/server: 172.16.1.121/‘ /etc/cobbler/settings 
sed -i ‘s/next_server: 127.0.0.1/next_server: 172.16.1.121/‘ /etc/cobbler/settings
sed -i ‘s/manage_dhcp: 0/manage_dhcp: 1/‘ /etc/cobbler/settings #使用cobbler管理dhcp
sed -i ‘s/pxe_just_once: 0/pxe_just_once: 1/‘ /etc/cobbler/settings #防止有些机子第一启动是pxe循环重装系统，此处设置为只能装一次
sed -ri "/default_password_crypted/s#(.*: ).*#\1\"`openssl passwd -1 -salt ‘cobbler‘ ‘123456‘`\"#" /etc/cobbler/settings #设置系统的默认密码为123456
sed -i ‘s#yes#no#‘ /etc/xinetd.d/rsync
sed -i ‘s#yes#no#‘ /etc/xinetd.d/tftp

sed -i ‘s#192.168.1#172.16.1#g;22d;23d‘ /etc/cobbler/dhcp.template
#修改过后内容如下：
……
subnet 172.16.1.0 netmask 255.255.255.0 {
     option subnet-mask         255.255.255.0;
     range dynamic-bootp        172.16.1.100 172.16.1.254;
     default-lease-time         21600;
     max-lease-time             43200;
     next-server                $next_server;
……

[root@cobbler tools]# /etc/init.d/xinetd restart
Stopping xinetd:                                           [  OK  ]
Starting xinetd:                                           [  OK  ]
[root@cobbler tools]# /etc/init.d/cobblerd restart
Stopping cobbler daemon:                                   [  OK  ]
Starting cobbler daemon:                                   [  OK  ]
[root@cobbler tools]# /etc/init.d/httpd restart
Stopping httpd:                                            [  OK  ]
Starting httpd:                                            [  OK  ]

[root@cobbler tools]# cobbler sync
task started: 2017-11-07_145244_sync
task started (id=Sync, time=Tue Nov  7 14:52:44 2017)
running pre-sync triggers
cleaning trees
removing: /var/lib/tftpboot/pxelinux.cfg/default
removing: /var/lib/tftpboot/grub/efidefault
removing: /var/lib/tftpboot/grub/images
removing: /var/lib/tftpboot/s390x/profile_list
copying bootloaders
copying distros to tftpboot
copying images
generating PXE configuration files
#再次检查cobbler
[root@cobbler tools]# cobbler check
The following are potential configuration items that you may want to fix:

1 : some network boot-loaders are missing from /var/lib/cobbler/loaders, you may run ‘cobbler get-loaders‘ to download them, or, if you only want to handle x86/x86_64 netbooting, you may ensure that you have installed a *recent* version of the syslinux package installed and can ignore this message entirely.  Files in this directory, should you want to support all architectures, should include pxelinux.0, menu.c32, elilo.efi, and yaboot. The ‘cobbler get-loaders‘ command is the easiest way to resolve these requirements.
2 : debmirror package is not installed, it will be required to manage debian deployments and repositories
3 : fencing tools were not found, and are required to use the (optional) power management features. install cman or fence-agents to use them

Restart cobblerd and then run ‘cobbler sync‘ to apply changes. #问题解决完毕

[root@cobbler ~]# mount /dev/cdrom /mnt/
mount: block device /dev/sr0 is write-protected, mounting read-only
[root@cobbler ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda2        19G  1.6G   16G   9% /
tmpfs           931M     0  931M   0% /dev/shm
/dev/sda1       190M   35M  146M  19% /boot
/dev/sr0        3.7G  3.7G     0 100% /mnt