KVM Cobbler Unattended Batch installation operating system

KVM Cobbler Unattended Batch installation of operating systems

Cobbler: A tool for automated network installation systems that integrates PEX, DHCP, DNS, TFTPD, sync, and other services. For everyone to manage the installation of the operating system

Kvm:linux system comes with the virtualization software, self-find information learning.

Environment Description:

Cobbler

System: Centos_x86 6.8

Card:

ETH0:VM1 (Management) 10.10.100.131

Ech1:nat (Internet) DHCP

Kvm:

System: Centos_x86 6.8

Card:

ETH0:VM1 (Management) 10.10.100.130

Ech1:nat (Internet) DHCP

System Environment Readiness: (configured on two hosts)

Epel Source Configuration:

Yum-y Install wget

Wget-o/etc/yum.repos.d/epel.repo Http://mirrors.aliyun.com/repo/epel-6.repo

Initialize the configuration:

Yum-y install vim Lrzsz NTP htop

Firewall: SELinux configuration:

Service Iptables Stop

Chkconfig iptables off

Sed-i ' s/^selinux/selinux=disabled/'/etc/selinux/config

Crond Configuring synchronization system Time:

# rsync SYS time

0 */2 * * */usr/sbin/ntpdate time.windows.com

Cobbler

To install the relevant cobbler components:

Yum-y Install cobbler DHCP httpd xinetd tftp-server syslinux pykickstart debmirror cman fence-agents

Configuration related options:

Sed-i "S/server:127.0.0.1/server: $ (ifconfig eth0 | Awk-f ' [:]+ ' Nr==2{print $4} ')/g "/etc/cobbler/settings

grep--color "server:"/etc/cobbler/settings

Sed-i "S/manage_dhcp:0/manage_dhcp:1/g"/etc/cobbler/settings

Sed-i "S/manage_rsync:0/manage_rsync:1/g"/etc/cobbler/settings

grep--color ' ^manage_[a-za-z]\{4,\}\: '/etc/cobbler/settings

Sed-i "s/disable\t\t\t= yes/disable\t\t\t= no/g"/etc/xinetd.d/tftp

Sed-i "s/disable\t= yes/disable = no/g"/etc/xinetd.d/rsync

grep--color "Disable"/etc/xinetd.d/tftp/etc/xinetd.d/rsync

Cp/etc/cobbler/dhcp.template{,.bak}

Sed-i "s/192.168.1. [0-9]\{0,3\}/10.10.100.0/g "/etc/cobbler/dhcp.template

DHCP configuration description, here is only modified for its own network segment: After the global modification, the configuration is modified separately

Sed-i ' s/@dists = "Sid"/# @dists = "Sid"/'/etc/debmirror.conf

Sed-i ' s/@arches/# @arches;/'/etc/debmirror.conf

Start the service:

Service httpd Start

Service Cobblerd Start

Cobbler Get-loaders

# Configure the installation of the system root initial password, where the command is more cumbersome, because all can be used directly, so do not modify. Students can modify it for what they want.

Note that the string code generated here: not only to be configured in the settings file, but also to replace the ROOTPW entry in the Kickstarts (SAMPLE_END.KS) file

Sed-i "[Email protected]$ (grep--color-o ' \$[0-9a-za-z]\{0,\}\$[0-9a-za-z]\{0,\}\/[0-9a-za-z]\{0,\}\$[0-9a-za-z]\{  0,\}\. ' /etc/cobbler/settings) @$ (OpenSSL passwd-1-salt ' random-phrase-here ' 12345678 ') @ "/etc/cobbler/settings

Check the configuration:

Service Cobblerd Restart

Cobbler Check

To create a mirror:

mount/dev/cdrom/media/

Cobbler Import--path=/media--name=centos-6.8-x86_64-minimal--arch=x86_64

Ln-s/var/www/cobbler/links/centos-6.8-minimal-x86_64//var/www/cobbler/links/centos-6.8-x86_64

Cobbler distro Edit--name=centos-6.8-minimal-x86_64--ksmeta= "Tree=http://@@[email protected]@/cobbler/links/ Centos-6.8-x86_64 "

Create Profile:

Cobbler profile Add--name=centos-6.8-x86_64-minimal_base--distro=centos-6.8-minimal-x86_64--kickstart=/var/lib/ Cobbler/kickstarts/sample_end.ks

Synchronizing Data:

Cobbler Sync

Create System: (Students note that the system is created here; The main purpose is to install operating systems without human intervention.) The Mac is a copy of the virtual machine after the KVM was created. I have previously configured it, write the document directly)

Cobbler system Add--profile=centos-6.8-x86_64-minimal_base--name=centos-6.8-x86_64-minimal_base--interface=eth0- -mac=52:54:00:96:af:34--ip-address=10.10.100.241--netmask=255.255.255.0--gateway=10.10.100.131--static=1-- dns-name=10.10.100.131

KVM (premise: CPU support Virtualization):

To see if the CPU supports virtualization:

Intel:vmx

Amc:svm

Grep-ei--color "(VMX|SVM)"/proc/cpuinfo

To configure the NIC bridge:

Use eth0 here:

CP Ifcfg-eth0 IFCFG-BR0

Configuration:

[email protected] network-scripts]# cat Ifcfg-eth0

Device=eth0

Onboot=yes

Bridge= "Br0"

[email protected] network-scripts]# cat Ifcfg-br0

Device= "Br0"

Type= "Bridge"

onboot= "Yes"

Bootproto=static

ipaddr=10.10.100.130

Prefix=24

Delay=0

Restart the NIC to take effect

To install the relevant components:

Yum-y Install KVM QEMU-KVM qemu-kvm-tools libvirt && ln-sv/usr/libexec/qemu-kvm/usr/sbin/&& Service LIBVIRTD start && chkconfig LIBVIRTD on

Note: All hosts here are minimized, in order to use the management KVM convenient; this way, Virtual Machine Manager is installed on the KVM host.

Installation components:

Virtual Machine Manager VM Management Console Linux Installation

Yum-y Install Virt-manager

Xwindows Linux Installation

Yum groupinstall "X window System"-y

Here cobbler and KVM are basically installed: and notice a little KVM boot nic bridging: You need to close the Network management tool: NetworkManager, this is because the tool is not installed.

KVM Cobbler Unattended Batch installation operating system