Linux-based system installation (II)

CentOS System Installation:

CentOS 6.7 x86_64:

Minimal Install

To install boot options:

KS: Indicates the location of the kickstart file;

ks=

DVD Drive:ks=cdrom:/path/to/kickstart_file

Hard Drive:ks=hd:/device/path/to/kickstart_file

HTTP server:ks=http://host[:P Ort]/path/to/kickstart_file

FTP server:ks=ftp://host[:P Ort]/path/to/kickstart_file

HTTPS server:ks=https://host[:P Ort]/path/to/kickstart_file

Format of Kickstart file

Command segment:

Specify various pre-installation configuration options, such as keyboard type;

Required commands

Optional commands

Package segment:

Indicates the package to be installed, as well as the package group, including packages that are not installed;

%packages

@group_name

Package

-package

%end

Script segment:

%pre: Pre-installation script

Operating environment: Run the Micro Linux system environment on the installation media;

%post: Post-installation script

Operating Environment: Installation of the completed system;

Required commands in the command segment:

Authconfig: Authentication Mode configuration

Authconfig--enableshadow--passalgo=sha512

Bootloader: Define the installation location and related configuration of the bootloader

bootloader--location=mbr--driveorder=sda--append= "Crashkernel=auto rhgb quiet"

Keyboard: Setting the keyboard type

Keyboard US

Lang: Language type

Lang Zh_cn. UTF-8

Part: partition layout;

Part/boot--FSTYPE=EXT4--size=500

Part pv.008002--size=51200

ROOTPW: Administrator Password

ROOTPW--iscrypted $6$4yh15kmgdwoptbbw$sgax4dszwdaz4201.o97wvaqvjfhcisssqeokzh054junnobmo/rmma7h8zsd08.fm.z3br/ 67uffod1zbe0s.

TimeZone: Time zone

TimeZone Asia/shanghai

Additional: partition-related other directives

Clearpart: Clear Partition

Clearpart--none--DRIVES=SDA: Empty disk partition;

Volgroup: Creating a volume Group

Volgroup MYVG--pesize=4096 pv.008002

Logvol: Creating a logical volume

Logvol/home--FSTYPE=EXT4--name=lv_home--VGNAME=MYVG--size=5120

How to generate an encrypted password:

~]# OpenSSL passwd-1-salt ' OpenSSL rand-hex 4 '

Optional commands:

Install or upgrade: installation or upgrade;

Text: Installation interface type, text is TUI, default is GUI

Network: Configuring the Networking Interface

Network--onboot Yes--device eth0--bootproto DHCP--noipv6

Firewall: Firewall

Firewall--disabled

Selinux:selinux

SELinux--disabled

Halt, Poweroff, or reboot: Behavior after the installation is complete;

Repo: Indicate the repository used during installation;

Repo--name= "CentOS"--baseurl=cdrom:sr0--cost=100

URL: Indicates the repository used at the time of installation, but is in URL format;

URL--url=http://172.16.0.1/cobbler/ks_mirror/centos-6.7-x86_64/

Reference Official Document: "Installation Guide"

Disable the firewall after the system installation is complete:

CentOS 6:

# Service Iptables Stop

# chkconfig Iptables off

CentOS 7:

# Systemctl Stop Firewalld.service

# systemctl Disable Firewalld.service

Disable SELinux after system installation is complete:

To edit the/etc/sysconfig/selinux or/etc/selinux/config file, modify the value of the SELinux parameter to one of the following:

Permissive

Disabled

Immediate effect:

# Getenforce

# Setenforce 0

Customizing Kickstart Files:

# yum Install System-config-kickstart

# System-config-kickstart

Check for syntax errors:

# Ksvalidator

To create a disc image:

~]# mkisofs-r-j-t-v--no-emul-boot--boot-load-size 4--boot-info-table-v "CentOS 6 x86_64 Boot"-C Isolinux/boot.cat -B isolinux/isolinux.bin-o/root/boot.iso myboot/

Linux-based system installation (II)