"Linux Essentials" 25, Kickstart unattended installation Linux system

1, Anaconda Introduction

Anaconda:fodora Maintenance of Linux system installation program

Anaconda divides the entire Linux system installation process into 2 phases:

Pre-installation configuration:       

Select keyboard type, language during installation , supported languages, time zone

Select the disk device to use, partition format, select the package to install

Set the administrator password, whether to start iptables, whether to enable SELinux

Installation phase:

Create a root file system on the target disk

To install the selected package to the destination disk

The Anaconda program can set up various configurations of the system installation interactively, or it can read Anaconda configuration file anaconda.conf to set, Anaconda-ks.cfg also called Kickstart file.

System pre-installation configuration is divided into two categories:

Required Items:

Must be configured in the Kickstart file, otherwise the Anaconda program will stop running and wait for configuration to complete.

Available options:

2. Components of the Kickstart file

Command segment: for configuring the system

Install indicates installation system

text indicates that the installation system

Part Partition

Firewall Firewall settings

Package segment: Specify the package group to install (@ Group name) and package (package name), one per line

Using the%packages ID,% identifies the end of the package segment

@Base Package Group

lftp Bag

Script segment: non-mandatory

%pre : Pre-installation script before security process starts

The operation can be performed in a small, limited environment, because only the isolinux environment

%post: Scripts that are executed after all package installation is complete

At this point, the shell environment has a complete sense

After each installation of the system, the kickstart file for this installation system is generated in the Roo user's home directory:

[[email protected] ~]# lsanaconda-ks.cfg  install.log  install.log.syslog[[ email protected] ~]# cat anaconda-ks.cfg # kickstart file  Automatically generated by anaconda. #version =develinstallcdrom    # Set the location of the installation tree (various files depending on the system installation, such as software RPM packages) to support Http,ftp,nfslang en_us. utf-8keyboard usnetwork --onboot no --device eth0 --bootproto dhcp -- Noipv6network --onboot no --device eth1 --bootproto dhcp --noipv6rootpw   --iscrypted $6$pldqkqeo8y.e2/g3$y/tgve0wt/v9. Fevxfsl.smfftmlpmhpzkdmfrzymnzi5xa77gjycdzcix0e3gw8/m7htbfbjcsp8zbshcw7y1firewall --service=sshauthconfig  --enableshadow --passalgo=sha512selinux --enforcingtimezone Asia/Shanghaibootloader  --location=mbr --driveorder=sda --append= "Crashkernel=auto rhgb quiet" # The  Following is the partition information you requested                                                        # "#" is followed by a space indicating the comment information # note that any  Partitions you deleted are not expressed# here so unless you  clear all partitions first, this is# not guaranteed to work #clearpart  --none             # "#" No space after the expression should normally be enabled, but each installation of the system, the choice is not the same, automatically annotated #part /boot --fstype=ext4 --size=500#part / - -fstype=ext4 --size=18459#part swap --size=2000repo --name= "CentOS"   --baseurl= cdrom:sr0 --cost=100%packages@Chinese-support@core@desktop-platform-devel@development@server-platform-devel@server-policy@workstation-policydesktop-fil The e-utils-jpackage-utils      # -indicates that the package is not installed, which may be within a package group, but if the package is dependent on a package, it will still be installed,- Number does not take effect%end                  #  indicates end of package segment

"Linux Essentials" 25, Kickstart unattended installation Linux system