yum is a package manager, based on rpm package management, which can automatically download rpm packages from a specified location, automatically handle dependencies, and install all packages at one time, without the need for tedious downloads and installations again and again
Common options of yum command: yum list all ###List all installation packages yum list installed ###List installed yum list available ###List not installed yum remove software ###Uninstall software yum install software ###install software yum search keywords ###Search for software related to keywords yum whatprovides file ###Search for packages that contain this file yum reinstall software ###Reinstall software yum localinstall third-party software ###Install third-party software and resolve dependencies yum info software ###Query software information yum groups list ###List software groups yum groups install ###Install group yum groups remove ###Uninstall group yum groups info ###View group information
local source configuration
[root@foundation43 ~]# ostnamectl ##View system version
Static hostname: foundation43.ilt.example.com
Icon name: computer-laptop
Chassis: laptop
Machine ID: 5dda1580e9474d0ab1a33787bad19b3b
Boot ID: cc6ec8b27bd44f3f8ac0e0aa20d25035
Operating System: Red Hat Enterprise Linux Server 7.2 (Maipo) ##System Version
CPE OS Name: cpe:/o:redhat:enterprise_linux:7.2:GA:server
Kernel: Linux 3.10.0-327.el7.x86_64
Architecture: x86-64
Find the corresponding iso file to mount
[root@foundation43 ~]# cd /iso ##Find the CD corresponding to the system [root@foundation43 iso]# ll total 11309056 -rw-rw-r-- 1 qemu qemu 3743416320 Apr 22 2016 rhel-server-7.0-x86_64-dvd.iso -rw-rw-r-- 1 kiosk kiosk 4043309056 Jul 25 2016 rhel-server-7.2-x86_64-dvd.iso -rw-rw-r-- 1 kiosk kiosk 3793747968 Sep 16 2017 rhel-server-7.3-x86_64-dvd.iso [root@foundation43 iso]# mkdir /mnt/rhel7.2 ##Create a hanging directory [root@foundation43 iso]# mount rhel-server-7.2-x86_64-dvd.iso /mnt/rhel7.2 mount: /dev/loop0 is write-protected, mounting read-only ##Mount the iso image to the mount directory
Configure local sources
[root@foundation43 iso]# cd /etc/yum.repos.d/ ##Switch to the yum library configuration file directory
[root@foundation43 yum.repos.d]# mkdir repo.bak ##Create a backup directory
[root@foundation43 yum.repos.d]# mv * repo.bak/ ##Backup existing files
[root@foundation43 yum.repos.d]# vim yum.repo ##Create a new repo file
[rhel7.2] ##source name
name=rhel7.2 ##source description
baseurl=file:///mnt/rhel7.2 ##Source address
gpgcheck=0|1 ##Whether to detect the gpgkey of the source
#gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release ##The native gpgkey file, this parameter is required if the gpgkey of the source is detected
#enabled=1 ##Whether the source is valid, not required
[root@foundation43 yum.repos.d]# yum clean all ##Clean yum cache
Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-
: manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Cleaning repos: rhel7.2
Cleaning up everything
Shared source build
Install httpd after the local source is successfully built
[root@foundation43 yum.repos.d]# yum install httpd ##Install apache
Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-
: manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Resolving Dependencies
--> Running transaction check
---> Package httpd.x86_64 0:2.4.6-40.el7 will be installed
--> Processing Dependency: httpd-tools = 2.4.6-40.el7 for package: httpd-2.4.6-40.el7.x86_64
--> Processing Dependency: libapr-1.so.0()(64bit) for package: httpd-2.4.6-40.el7.x86_64
--> Processing Dependency: libaprutil-1.so.0()(64bit) for package: httpd-2.4.6-40.el7.x86_64
--> Running transaction check
---> Package apr.x86_64 0:1.4.8-3.el7 will be installed
---> Package apr-util.x86_64 0:1.5.2-6.el7 will be installed
---> Package httpd-tools.x86_64 0:2.4.6-40.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================
Package Arch Version Repository Size
================================================================================
Installing:
httpd x86_64 2.4.6-40.el7 rhel7.2 1.2 M
Installing for dependencies:
apr x86_64 1.4.8-3.el7 rhel7.2 103 k
apr-util x86_64 1.5.2-6.el7 rhel7.2 92 k
httpd-tools x86_64 2.4.6-40.el7 rhel7.2 82 k
Transaction Summary
================================================================================
Install 1 Package (+3 Dependent packages)
Total download size: 1.4 M
Installed size: 4.3 M
Is this ok [y/d/N]: y
Downloading packages:
--------------------------------------------------------------------------------
Total 28 MB/s | 1.4 MB 00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : apr-1.4.8-3.el7.x86_64 1/4
Installing: apr-util-1.5.2-6.el7.x86_64 2/4
Installing : httpd-tools-2.4.6-40.el7.x86_64 3/4
Installing : httpd-2.4.6-40.el7.x86_64 4/4
Verifying : httpd-tools-2.4.6-40.el7.x86_64 1/4
Verifying : apr-1.4.8-3.el7.x86_64 2/4
Verifying : apr-util-1.5.2-6.el7.x86_64 3/4
Verifying : httpd-2.4.6-40.el7.x86_64 4/4
Installed:
httpd.x86_64 0:2.4.6-40.el7
Dependency Installed:
apr.x86_64 0: 1.4.8-3.el7 apr-util.x86_64 0: 1.5.2-6.el7
httpd-tools.x86_64 0:2.4.6-40.el7
Complete!
[root@foundation43 yum.repos.d]# systemctl start httpd.service ##Restart the service
[root@foundation43 yum.repos.d]# systemctl enable httpd.service ##Startup
Created symlink from /etc/systemd/system/multi-user.target.wants/httpd.service to /usr/lib/systemd/system/httpd.service.
[root@foundation43 yum.repos.d]# systemctl stop firewalld.service ##Close the firewall
[root@foundation43 yum.repos.d]# systemctl disable firewalld.service ##Disable the firewall to start at boot
Removed symlink /etc/systemd/system/basic.target.wants/firewalld.service.
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
[root@foundation43 yum.repos.d]# mkdir /var/www/html/rhel7.0 ##Create a shared directory
[root@foundation43 yum.repos.d]# mount /iso/rhel-server-7.0-x86_64-dvd.iso /var/www/html/rhel7.0 ##Mount the image to the shared directory
The browser accesses the ip address/rhel7.0 to test the shared source. If the access is successful, the sharing is successful.
Client configuration yum source
[root@desktop ~]# cd /etc/yum.repos.d/ ##Move to the repo configuration directory [root@desktop yum.repos.d]# mkdir repo.bak ##Create backup directory [root@desktop yum.repos.d]# mv *repo.bak ##Backup file [root@desktop yum.repos.d]# vim yum.repo ##Configuration source [rhel7.0] name=rhel7.0 baseurl=http://172.25.254.43/rhel7.0 ##Network source path gpgcheck=0 [root@desktop yum.repos.d]# yum clean all ##Empty cache Loaded plugins: langpacks Cleaning repos: rhel7.0 ##Current source Cleaning up everything [root@desktop yum.repos.d]# yum install zsh ##Install software Loaded plugins: langpacks rhel7.0 | 4.1 kB 00:00 (1/2): rhel7.0/group_gz | 134 kB 00:00 (2/2): rhel7.0/primary_db | 3.4 MB 00:00 Resolving Dependencies --> Running transaction check ---> Package zsh.x86_64 0:5.0.2-7.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: zsh x86_64 5.0.2-7.el7 rhel7.0 2.4 M Transaction Summary ================================================================================ Install 1 Package Total download size: 2.4 M Installed size: 5.6 M Is this ok [y/d/N]: y Downloading packages: zsh-5.0.2-7.el7.x86_64.rpm | 2.4 MB 00:00 Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : zsh-5.0.2-7.el7.x86_64 1/1 Verifying : zsh-5.0.2-7.el7.x86_64 1/1 Installed: zsh.x86_64 0:5.0.2-7.el7 Complete!After the configuration is successful, the software is successfully installed through the network source