How to configure YUM Server in Red hat linux 6

In this post, We will get know how to install or configure the Yum server on Red Hat Linux 6 operating system.

As you know their are several ways using which we can install the packages or rpm on the server. Please find the below step by step method to install the packages using YUM.

1. In the initial step please install the cd in cdrom and open a terminal for mount the cd in /mnt directory.

#mount –o loop /dev/cdrom /mnt

Here, we mount the CD of ISO in /mnt direcoty. You must enough space on /mnt folder before mounting this ISO.

2. Now in second step we will create a directory where we make a YUM repository.

#mkdir /rhel6

In this directory we will install all the YUM configuration files.

3. Now we will copy all the files from mount folder to newly created folder.

#cp –rvf /mn/* /rhel6

4. In this step, we will install the required packages which is required for create a repo on the server.

#cd /rhel6/Packages 

#rpm –ivh python*

#rpm –ivh createrepo*

These above packages is required for repostiory creation in YUM server.

5. Now move back again repodata directory and create a new repo for repository installation.

#createrepo  –v /rhel6/Packages

This is install all the packages on /rhel6 directory which is used for YUM configuration.

6. In this step we will create a new repo files in this directory.

#cd /etc/yum.repos.d/

#rm –rf *

#vi ss.repo

[Packages]

baseurl=file:///rhel6/Packages 

gpgcheck=0

enable=1

In this step if any exsiting repo if you found please remove it and create a new repo.

7. In the final step we will clean the repo and check the list of all rpm's using below commands.

#yum clean all

#yum list

Hope, using this post, you can easily install and configured the packages on the Red Hat Operating system. Please comment on the post if you encouter any issue.

How to Create Local YUM Repository on CentOS 7 / RHEL 7

In this post, I describes how to setup a local Yum repository on CentOS 7 & RHEL 7 server operating system.

The local YUM repository is the most significant way to perform any type of package installation without any internet connection. If you have to install software, security updates and fixes often in multiple systems in your local network, then having a local repository is an efficient way. 

All required packages are downloaded over the fast LAN connection from your local server, so that it will save your Internet bandwidth and reduces your annual cost of Internet.

Now, please find the step by step method to create a YUM repository on RHEL 7 & CentOS 7.

Mount the Local Media:

In this step we mount our CentOS 7 / RHEL 7 installation DVD. For example, let us mount the installation media on /mnt directory.

#mount -o loop /dev/cdrom /mnt

In my Linux machine i will insert the ISO on cdrom and mount it on /mnt directory.

Copy or Extract the Media:

In this step, we will extract or copy iso files to local machine. For this work we will create a one mount point directory and copy all the packages files from /mnt.

#mkdir /centos

#cp -rvf /mnt/* /centos

So all the packages are copied on the "/centos" directory.

Install repository packages:

In this step, we will create repository but before this we need to install the "createrepo" rpm on the YUM server.

For createrepo, you need to install some dependency rpm which are listed in "Packages" folder.

#rpm -ivh libxml2-python-2.9.1-5.el7_0.1.x86_64.rpm

#rpm -ivh python-deltarpm-3.6-3.el7.x86_64.rpm

#rpm -ivh deltarpm-3.6-3.el7.x86_64.rpm

#rpm -ivh createrepo-0.9.9-23.el7.noarch.rpm

Once these required packages is installed we create the repo using createrepo command.

#createrepo -v /centos/Packages

Remove the Online Repository:

Please remove the old repository from /etc/yum.repos.d directory. In this directory all the default local centOS / RHEL repository are exist.

#rm -rf /etc/yum.repos.d/*

Create Local Repository:

In this step we will create the local repostiory which is always kept as a local. Using this local repo we can install all the packages and their dependency.

#vi /etc/yum.repos.d/local.repo

[Packages]

baseurl=file:///centos/Packages

gpgcheck=0

enable=1

After save the file your local.repo repository has been created. In next step we will enable it.

Enable Local Repository:

After successfully creation of YUM repository we will enable it.

#yum clean all

#yum repolist all

Using this repolist command you can check the newly created and existing repository on the server. After that you can easily install the pacakges using YUM in RHEL 7 & CentOS 7.

ifconfig command not found in centos 7 minimal installation

By default in Centos 7 minimal installation , ifconfig command is not found, so for obtenining this command , first you need to check which packages yum provide for this.

[root@localhost]# yum provides ifconfig

Loaded plugins: fastestmirror
Repository 'Packages' is missing name in configuration, using id
Loading mirror speeds from cached hostfile
Packages/filelists_db                                                                                                                              
No matches found

Note: here no packages is installed on the system.

So, using yum we will install the net-tool rpm which is required for ifconfig command

[root@localhost]# yum install net-tools*

Loaded plugins: fastestmirror
Repository 'Packages' is missing name in configuration, using id
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package net-tools.x86_64 0:2.0-0.17.20131004git.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

 Package                  Arch           Version                                   Repository                    Size

Installing:
 net-tools                x86_64         2.0-0.17.20131004git.el7         Packages                        304 k

Transaction Summary
========================================================================
Install  1 Package

Total download size: 304 k
Installed size: 917 k
Is this ok [y/d/N]: y
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : net-tools-2.0-0.17.20131004git.el7.x86_64                                                                     1/1
Verifying  : net-tools-2.0-0.17.20131004git.el7.x86_64                                                                    1/1

Installed:
net-tools.x86_64 0:2.0-0.17.20131004git.el7

Complete!

Now run the ifconfig command after successfully installed the packages.

[root@localhost]# ifconfig -a
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.26.12.1  netmask 255.255.0.0  broadcast 192.26.255.255
        inet6 fe80::250:56ff:febf:f6  prefixlen 64  scopeid 0x20<link>
        ether 00:50:56:bf:00:f6  txqueuelen 1000  (Ethernet)
        RX packets 18939  bytes 1251073 (1.1 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 433  bytes 63109 (61.6 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 0  (Local Loopback)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0


[root@localhost]# yum provides ifconfig

Loaded plugins: fastestmirror
Repository 'Packages' is missing name in configuration, using id
Loading mirror speeds from cached hostfile
net-tools-2.0-0.17.20131004git.el7.x86_64 : Basic networking tools
Repo: @Packages
Matched from:
Filename: /usr/sbin/ifconfig