{"id":592,"date":"2015-08-29T17:21:27","date_gmt":"2015-08-29T17:21:27","guid":{"rendered":"https:\/\/www.armourinfosec.com\/?p=592"},"modified":"2020-04-11T01:20:10","modified_gmt":"2020-04-10T19:50:10","slug":"what-is-yum-rhel","status":"publish","type":"post","link":"https:\/\/www.armourinfosec.com\/what-is-yum-rhel\/","title":{"rendered":"What is YUM ? How to Install YUM in Linux ?"},"content":{"rendered":"

In this blog, we will learn about “What is YUM ?” and How to Install YUM in RHEL Linux with the local repository. YUM<\/code> is the primary tool for getting, installing, deleting, querying, and managing Red Hat Enterprise Linux RPM software packages from official Red Hat software repositories, as well as other third-party repositories. So let’s start to the point. You can also find Yum Commands<\/a> Cheat Sheet<\/strong> at the end of this blog.<\/p>\n

What is YUM?<\/h2>\n

YUM<\/strong>\u00a0(Yellowdog Updater Modified<\/strong>) is an open-source command-line as well as a graphical based package management tool for RPM<\/strong>\u00a0(RedHat Package Manager<\/strong>) \"what<\/a>based Linux systems. It allows users and system administrators to easily install, update, remove or search software packages on a system. It was developed and released by Seth Vidal<\/strong>\u00a0under\u00a0GPL<\/strong>\u00a0(General Public License<\/strong>) as an open-source, which means anyone can be allowed to download and access the code to fix bugs and develop customized packages. YUM<\/strong> uses numerous third-party repositories to install packages automatically by resolving their dependencies issues.<\/p>\n

 <\/p>\n

General Configuration file of yum is located at \/etc\/yum.conf<\/strong>
\nYou can see this file with any editor<\/p>\n

Installation of Yum Server with local repository<\/h3>\n

We can install a local repository for YUM with DVD\/ISO file. If you have DVD then Copy the entire Linux OS DVD’s content to Hard-drive. Insert DVD into DVD-RW and go to the mounting point of DVD.<\/p>\n

To make a directory (folder) on root.<\/p>\n

[root@localhost ~]# cd \/\r\n[root@localhost \/]# mkdir rhel7<\/pre>\n
To go on the mounting point of DVD. cd [Mounting Location]<\/p>\n
[root@localhost ~]# cd \/run\/media\/root\/rhel-server-7\/<\/pre>\n
Copy all entire Linux OS DVD’s into \/rhel7<\/strong> directory (folder)<\/p>\n
If you have an iso file of Rhel OS then follow how to mount ISO image in rhel<\/strong>.
\nGo where there you have copied the entire OS DVD. To go on the Packages Directory. Then Install the createrepo<\/strong> package. To install package<\/p>\n
It gives dependencies error. Then you have install depend packages<\/p>\n
# rpm -ivh deltarpm-*\r\n# rpm -ivh python- deltarpm-*<\/pre>\n
Then you have to again install the createrepo<\/strong> package<\/p>\n
To make “Createrepo” Database for the local repository which is used for YUM. Go to packages directory which is copied already. Go to the location of packages.<\/p>\n
Create repo database<\/p>\n
Or<\/p>\n
Create a file with repo as an extension and specify the YUM details in \/etc\/yum.repos.d<\/strong> directory (folder)<\/p>\n
yum.repos.d this is a directory which contains all repository. now we create our new repo with any editor.<\/p>\n
# vim rhel.repo\r\n[RHEL]\r\nname=local_repo\r\nbaseurl=file:\/rhel7\/Packages\/\r\n:wq!<\/pre>\n
 <\/p>\n
[rhel] :- Title of yum repo,\r\nname=rhel\u00a0 :- name of yum repo\r\nbaseurl=file:\/rhel7\/Packages\/ :- location of Rpm packages\r\ngpgcheck=0 :- verify rpm to RPM-GPG-key (gpgcheck=0 Disabal, gpgcheck=1 Enable)<\/pre>\n
 <\/p>\n
Now we can create successful YUM repository, Verify run the yum command<\/p>\n
# yum check\r\n# yum repolist all<\/pre>\n
Yum Commands Cheat Sheat<\/h4>\n
Click here<\/strong><\/a> to go the blog.<\/p>\n","protected":false},"excerpt":{"rendered":"
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