Create Local YUM Repository with DVD in RHEL 7

Create Source

Mount the CD/DVD ROM on any directory of your wish. For testing, mount it on /cdrom.

#mkdir /cdrom

#mount /dev/cdrom /cdrom

Create Repo file

Before creating a repo file, move your existing repo files present in /etc/yum.repos.d directory, if not required.

#mv /etc/yum.repos.d/*.repo /tmp/

Create the new repo file called cdrom.repo under /etc/repos.d directory.

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

Add the following details.

[LocalRepo]

name=LocalRepository

baseurl=file:///cdrom

enabled=1

gpgcheck=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

Where,

[LocalRepo] = Repository Name which will be displayed during package installation

name = Name of the repository

baseurl = Location of the package

Enabled = Enable repository

gpgcheck = Enable secure installation

gpgkey = Location of the key

gpgcheck is optional (If you set gpgcheck=0, there is no need to mention gpgkey)

Install Package from Local DVD YUM repository

Clear the repository cache by issuing the following command.

#yum clean all

Let’s install the vsftpd package from the local repository.

#yum install vsftpd

 

How to mount CD/DVD ROM on CentOS / RHEL Linux

System

CentOS 6/7/8, RHEL 6/7/8

How to mount CD/DVD ROM on CentOS / RHEL Linux step by step instructions

Locate CD/DVD block device: First we need to find a correct CD/DVD block device. To do this execute a command blkid as root user:

# blkid 

/dev/sda1: UUID="d9704e79-b05e-4c9d-b94a-09643ba70592" TYPE="xfs" PARTUUID="83288aa1-01"

/dev/sda2: UUID="21291424-9d73-4c7e-b039-ce311702c75f" TYPE="swap" PARTUUID="83288aa1-02"

/dev/sr0: UUID="2019-08-15-21-52-52-00" LABEL="CentOS-8-BaseOS-x86_64" TYPE="iso9660" PTUUID="3e04f576" PTTYPE="dos"

Take a note of the relevant block device eg. /dev/sr0 and optionally also take a note of the shown UUID 2019-08-15-21-52-52-00.

Create Mount Point:
Mount point will be a directory where you wish to mount your CD/DVD drive. It can be any arbitrary directory. For example in this case we will be using /media/iso as a directory mount point:

# mkdir /media/iso 

Mount CD/DVD:
We are now ready to mount CD/DVD by using the mount command:

# mount /dev/sr0 /media/iso/

mount: /media/iso: WARNING: device write-protected, mounted read-only.

At this point you should be able to access all files on your CD/DVD drive:

   $ ls /media/iso/

   AppStream  BaseOS  EFI  images  isolinux  media.repo  TRANS.TBL

Permanent CD/DVD mount:

To mount your drive permanently edit /etc/fstab by adding the following line. Change UUID and mount point to fit your environment:

UUID=2019-08-15-21-52-52-00             /media/iso                iso9660 ro,user,auto  0 0

Once ready mount the CD/DVD by:

   # mount /media/iso/