Table of Contents

Yum

YUM is the package management tool that help to install or update the package through the network or local, the same time it provides easy method to install a package with it’s dependent packages. Configuration files are under /etc directory, /etc/yum.conf is the mail global file that contains the global options such as cache directory,log directory etc… To add new or update the existing repository, you must got to the /etc/repos.d directory and create or open a file that ends on .repo respectively.

CDROM/DVD

First you must determine the name of the CD-ROM or DVD drive and there are 3 methods:

[a] dmesg Command

dmesg command is used to examine the Linux kernel ring buffer i.e. display bootup messages on screen. To find out if cdrom was detected or not, run: 

bash# dmesg | egrep -i --color 'cdrom|dvd|cd/rw|writer'

ata2.00: ATAPI: VMware Virtual IDE CDROM Drive, 00000001, max UDMA/33
sr0: scsi3-mmc drive: 1x/1x writer dvd-ram cd/rw xa/form2 cdda tray

[b] /proc/sys/dev/cdrom/info file name. 

bash# cat /proc/sys/dev/cdrom/info

CD-ROM information, Id: cdrom.c 3.20 2003/12/17

drive name:             sr0
drive speed:            1
drive # of slots:       1
Can close tray:         1
Can open tray:          1
Can lock tray:          1
Can change speed:       1
Can select disk:        0
Can read multisession:  1
Can read MCN:           1
Reports media changed:  1
Can play audio:         1
Can write CD-R:         1
Can write CD-RW:        1
Can read DVD:           1
Can write DVD-R:        1
Can write DVD-RAM:      1
Can read MRW:           1
Can write MRW:          1
Can write RAM:          1

bash#

[c] lsblk command 

bash# lsblk

NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    1   558G  0 disk
├─sda1   8:1    1   307M  0 part /boot
├─sda2   8:2    1   250G  0 part /datasql
├─sda3   8:3    1     6G  0 part [SWAP]
├─sda4   8:4    1     1K  0 part
└─sda5   8:5    1 301.7G  0 part /
sr0     11:0    1  1024M  0 rom

Mount CDROM/DVD

Insert the Red Hat Enterprise Linux Server DVD into your DVD-ROM drive and mount the CD/DVD ROM on the any directory of your wish, for testing mount it on /mnt/cdrom. 

bash# mkdir /mnt/cdrom

bash# mount /dev/sr0 /mnt/cdrom

Config Repository

Create a new repository file. 

bash# vi /etc/yum.repos.d/rhel-dvd.repo

[dvd]
name=DVD Repo
baseurl=file:///mnt/cdrom
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

Install from CDROM/DVD

Now you should be able to install from CDROM or DVD 

bash# yum install <packages>