Installaing rpms from iso file

Need to know , how to install rpms from an iso file ... easy job , just tarnsfer iso image file to your linux partition ( let say by ftp )and then mount as follows mount -o loop /tmp/RHEL.iso /mnt/cd1 and then you will get whole Linux image inside /mnt/cd1 directory. 

Next step would be to create a repo configuration file  like below

vi /etc/yum.repos.d/rhe72.repo

-----------------------

[Red_Hat_72]
baseurl=file:///mnt/cd1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY ** Put exact path where RPM-GPG_KEY file exists
gpgcheck=1  ** you can also ignore gpgcheck by setting its value to Zero
enabled=1

----------

then execute

yum clean all

and finally you can run 

yum repolist

which will show repository contents inside /mnt/cd1 filesystem