Question: How to add cdrom to yum as repo?
Answer: If you want to add your cd or dvd to yum as repository, you to follow these instructions.
First make a backup of /etc/yum.repos.d, remove those old repo files and add a new file called local.repo with the following lines:
name=Local CD Repo
/mnt/cdrom is the location of CD mount. Change it as per your system’s configuration.
Once this is done, you can go ahead with
yum install to install packages from CDROM.