How to Enable All Linux Yum Repositories – yum-config-manager yum repolist yum info

YUM Repositories are found under /etc/yum.repos.d and they are usually disabled. YUM Repos can be enabled in one go or by editing individual repo file as well.

Follow thig lab exercise to understand:

– how to enable a yum repo
– how to disable a yum repo
– how to enable all the YUM repositories in one go
– how to disable all the YUM repositories in one go
– how to build the local YUM repositories databse
– how to use yum-config-manager command
– how to install yum-config-manager command if it is not already present
– how to install a new YUM repo by directly using a URL or an Internet repo file
– how to check if a package is available or new updates are available

source

centos 8