You can configure yum-cron, edit the file /etc/sysconfig/yum-cron, there are options to configure frequency, and notification alert. Update all packages and their dependencies Yum runs in interactive mode by default, If you know the process and transaction going to performed by Yum command you can use -y option with the command to automatically answer Yes to any question asked by Yum while updating packages. Yum will present the update information with package name and version including dependencies and then prompts you to ask whether you want to perform the update. The above output will show you the package name with CPU architecture, version of packages, and repository name where package is available. Using Yum package manager, you can check available update for installed packages in your system, as shown below: # yum check-update
In this section of YUM tutorial, we will learn to check available update and update packages, and also we will learn to upgrade system in off-line mode using Operating system’s ISO files. Additional Resources YUM Package Manager – Check and Update packages
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