Step 3: Check for Updates sudo yum check-update ~]# sudo yum check-update If this is production server and you are running your apps and services in this then please make sure to take complete backup once before starting the update in case your apps won't support the updated packages,you will have your backup. Upgrade CentOS 7 Step 1: Check Current OS Version cat /etc/redhat-release ~]# cat /etc/redhat-releaseĬentOS Linux release (Core) Step 2: Make sure backup is taken for entire Apps & Services In this article, i will take you through the steps to update or upgrade CentOS 7.0 / 7.1 / 7.2 / 7.3 / 7.4 / 7.5 / 7.6 to CentOS 7.7.ĬentOS is a Linux distribution that provides a free, community-supported computing platform functionally compatible with its upstream source, Red Hat Enterprise Linux.
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