CentOS Linux 8.2 (2004) released and here is how to upgrade it

CentOS Linux 8.2 (2004) released. It is a Linux distribution derived from RHEL (Red Hat Enterprise Linux) 8.2 source code. CentOS was created when Red Hat stopped providing RHEL free. CentOS 8.2 gives complete control of its open-source software packages and is fully customized for research needs or for running a high-performance website without the need for license fees. Let us see what’s new in CentOS 8.2 (2004) and how to upgrade existing CentOS 8.1.1199 server to 8.2.2004 using the command line or bash prompt.

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CentOS Linux 8.2 (2004) released

From the release note:

CentOS project announce the general availability of CentOS Linux 8. Effectively immediately, this is the current release for CentOS Linux 8 and tagged as 2004. Updates released since the upstream release are all posted, across all architectures. We strongly recommend every user apply all updates, including the content released today. This release supersedes all previously released content for CentOS Linux 8, and therefore we highly encourage all users to upgrade their machines. Information on different upgrade strategies and how to handle stale content is included in the Release Notes.

WARNING: Make a Backup. It is important to make a backup of your CentOS server/desktop before you do this. The author is not responsible for broken system without backups.

How to update to CentOS Linux 8.2 (2004)

We are going to note down the CentOS Linux 8 version by typing the following cat command:
# cat /etc/centos-release

CentOS Linux release 8.1.1911 (Core)

Make sure you find and note the Linux kernel version too:
# uname -mrs

Linux 4.18.0-147.8.1.el8_1.x86_64 x86_64

How to upgrade CentOS 8.1 to 8.2

We can update existing CentOS Linux 8 sever by just running any one of the following dnf command or yum command:
# dnf update
OR
# yum update

CentOS Linux 8 (2004) upgrade command
Finally, reboot the Linux server using the shutdown command:
# shutdown -r now
OR
# reboot

Verification

Verify that upgrade went smoothly with help of [nixmd name=”cat”]/grep command/egrep command as follows:
# uname -mrs
# cat /etc/centos-release
# dmesg | egrep -i 'err|warn|critical'
# tail -f /var/log/nginx/access_log
# tail -f /var/log/nginx/error_log

How to upgrade CentOS Linux 8.1 to 8.2

Conclusion

You learned how to update an existing CentOS Linux version 8.1 to 8.2 (2004) using the command line option. One can also grab updated ISO for full installation too. As always, read through the release notes here. Happy upgrades!

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Posted by: Vivek Gite

The author is the creator of nixCraft and a seasoned sysadmin, DevOps engineer, and a trainer for the Linux operating system/Unix shell scripting. Get the latest tutorials on SysAdmin, Linux/Unix and open source topics via RSS/XML feed or weekly email newsletter.

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