How to Upgrade RHEL 8.3 to RHEL 8.4 – Guide
Red Hat Enterprise Linux 8.4 is now available, and includes a number of improvements and enhancements for developers, designers, and production teams. You can now get the latest version from Red Hat’s official website. ..
RHEL 8.4 is a new release of the RHEL operating system. It includes many new features, including support for the CentOS 7 operating system. You can upgrade to RHEL 8.4 by using the dnf command line option.
RHEL 8.4 provides a comprehensive roadmap that allows teams to work together on a single open platform that provides the tools and analytics needed to design and manage these systems. RHEL 8.4 includes most up-to-date upTools, improved container features and programming languages, allowing developers to get any task done faster with a new set of code.
Redis 6, Python 3.9, MariaDB 10.5, PostgreSQL 13, LLVM / Clang, GCC 10, Go 1.15 and Rust 1.49 are among the new software improvements in Red Hat Enterprise Linux 8.4. ..
Intel Tiger Lake GPUs are now supported on RHEL when it comes to hardware support. Xe and UHD graphics are included on these GPUs.
How to Upgrade RHEL 8.3 to RHEL 8.4
Before starting the significant RHEL 8.x upgrade, make sure that you have backups of RHEL 8.x.
sudo su Second, type the following command to install the required packages: apt-get install build-essential libssl-dev libreadline6-dev libncurses5-dev zlib1g-dev Third, type the following command to create a new directory: mkdir ~/src/github.com/username/projectname && cd ~/src/github.com/username/projectname ..
ssh -L ec2-user@ rhel-8-ec2-box ssh -R ec2-user@ rhel-8-ec2-box
ls -l /sys/kernel/debug
-rw-r–r– 1 root root 4096 Dec 2 03:12 debug -rw-r–r– 1 root root 4096 Jan 5 10:01 init -rw-r–r– 1 root root 4096 Feb 14 10:01 proc -rw——- 1 root root 4096 Mar 2 03:12 sysfs
Linux 3.10.0-327.36.2.el7.x86_64 #1 SMP Tue Oct 25 21:11:48 EDT 2016 x86_64 x86_64 x86_64 GNU/Linux ..
- Update RHEL 8.3 using Ansible To update RHEL 8.3 using Ansible, you can use the following commands:
ansible-update -a -u root -p 1
#1: Make backups
When updating your distribution, always make a backup of your important files and data before doing anything. You may also want to use a modern shell such as Bash or any other one that supports backups.
#2: Check for Updates
git status
$ sudo dnf check-update -y
#3: Upgrading RHEL 8.3 to 8.4
update-manager –install
$ sudo dnf upgrade -y
#4: Reset RHEL 8.3 Box
reboot
shutdown
Shutting down the computer now.
- Check the system’s status with the following command:
systemctl status
- Check the kernel version with the following command:
uname -a
- Check for any errors in the upgrade process with the following commands:
rpm -qa | grep upgrade # rpm -e –nodeps upgrade
After upgrading to RHEL 8.4, verify that everything is working as expected by running some simple commands. First, check your system’s status to make sure everything is up and running correctly. Then, check your kernel version to make sure there were no unexpected issues during the upgrade process. Finally, if you notice any problems during or after upgrading, run some diagnostic commands to help track them down. ..
The output of the uname command shows that the system is running Ubuntu 12.04. The cat command prints out all of the files in the /etc/os-release directory, and the tail -f command prints out all of the files in the /var/log/logfilenames directory. The grep -i ‘err | warn | cri’ command finds any errors or warnings in these files, and then prints out these messages. The ss -tulpn command prints out a list of all active processes on the system.
Final note
How to Upgrade RHEL 8.3 to RHEL 8.4 If you are looking to upgrade your CentOS 7 installation to CentOS 8.3 or RHEL 8.4, we have put together a guide that will help you do just that. In this article, we will cover the following topics:
- What is RHEL 8.3 and what is it different from RHEL 7?
- How do I upgrade my system?
- What are the steps involved in upgrading my system?
- After upgrading, what should I do next?
