Migrating from centos 8 to centos stream
The future of the CentOS Project is CentOS Stream, and over the next year they are shifting focus from CentOS Linux, the rebuild of Red Hat Enterprise Linux (RHEL), to CentOS Stream.CentOS Project that it is ending the life of traditional CentOS version which we all have been using for a long time.
If you are running CentOS 8 on your Servers then you need to migrate your Server to CentOS 8 Stream version before the end of 2021.If you plan to upgrade from CentOS 7 to CentOS 8, you can skip or avoid upgrading to CentOS 8 as CentOS 7 will get support until 2024.In this article we will show you how to migrate from centos 8 server to centos stream.
Its better to take backup of important data before migrating, just in case.
Step 1: update using dnf
First we need to update centos 8 version using dnf.
sudo dnf updateAfter update check version of centos.
[root@localhost ~]# cat /etc/centos-release
CentOS Linux release 8.3.2011Also Read -> How to Configure NIC bonding on Centos 7
Step 2: Install centos stream
Now we need to install the CentOS 8 Stream release repositories using below command.
dnf install centos-release-stream
output:
[root@localhost ~]# dnf install centos-release-stream
Last metadata expiration check: 2:35:36 ago on Mon 08 Mar 2021 04:44:55 AM EST.
Dependencies resolved.
========================================================================================================================================================================
Package Architecture Version Repository Size
========================================================================================================================================================================
Installing:
centos-release-stream x86_64 8.1-1.1911.0.7.el8 extras 11 k
Transaction Summary
========================================================================================================================================================================
Install 1 Package
Total download size: 11 k
Installed size: 6.6 k
Is this ok [y/N]: y
Downloading Packages:
centos-release-stream-8.1-1.1911.0.7.el8.x86_64.rpm 28 kB/s | 11 kB 00:00
------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 7.9 kB/s | 11 kB 00:01
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Installing : centos-release-stream-8.1-1.1911.0.7.el8.x86_64 1/1
Verifying : centos-release-stream-8.1-1.1911.0.7.el8.x86_64 1/1
Installed products updated.
Installed:
centos-release-stream-8.1-1.1911.0.7.el8.x86_64
Complete!
Also Read -> How to Install Apache CouchDB on Centos 8
Step 3: Replace repository
Replace all existing CentOS Linux repositories with CentOS Stream repositories
sudo dnf swap centos-{linux,stream}-reposoutput:
[root@localhost ~]# dnf swap centos-{linux,stream}-repos
CentOS-Stream - AppStream 1.3 MB/s | 6.6 MB 00:05
CentOS-Stream - Base 748 kB/s | 2.3 MB 00:03
CentOS-Stream - Extras 6.4 kB/s | 8.9 kB 00:01
Last metadata expiration check: 0:00:01 ago on Mon 08 Mar 2021 07:29:48 AM EST.
Dependencies resolved.
========================================================================================================================================================================
Package Architecture Version Repository Size
========================================================================================================================================================================
Installing:
centos-stream-release noarch 8.4-1.el8 Stream-BaseOS 21 k
replacing centos-linux-release.noarch 8.3-1.2011.el8
replacing centos-release-stream.x86_64 8.1-1.1911.0.7.el8
centos-stream-repos noarch 8-2.el8 extras 19 k
Removing:
centos-linux-repos noarch 8-2.el8 @BaseOS 26 k
Transaction Summary
========================================================================================================================================================================
Install 2 Packages
Remove 1 Package
Total download size: 40 k
Is this ok [y/N]: y
Also Read -> How to Install Odoo 14 on Centos 8
Step 4: migrate centos linux to centos stream
Now migrate CentOS Linux 8 to CentOS Stream 8 with following command.
sudo dnf distro-syncThis will take some time to upgrade and downgrade the packages. Once the CentOS Stream 8 migration is completed, run the following command.
[root@localhost ~]# cat /etc/redhat-release
CentOS Stream release 8
That's it. now you have successfully migrated from centos 8 to centos stream.
