Upgrade and Downgrade Guide ​

This document describes how to upgrade openEuler 22.03 LTS to openEuler 22.03 LTS SP1. The operations for other versions are similar.

1. OS Installation ​

Obtain an openEuler 22.03 LTS image and install the OS by referring to the installation guide.

View the versions of openEuler and the kernel in the current environment.

2. Upgrade Execution ​

2.1 Adding the openEuler 22.03 LTS SP1 Repositories (openEuler-22.03-LTS-SP1.repo) ​

vi /etc/yum.repos.d/openEuler-22.03-LTS-SP1.repo

Add information about the following openEuler 22.03 LTS SP1 repositories and save and exit.

SP1_OS, SP1_everything, SP1_EPOL, SP1_debuginfo, SP1_source, SP1_update

2.2 Performing the Upgrade ​

dnf update | tee update_log

Note:

1. If an error is reported during the upgrade, run dnf update --skip-broken -x conflict_pkg1 |tee update_log to avoid the problem. If multiple packages conflict, use the -x conflict_pkg1 -x conflict_pkg2 -x conflict_pkg3 options to skip the packages and analyze, validate, and update the conflicted packages after the upgrade.
2. Options:
   --allowerasing: Allow erasing of installed packages to resolve dependencies.
   --skip-broken: Resolve dependency problems by skipping packages.
   -x: Used with --skip-broken to specify the packages to be skipped.

2.3 Rebooting the OS ​

reboot

3. Upgrade Verification ​

View the versions of openEuler and the kernel in the current environment.

4. Downgrade Execution ​

4.1 Performing the Downgrade ​

dnf downgrade | tee downgrade_log

4.2 Rebooting the OS ​

reboot

5. Downgrade Verification ​

View the versions of openEuler and the kernel in the current environment.