Upgrade RHEL 7 to RHEL 8 using Leapp – Resolving high risks from leapp-report.txt and answerfile
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Upgrade RHEL 7 to RHEL 8 using Leapp – Resolving high risks from leapp-report.txt and answerfile
If you are working with Linux environment, you must have once in your carrier ended up with the upgradation of rhel servers.
We use leapp module to upgrade rhel servers
perform the following steps:
1. install leapp in your rhel 7 – yum install leapp -y
2. upgrade using leapp – leapp upgrade –reboot
3. check all the risks which are high inhibitor if there is some issues which prevent upgradation. Low risk or medium risk can be remediate after the upgradation also.
4. Answer all the answers in the answerfile
5. Check the redhat version installed – cat /etc/redhat-release it will show you the upgraded version of rhel
Analyzing the Leapp Report
The /var/log/leapp/leapp-report.txt identifies potential risks to the upgrade. The risks are classified as high, medium, or low. A high risk that would prevent an upgrade will be further classified as an inhibitor. The report summarizes the issues behind the identified risk and also suggests remediations if any are needed.
Ensure that you complete the recommended remedies to clear particularly those risks that are labeled high and can inhibit the upgrade process.
After addressing the reported risks, run the preupgrade command again. In the regenerated report, verify that all serious risks are cleared.
In addition to completing the recommendations of /var/log/leapp/leapp-report.txt, you must also provide answers to all of the items in /var/log/leapp/answerfile.
An inhibitor might be reported both in /var/log/leapp/answerfile and /var/log/leapp/leapp-report.txt, with the latter file providing an alternative remedy. Despite overlapping contents, always examine both files to ensure a successful upgrade.
The /var/log/leapp/answerfile file consists of specific verification checks that Leapp performs on the system. A verification check contains information about the system and also prompts you for confirmation on the action to be performed. The file provides context and information to help guide you on the response required.
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