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https://github.com/iagor1/scripts_upgrade_rhel8_to_9
this scripts will upgrade any rhel 8 to rhel 9.3. More info on README.md
https://github.com/iagor1/scripts_upgrade_rhel8_to_9
redhat7 redhat8 rhel8 rhel9 script shellscript upgrade
Last synced: about 1 month ago
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this scripts will upgrade any rhel 8 to rhel 9.3. More info on README.md
- Host: GitHub
- URL: https://github.com/iagor1/scripts_upgrade_rhel8_to_9
- Owner: iagor1
- License: mit
- Created: 2024-04-19T21:48:32.000Z (7 months ago)
- Default Branch: main
- Last Pushed: 2024-04-30T16:53:44.000Z (7 months ago)
- Last Synced: 2024-05-02T08:41:29.443Z (7 months ago)
- Topics: redhat7, redhat8, rhel8, rhel9, script, shellscript, upgrade
- Language: Shell
- Homepage:
- Size: 16.6 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# RHEL 8 to RHEL 9 Upgrade Shell Scripts
## Description
This repository contains shell scripts designed to facilitate the upgrade process from RHEL 8 to RHEL 9.3. The inhibitors fixes in this repo if not fixed leapp will probably not upgrade your system.
First of all, to update rhel 8 to rhel 9.3 your server need to be in 8.9 to use leapp upgrade. With this command `subscription-manager release --set 8.9` after that we need to update with dnf.
#### About Leapp Warnings, i cant make sure the warning i got will be the same. In this scripts i fixed the following Inhibitors :
- Leapp inhibitor detected rpms with rsa/sha1 signature
- Inhibitor: cannot perform the vdo check of block devices
- Inhibitor: Firewalld Configuration AllowZoneDrifting Is Unsupported
## Features
- Automated upgrade process: The scripts automate the execution of key steps required to upgrade from RHEL 8 to RHEL 9, reducing manual intervention.
## Requirements
- RHEL 8 system
- Permission to register rhel systems
- Root access
## Usage
1. Clone this repository to your RHEL 8 system.
```bash
git clone https://github.com/iagor1/scripts_upgrade_rhel8_to_9.git
```
2. Run script
```bash
./config_pre_upgrade_rhel8.sh | tee output_pre_upgrade.txt
```
After this script system will reboot!
Finaly if you got the same warnings you can upgrade
```bash
./upgrade_rhel8.sh | tee output_upgrade.txt
```
*You may use nohup to run in backgroud and save the output*
3. Info about others Inhibitors check the file `others_inhibitors.md`
## Extra
If you are having long downtime at reboot you should consider modify SELinux autorelabel process to ignore dirs with large files before upgrade, after the upgrade you can `fixfiles restore`. This trick can avoid long downtime.
Link how to avoid downtime : https://access.redhat.com/solutions/7005567