Merge pull request #98 from EuroLinux/migrate2rocky

intructions for migration to RockyLinux

Author: paadpi

docs/HowTo/migrate_to_rocky_linux.md

@@ -0,0 +1,33 @@
+# Procedure for migrating EuroLinux to RockyLinux
+
+1. Preparation:
+   - Ensure a stable and reliable internet connection throughout the entire migration process. This is critical for downloading scripts and packages.
+   - Create a full backup of the system to be migrated.
+   - Test the recovery procedure to ensure you can restore the system in case of interruption or errors during migration.
+   - It is recommended to run the migration in a session manager, e.g., tmux.
+
+2. Download migration scripts:
+   - For EL8:
+     ```
+     curl -O https://raw.githubusercontent.com/EuroLinux/rocky-tools/feature/vaulted_migration/migrate2rocky/migrate2rocky.sh
+     ```
+   - For EL9:
+     ```
+     curl -O https://raw.githubusercontent.com/EuroLinux/rocky-tools/feature/vaulted_migration/migrate2rocky/migrate2rocky9.sh
+     ```
+
+3. Migration:
+   - Migrating EuroLinux 8 to RockyLinux 8:
+     ```
+     sudo bash migrate2rocky.sh -r
+     ```
+
+   - Migrating EuroLinux 9.4 to RockyLinux 9.4:
+     - If RockyLinux has not yet released version 9.5:
+       ```
+       sudo bash migrate2rocky9.sh -r
+       ```
+     - If RockyLinux has already released version 9.5 or higher:
+       ```
+       sudo bash migrate2rocky9.sh -rv 9.4
+       ```