4.1. Upgrading from Virtuozzo Hybrid Server 7¶

To upgrade in-place from Virtuozzo Hybrid Server 7 to an alpha build of Virtuozzo Hybrid Server 8, do the following:

1. If applicable, unregister the node from the Virtuozzo Automator management node and remove it from the Virtuozzo Storage cluster.

2. Install the upgrade tool:

   # yum install vzupgrade
   

3. Check the system for upgrade eligibility:

   # vzupgrade check
   No upgrade blockers found!
   <...>
   A report has been generated at /var/log/leapp/leapp-report.json
   A report has been generated at /var/log/leapp/leapp-report.txt
   <...>
   Answerfile has been generated at /var/log/leapp/answerfile
   

   If issues are found, investigate the logs in /var/log/leapp. In addition, note the packages that are marked as unknown. They may be removed during the upgrade.

4. Perform the upgrade:

   # vzupgrade install
   

   All virtual machines and containers will be stopped. Containers will also be checked for templates unsupported in Virtuozzo Hybrid Server 8.

   The upgrade tool will perform preparation steps and ask you to reboot to the kernel Vz-Upgrade-Initramfs to perform the upgrade.

5. Reboot to the Virtuozzo Hybrid Server 8 kernel to complete the upgrade.