Upgrading
This section describes the upgrade and migration options that are available from previous versions of BMC Discovery. BMC Discovery 23.3 is supported on Oracle Linux 9.
Back up before upgrading
The upgrade to BMC Discovery 23.3 is fully tested and supported, though is more significant than previous upgrades. The upgrade is complex, and involves a change of two major versions: from Red Hat Enterprise Linux 7 or CentOS 7 to Oracle Linux 9. During the upgrade, the BMC Discovery product is uninstalled and then reinstalled, if for any reason, the upgrade fails at that time, the BMC Discovery product cannot resolve any upgrade issues.
Before you upgrade, you should back up the appliance, or for clusters, each cluster member. Use the SSH or Windows Share backup method.
If you are using a virtual appliance, you should shutdown and take a snapshot of the virtual machine. For a cluster of virtual appliances, you should shutdown all the virtual machines at the same time and snapshot them at the same time. For example, if you are using VMware, use the vSphere Client to shutdown the virtual machines and take the snapshot.
Upgrade and migration overview
To summarize the upgrade paths and outcomes:
- You can upgrade to BMC Discovery 23.3 patch 1 running on Oracle Linux 9 from BMC Discovery running on CentOS 7 or Red Hat Enterprise Linux (RHEL) 7.
- You can also migrate to BMC Discovery 23.3 patch 1. Migration involves backing up the old appliance and restoring to a new appliance running on Oracle Linux 9.
This diagram show the upgrade paths available.
Before you upgrade, you should back up the appliance, or for clusters, each appliance. If you are using a virtual appliance, or a cluster of virtual appliances, you should shutdown the virtual appliance, take a snapshot, and restart.
Note
When upgrading to BMC Discovery 23.3, we strongly recommend that you upgrade using your existing architecture and test version 23.3 in a known configuration.
Supported upgrade versions
You can upgrade to BMC Discovery 23.3 patch 1 from the following versions of BMC Discovery:
| Version | Supported upgrade versions |
|---|---|
| 23.3 (13.0) | 23.3 (13.0) |
| 23.1 (12.8) | 23.1 (12.8), patch 1 |
| 22.2 (12.5) | 22.2 (12.5), patch 1, patch 2 |
| 22.1 (12.4) | 22.1 (12.4), patch 1 |
| 21.3 (12.3) | 21.3 (12.3), patch 1, patch 2, patch 3 |
| 21.05 (12.2) | 21.05 (12.2), patch 1, patch 2, patch 3, patch 4, patch 5 |
| 20.08 (12.1) | 20.08 (12.1), patch 1, patch 2, patch 3, patch 4 |
| 20.02 (12.0) | 20.02 (12.0), patch 1, patch 2, patch 3, patch 4, patch 5, patch 6 |
The formally tested and supported upgrade paths are listed above.
Change of supported OS for BMC Discovery Outpost
The minimum supported version of the OS for the BMC Discovery Outpost is Windows Server 2016. Before upgrading your BMC Discovery Outposts to BMC Discovery 23.3 (13.0), you must upgrade any BMC Discovery Outpost hosts to Windows Server 2016 and later.
This section contains the following topics:- Preparing for upgrade
- Performing the upgrade
- Upgrading and configuring Windows proxies
- Upgrading the BMC Discovery Outpost
- Configuring after upgrade
- Upgrade picture
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