Upgrading the Upgrader

Before you patch the appliance, make sure you are running the latest version of pca_upgrader.

When a new version of pca_upgrader is available, it only needs to be installed on the active management node. Once the new pca_upgrader is installed on the active management node, running the upgrade on the other management node installs it there.

Manually Updating pca_upgrader on the Active Management Node

Configure the appliance for direct access or set up a mirror server.

See Configuring Private Cloud Appliance Direct Access or Configuring a Mirror Server.
Check for a newer pca_upgrader.

When pca_upgrader is updated, a new version of the pca_upgrader package is delivered to the ULN management node repository during the repository creation or update.

Check the following directory to see whether the version of pca_upgrader that is in the repository is newer than the version that is installed on the system. Replace x with the release version of the appliance.
```
# cd /nfs/shared_storage/pca_upgrader/pca_patch_2.4.4.x/mn/getPackage
```
List the directory and search for pca_upgrader:
```
# ls | grep pca_upgrader
```
Get the version of the installed pca_upgrader:
```
# rpm -q | grep pca_upgrader
```
If the version in the repository is newer, proceed to the next step in this procedure. If the installed version is newer, no update is necessary and you can continue to Patching Management and Compute Nodes.
Update to the newer version of the pca_upgrader package.

If the version of pca_upgrader in the repository is newer than the version that is installed on the system, manually upgrade to the newer version:
```
# rpm -Uvh pca_upgrader-2.4.4.x-xx.el7.noarch.rpm
```

When the latest version of pca_upgrader is installed on the active management node, proceed with normal patching protocol on the first management node. See Patching Management and Compute Nodes. The new version of pca_upgrader will be installed automatically on the management node that is being patched.

For future upgrades, the new version of the upgrader will notify you if an update exists. Follow the steps to manually update if required.