Version: 2.7

Upgrade Portworx Central and its components

Upgrades with License server and px-monitor

If you have only license server or px-monitor component and try to upgrade to Portworx Central version to 2.7.4 or 2.8.0 from older versions, pre-upgrade-check fails with the following error:

In such scenarios, perform the following steps to resolve the issue and proceed further:

Delete the pre-upgrade-check job and pre-upgrade-data-pvc in the installed namespace (namespace where you have installed PX-central) and retry the upgrade by adding the following additional parameter to the helm upgrade command. --no-hooks

Sample command format:
```
helm upgrade px-central portworx/px-central --namespace central --version <pxc-version> --no-hooks -f values-px-upgrade.yaml
```
Ensure that you replace <pxc-version> with your Portworx Central version, which is 2.7.4 here.