Added note to PXF migration from GPDB 5
@@ -14,6 +14,7 @@ The PXF Greenplum Database 5 to 6 migration procedure has two parts. You perform
Before migrating PXF from Greenplum 5 to Greenplum 6, ensure that you can:
+- Identify your OS Version. Greenplum Database 6 does not support running PXF on CentOS 6.x or RHEL 6.x due to a limitation with the version of `cURL`. See [Known Issues and Limitations](https://gpdb.docs.pivotal.io/latest/relnotes/release-notes.html) for more details.
- Identify the version number of your Greenplum 5 installation. If it is older than 5.21.2, upgrade to a newer 5.x version.
- Identify the version of PXF running in the Greenplum 5 cluster.
- Identify the location of your PXF installation:
