Merge pull request #81686 from amolnar-rh/TELCODOCS-1861-additional-seedgen-validation

TELCODOCS-1861: Add additional seedgen validation checks/requirements

Author: opayne1

modules/cnf-image-based-upgrade-generate-seed-image.adoc

@@ -17,8 +17,12 @@ Use the {lcao} to generate the seed image with the `SeedGenerator` CR. The Opera
 
 .Prerequisites
 
-* Configure a shared container directory on the seed cluster.
-* Install the {oadp-short} Operator and the {lcao} on the seed cluster.
+* You have configured a shared container directory on the seed cluster.
+* You have installed the minimum version of the {oadp-short} Operator and the {lcao} on the seed cluster.
+* Ensure that persistent volumes are not configured on the seed cluster.
+* Ensure that the `LocalVolume` CR does not exist on the seed cluster if the Local Storage Operator is used.
+* Ensure that the `LVMCluster` CR does not exist on the seed cluster if {lvms} is used.
+* Ensure that the `DataProtectionApplication` CR does not exist on the seed cluster if {oadp-short} is used.
 
 .Procedure