Merge pull request #77640 from sbeskin-redhat/CNV-37570_Use_pipelines_to_manage_bootable_volumes

Author: sheriff-rh

modules/virt-creating-vm-instancetype.adoc

@@ -39,9 +39,11 @@ endif::[]
 
 .Procedure
 
-. In the web console, navigate to *Virtualization* -> *Catalog* and click the *InstanceTypes* tab.
+. In the web console, navigate to *Virtualization* -> *Catalog*.
++
+The *InstanceTypes* tab opens by default.
 . Select either of the following options:
-* Select a bootable volume.
+* Select a suitable bootable volume from the list. If the list is truncated, click the *Show all* button to display the entire list.
 +
 [NOTE]
 ====
@@ -50,8 +52,13 @@ The bootable volume table lists only those volumes in the `openshift-virtualizat
 +
 ** Optional: Click the star icon to designate a bootable volume as a favorite. Starred bootable volumes appear first in the volume list.
 
-* Click *Add volume* to upload a new volume or use an existing persistent volume claim (PVC), volume snapshot, or data source. Then click *Save*.
-
+* Click *Add volume* to upload a new volume or to use an existing persistent volume claim (PVC), a volume snapshot, or a `containerDisk` volume. Click *Save*.
++
+Logos of operating systems that are not available in the cluster are shown at the bottom of the list. You can add a volume for the required operating system by clicking the *Add volume* link.
++
+In addition, there is a link to the *Create a Windows boot source* quick start. The same link appears in a popover if you hover the pointer over the question mark icon next to the _Select volume to boot from_ line.
++
+Immediately after you install the environment or when the environment is disconnected, the list of volumes to boot from is empty. In that case, three operating system logos are displayed: Windows, {op-system-base}, and Linux. You can add a new volume that meets you requirements by clicking the *Add volume* button.
 
 ifdef::virt-create-vms[]
 . Click an instance type tile and select the resource size appropriate for your workload.