Merge pull request #105406 from spelluru/labsig0224

added note about generalized images

Author: PRMerger9

articles/lab-services/classroom-labs/how-to-attach-detach-shared-image-gallery.md

@@ -12,17 +12,19 @@ ms.workload: na
 ms.tgt_pltfrm: na
 ms.devlang: na
 ms.topic: article
-ms.date: 02/14/2020
+ms.date: 02/24/2020
 ms.author: spelluru
 
 ---
 # Attach or detach a shared image gallery in Azure Lab Services
 Teachers/lab admin can save a template VM image in an Azure [shared image gallery](../../virtual-machines/windows/shared-image-galleries.md) for it to be reused by others. As a first step, the lab admin attaches an existing shared image gallery to the lab account. Once the shared image gallery is attached, labs created in the lab account can save images to the shared image gallery. Other teachers can select this image from the shared image gallery to create a template for their classes. 
 
+When an image is saved to a shared image gallery, Azure Lab Services replicates the saved image to other regions available in the same [geography](https://azure.microsoft.com/global-infrastructure/geographies/). It ensures that the image is available for labs created in other regions in the same geography. Saving images to a shared image gallery incurs an additional cost, which includes cost for all replicated images. This cost is separate from the Azure Lab Services usage cost. For more information about Shared Image Gallery pricing, see [Shared Image Gallery – Billing]( https://docs.microsoft.com/azure/virtual-machines/windows/shared-image-galleries#billing).
+
 This article shows you how to attach or detach a shared image gallery to a lab account. 
 
 > [!NOTE]
-> When an image is saved to a shared image gallery, Azure Lab Services replicates the saved image to other regions available in the same [geography](https://azure.microsoft.com/global-infrastructure/geographies/). It ensures that the image is available for labs created in other regions in the same geography. Saving images to a shared image gallery incurs an additional cost, which includes cost for all replicated images. This cost is separate from the Azure Lab Services usage cost. For more information about Shared Image Gallery pricing, see [Shared Image Gallery – Billing]( https://docs.microsoft.com/azure/virtual-machines/windows/shared-image-galleries#billing).
+> Currently, Azure Lab Services supports creation of VMs based on only **generalized** VM images (not specialized images) in a shared image gallery. 
 
 
 ## Configure at the time of lab account creation

articles/lab-services/classroom-labs/how-to-use-shared-image-gallery.md

@@ -12,13 +12,16 @@ ms.workload: na
 ms.tgt_pltfrm: na
 ms.devlang: na
 ms.topic: article
-ms.date: 10/31/2019
+ms.date: 02/24/2020
 ms.author: spelluru
 
 ---
 # Use a shared image gallery in Azure Lab Services
 This article shows how teachers/lab admin can save a template virtual machine image for it to be reused by others. These images are saved in an Azure [shared image gallery](../../virtual-machines/windows/shared-image-galleries.md). As a first step, the lab admin attaches an existing shared image gallery to the lab account. Once the shared image gallery is attached, labs created in the lab account can save images to the shared image gallery. Other teachers can select this image from the shared image gallery to create a template for their classes. 
 
+> [!NOTE]
+> Currently, Azure Lab Services supports creation of VMs based on only **generalized** VM images (not specialized images) in a shared image gallery. 
+
 ## Prerequisites
 - Create a shared image gallery by using either [Azure PowerShell](../../virtual-machines/windows/shared-images.md) or [Azure CLI](../../virtual-machines/linux/shared-images.md).
 - You have attached the shared image gallery to the lab account. For step-by-step instructions, see [How to attach or detach shared image gallery](how-to-attach-detach-shared-image-gallery.md).