Troubleshoot virtual machine image uploads in Azure Stack Edge Pro GPU

APPLIES TO: Azure Stack Edge Pro - GPUAzure Stack Edge Pro 2Azure Stack Edge Pro RAzure Stack Edge Mini R                  

This article describes how to troubleshoot issues that occur when downloading and managing virtual machine (VM) images on an Azure Stack Edge Pro GPU device.

Unable to add VM image to blob container

Error Description: In the Azure portal, when trying to upload a VM image to a blob container, the Add button isn't available, and the image can't be uploaded. The Add button isn't available when you don't have the required contributor role permissions to the resource group or subscription for the device.

Suggested solution: Make sure you have the required contributor permissions to add files to the resource group or storage account. For more information, see Prerequisites for the Azure Stack Edge resource.

Invalid blob type for the source blob URI

Error Description: A VHD stored as a block blob cannot be downloaded. To be downloaded, a VHD must be stored as a page blob.

Suggested solution: Upload the VHD to the Azure Storage account as a page blob. Then download the blob. For upload instructions, see Use Storage Explorer for upload.

Only blobs formatted as VHDs can be imported

Error Description: The VHD can't be imported because it doesn't meet formatting requirements. To be imported, a virtual hard disk must be a fixed-size, Generation 1 VHD.

Suggested solutions:

• Follow the steps in Prepare generalized image from Windows VHD to deploy VMs on Azure Stack Edge Pro GPU to create a fixed-size VHD for a Generation 1 virtual machine from your source VHD or VHDX.

• If you prefer to use PowerShell:

  • You can use Convert-VHD in the Windows PowerShell module for Hyper-V. You can't use Convert-VHD to convert a VM image from a Generation 2 VM to Generation 1; instead, use the portal procedures in Prepare generalized image from Windows VHD to deploy VMs on Azure Stack Edge Pro GPU.

  • If you need to find out the current VHD type, use Get-VHD.

The condition specified using HTTP conditional header(s) is not met

Error Description: If any changes are being made to a VHD when you try to download it from Azure, the download will fail because the VHD in Azure won't match the VHD being downloaded. This error also occurs when a download is attempted before the upload of the VHD to Azure has completed.

Suggested solution: Wait until the upload of the VHD has completed and no changes are being made to the VHD. Then try downloading the VHD again.

Next steps

• Learn how to Deploy VMs via the Azure portal.
• Learn how to Deploy VMs via Azure PowerShell.