[Compute] Fix deploying Linux SIG image/Linux Community Gallery Image (#20565)

* image ref fix

* changelog

Co-authored-by: Dingmeng Xue <[email protected]>

Author: haagha

src/Compute/Compute/ChangeLog.md

@@ -21,6 +21,7 @@
 -->
 ## Upcoming Release
 * Removed the image `Win2008R2SP1` from the list of available images and documentation. This image is no longer available on the backend so the client tools need to sync to that change.
+* Fixed a bug for creating Linux VM's from SIG/Community Gallery Images
 
 ## Version 5.2.0
 * Fixed issue found for `Set-AzVmssVMRunCommand` [#19985]

src/Compute/Compute/Strategies/ComputeRp/VirtualMachineStrategy.cs

@@ -84,8 +84,8 @@ public static ResourceConfig<VirtualMachine> CreateVirtualMachineConfig(
                         OsProfile = new OSProfile
                         {
                             ComputerName = name,
-                            WindowsConfiguration = (imageAndOsType?.OsType != OperatingSystemTypes.Windows) ? null : imageAndOsType.CreateWindowsConfiguration(),
-                            LinuxConfiguration = (imageAndOsType?.OsType != OperatingSystemTypes.Linux) ? null : new LinuxConfiguration
+                            WindowsConfiguration = (imageAndOsType?.OsType != OperatingSystemTypes.Windows || imageReferenceId != null) ? null : imageAndOsType.CreateWindowsConfiguration(),
+                            LinuxConfiguration = (imageAndOsType?.OsType != OperatingSystemTypes.Linux || imageReferenceId != null ) ? null : new LinuxConfiguration
                             {
                                 Ssh = new SshConfiguration(sshPublicKeys)
                             },