I'm having some trouble getting a WDS server to deploy an image to a UEFI enabled machine. I have been playing with the unattend file off and on for a few days now but just can't seem to figure out what the issue is. Below is an example of what settings are in my unattend file.
I connect to the server fine and it brings up my list of images that are available on the server and after I select one I'm asking to select a partition install the image onto even if the hard drive has no partitions. No matter what I select at the partition select screen I'm getting a "Windows could not prepare the partition selected for installation" error message. I'm just not sure why the disk configuration section is not getting applied.
<?xml version="1.0" encoding="utf-8"?>
<unattend xmlns="urn:schemas-microsoft-com:unattend">
<settings pass="windowsPE">
<component name="Microsoft-Windows-Setup" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<DiskConfiguration>
<WillShowUI>OnError</WillShowUI>
<Disk wcm:action="add">
<DiskID>0</DiskID>
<WillWipeDisk>true</WillWipeDisk>
<CreatePartitions>
<CreatePartition wcm:action="add">
<Order>1</Order>
<Size>200</Size>
<Type>EFI</Type>
</CreatePartition>
<CreatePartition wcm:action="add">
<Order>2</Order>
<Size>128</Size>
<Type>MSR</Type>
</CreatePartition>
<CreatePartition wcm:action="add">
<Order>3</Order>
<Extend>true</Extend>
<Type>Primary</Type>
</CreatePartition>
</CreatePartitions>
<ModifyPartitions>
<ModifyPartition wcm:action="add">
<Order>1</Order>
<Label>System</Label>
<Format>FAT32</Format>
<PartitionID>1</PartitionID>
</ModifyPartition>
<ModifyPartition wcm:action="add">
<Order>2</Order>
<PartitionID>3</PartitionID>
<Label>Local Disk</Label>
<Letter>C</Letter>
<Format>NTFS</Format>
</ModifyPartition>
</ModifyPartitions>
</Disk>
</DiskConfiguration>
<ImageInstall>
<OSImage>
<InstallTo>
<DiskID>0</DiskID>
<PartitionID>3</PartitionID>
</InstallTo>
<WillShowUI>OnError</WillShowUI>
</OSImage>
</ImageInstall>
</component>
</settings>
</unattend>