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Re: [Libguestfs] Attempts to install a Windows driver from WinPE

On 04/12/09 13:38, Matthew Booth wrote:
An update on this as promised: I have now made it work with Windows 2008
R2! The short version:

1. Create a Windows PE image containing VirtIO drivers

* Install WAIK for Windows 7 on your build system
* Create a stock amd64 Windows PE image
* Use DISM to mount the image
* Use DISM to install the amd64 viostor driver for Win2008 in the image
* Use DISM to unmount the image
* Copy the image to sources\boot.wim in the ISO tree
* Copy the complete contents of the virtio driver floppy into ISO tree
* Create a bootable ISO image from the ISO tree

2. Use Windows PE image to install driver in guest

* Ensure guest is configured to use VirtIO for storage
* Add Windows PE image as boot image for guest
* Boot guest with Windows PE image
Guest system drive is D:
Mounted ISO image is E:
* Run: dism /image:d:\ /add-driver
* exit
* Configure guest to boot from HD

The guest will now boot normally using VirtIO.

The biggest gotcha in the above is that if you google 'WAIK' it will
send you to a download page for Windows Automated Installation Kit.
Unless you're extremely eagle-eyed (I wasn't) you won't notice that this
was released in 2007, and it doesn't support Windows 2008 R2. However,
if you search for WAIK in the search box (not the Bing one, the useful
one below that), you'll find it.

DISM is new in the latest WAIK. Compared to pkgmgr it's a doddle to
install a driver as you don't need an obtuse unattend.xml.

I'm about to test the same image against 32bit Windows 2003. I'll report
back on how that goes.

It looks like DISM only works on Vista and Windows Server 2008+. Unfortunately it doesn't work on Windows 2003.

However, just on the way out the door I've come across the [SysprepMassStorage] configuration directive in Sysprep.inf, which looks interesting. That's one for Monday morning.

Matthew Booth, RHCA, RHCSS
Red Hat Engineering, Virtualisation Team

M:       +44 (0)7977 267231
GPG ID:  D33C3490
GPG FPR: 3733 612D 2D05 5458 8A8A 1600 3441 EA19 D33C 3490

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