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Old 06-24-2008, 09:32 PM
raraks@gmail.com
 
Posts: n/a
Re: Usb Composite device + boot
On Jun 24, 9:01*am, rar...@gmail.com wrote:
> On Jun 24, 4:23*am, "Massimiliano Castelletto"
>
>
>
>
>
> <massimiliano.castelle...@gmail.com> wrote:
> > I had the same problem and I solverd installing the update rollup1 of the
> > FP2007

>
> > Max

>
> > <rar...@gmail.com> ha scritto nel messaggionews:db65b514-835c-4871-b4eb-96fc6a7acd5e@g16g2000pri.googlegroups.com...

>
> > >I am trying tobooteXP off of ausbmass storage device which is one
> > > part of ausbcomposite device. I can run ufdprep etc, successfully,
> > > have built an image with theusb2.0bootcomponent. When theboot
> > > process starts it BSOD with the Stop 7B error. *Same image works
> > > successfully with ausbflash drive that is not a composite device.
> > > This makes me think that booting off of a compositeusbdevice is not
> > > supported

>
> > > Can someone confirm whether or not the above scenario is supported. I
> > > am using an Eval version with the 2007 Feature pack.

>
> > > Are there any registry tweaks that I can apply to work around this
> > > issue ?

>
> > > Any help would be appreciated

>
> > > Thanks- Hide quoted text -

>
> > - Show quoted text -

>
> I finally got it to work by fiddling around with the registry settings
> - but if the Update Rollup resolves it then I'd much rather use that
> solution.
>
> I'll give it a try and thank you for responding
>
> --ks- Hide quoted text -
>
> - Show quoted text -



The Update Rollup didnt really do it for me.. :-(

After experimenting with the various registry entries in the
CriticalDeviceDatabase and driver Start values, it appears that I MUST
set the usbccgp Start value to 0 (i.e., Boot start). Are there any
side effects of doing so .. ? I am wondering if the usbccgp.sys
depends on the existence of any other driver components ... Does
anyone know ?

It appears that I also need the same changes in the system hive after
the FBA runs..otherwise I get the Stop 7B error again. How do I make
changes such that it can be used for the first boot and then persists
after the fba has also run ?

Thanks
--ks




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