Re: [win-pv-devel] Signed 8.1.0 drivers

["Brandon Shoemaker" <brandon@xxxxxxxxxxxxx>]

Hey Paul and list,

That fixed it!  Okay so I will remember that one update is needed for any new 
clean Windows 2008 R2 install not yet updated.

Still I am not sure about the reason why the EJB digital driver uninstall and 
update to these drivers resulted in Windows 2008 R2 hanging forever on reboot.  
I tested this twice with the same results.  I'd expect you may see some others 
complain of seeing this problem in the future.  Maybe someone with more time 
and capability than me can later confirm a working procedure for upgrading from 
those drivers to these new drivers that can result in success.

My procedure was:

1. Uninstall the EJB digital drivers from the Windows control panel
2. Don't reboot yet
3. Install all the new drivers
4. reboot
5. I found if you reboot first before installing the new drivers you end up 
with a blue screen

My procedure must be incomplete or have flaws.

Thanks again for your support on this list.


> -----Original Message-----
> From: Paul Durrant
> Sent: 26 July 2016 18:24
> To: 'Brandon Shoemaker'; win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> Subject: RE: [win-pv-devel] Signed 8.1.0 drivers
> 
> > -----Original Message-----
> > From: win-pv-devel 
> > [mailto:win-pv-devel-bounces@xxxxxxxxxxxxxxxxxxxx]
> On
> > Behalf Of Brandon Shoemaker
> > Sent: 26 July 2016 18:08
> > To: win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> > Subject: [win-pv-devel] Signed 8.1.0 drivers
> >
> > Hello,
> >
> > I have been waiting on these new signed drivers.  Thanks for finally 
> > making them available!
> >
> > I have tested and run into a problems unfortunately so I wanted to 
> > report this.
> >
> > First I tried uninstalling the EJB digital drivers
> > (ejbpv_Vista2008x64_1.0.1105.msi) and installing these new drivers 
> > on Windows 2008 R2 x64 existing VPS.  After rebooting Windows 2008 
> > R2
> hangs
> > forever at boot.
> >
> > Secondly I have installed a clean Windows 2008 R2 and then installed 
> > all the drivers and when I reboot it goes into recovery mode.  I 
> > happen to check Windows device manager before I rebooted and I 
> > noticed that the "Xen PV Bus" driver has a yellow warning symbol as shown 
> > in the screenshot >
> > https://postimg.org/image/x08g7n4wn/   it says it cannot verify the digital
> > signature for the Xen PV Bus drivers.  Nothing was done but the 
> > install of Windows and then immediate install of the drivers.
> 
> I suspect this is because the drivers are signed with SHA-256 and you 
> may need a hotfix to enable verification of kernel mode drivers signed 
> with a
> SHA-256 cert.

Specifically see 
https://technet.microsoft.com/en-us/library/security/3033929?f=255&MSPPError=-2147217396

> 
>   Paul
> 



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