Re: Windows PV 8.2.2 upgrading to 9.0.0

[Paul Durrant <xadimgnik@xxxxxxxxx>]

On 18/07/2021 05:51, Dominic Russell wrote:
[snip]
> Today I wanted to update all Windows 10 and 2016 Xen PV drivers to the latest 
> 9.0.0 and encountered two issues :
>         1. The VNC keyboard not being responsive is still happening!  The Xen 
> version is 4.8.5, which is dated 2019/12 and the drivers are 2019/6, so it 
> should work together I think.
The version of Xen is not the crucial part here; it's the version of 
QEMU that you're using. Still, that's a very old version of Xen and well 
out of security support.
>         2. The other issue is more critical, even if dpinst mentions that it 
> updated the driver, for many of them, it did not, I did not notice at first, 
> restarted the computer and... just a turning wheel at startup and it stays 
> there forever.  Is there an easy fix for that or the only way is to clear 
> registry with the help of Hiren's boot CD?
If you can get into the console quickly enough at boot time then you 
should be able to boot in 'safe mode' which should disable PV drivers 
and use emulated devices instead.
> What is the correct procedure to update Windows Xen PV drivers?
That's a very tricky question because it largely depends on what is 
there currently. You *should* be able to simply install 9.0 drivers over 
the top of 8.x drivers but, if that is not working, then it is probably 
best to actively remove any previous drivers, then reboot and bring up 
the system using emulated devices before then installing newer drivers.
  Cheers,

    Paul