Re: [win-pv-devel] [Xen-users] windows pv drivers 8.1 series INACCESSIBLE_BOOT_DEVICE windows 10

[Paul Durrant <Paul.Durrant@xxxxxxxxxx>]

> -----Original Message-----
> From: Fabio Fantoni [mailto:fabio.fantoni@xxxxxxx]
> Sent: 02 March 2016 16:17
> To: Paul Durrant; Éliás Tamás; win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> Subject: Re: [win-pv-devel] [Xen-users] windows pv drivers 8.1 series
> INACCESSIBLE_BOOT_DEVICE windows 10
> 
> Il 02/03/2016 11:50, Paul Durrant ha scritto:
> >> -----Original Message-----
> >> From: win-pv-devel [mailto:win-pv-devel-bounces@xxxxxxxxxxxxxxxxxxxx]
> On
> >> Behalf Of Éliás Tamás
> >> Sent: 01 March 2016 22:52
> >> To: win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> >> Subject: Re: [win-pv-devel] [Xen-users] windows pv drivers 8.1 series
> >> INACCESSIBLE_BOOT_DEVICE windows 10
> >>
> >> Dear Paul.
> >>
> >> In safe mode I used "dpinst.exe /D /U inf-file" for each and every
> >> driver package (8.2).
> >>
> >> the removal process went find. I rebooted, first back into safe mode,
> >> and checked what I find.  I found that all the driver files are still
> >> there (screenshot attached) (/D?).
> >>
> >> After this, in safe mode I installed the 8.1 drivers with
> >>
> >> "dpinst.exe /F"
> >>
> >> and after reboot, I got a BSOD again (attached).
> >>
> > I don't think driver installation in safe mode is a good idea. You should 
> > use
> safe mode to remove drivers and get a normal boot back to a working state.
> Can you just try removal using safe mode and then installation after a reboot
> into normal mode?
> >
> >    Paul
> 
> Thanks for fix/improve the drivers.
> Today I did some tests hoping that your recent changes solved the
> remained BSOD cases about driver remove, update (after old remove and
> reboot) and different version install but don't seems :(

Well I can't fix whatever drivers you had installed before. Do you still see 
problems if you remove new drivers from a freshly installed VM?

> Now on latest test with a clean W7 domU I saw also another particular
> problem.
> Installing only xenbus (click on reboot now before install other
> components for mistake) and rebooting windows hangs on boot without
> errors (qemu log in attachment)
> Setting xen_platform_pci=0 booted again correctly (without xenbus).

Nothing apparently wrong in your log so I don’t know what the hang was. I just 
did the same thing myself without any issues so I can only assume that the 
problem is down to something else in your VM, or possibly your QEMU config.

> 
> After removing the drivers from control (in previous tests with domU
> working) I retried to remove remained drivers things manually with a bat
> I did time ago without success (always BSOD):
> > @ECHO OFF
> > REM Clean from new pv drivers things not removible from control panel
> >
> > REM Stop and remove xen services
> > net stop xenlite
> > sc delete xenlite
> > DEL /q "%SystemRoot%\system32\liteagent.exe"
> >
> > sc delete xeniface
> > DEL /q "%SystemRoot%\system32\drivers\xeniface.sys"
> >
> > sc delete xendisk
> > DEL /q "%SystemRoot%\system32\drivers\xendisk.sys"
> >
> > sc delete xennet
> > DEL /q "%SystemRoot%\system32\drivers\xennet.sys"
> >
> > sc delete xenvbd
> > DEL /q "%SystemRoot%\system32\drivers\xenvbd.sys"
> >
> > sc delete XENVIF
> > DEL /q "%SystemRoot%\system32\drivers\xenvif.sys"
> >
> > sc delete XENFILT
> > DEL /q "%SystemRoot%\system32\drivers\xenfilt.sys"
> >
> > sc delete XENBUS
> > DEL /q "%SystemRoot%\system32\drivers\xenbus.sys"
> > DEL /q "%SystemRoot%\system32\drivers\xen.sys"
> > DEL /q "%SystemRoot%\system32\drivers\xencrsh.sys"
> >
> >
> > ECHO Finish
> "pnputil -e" before execute the bat already show no xen drivers even if
> still presents.
> Can someone help me to found all other registry keys and files to remove
> (to add on bat) please?
> 

Your bat is playing a dangerous game ripping out things in that fashion I 
suspect. It's almost certain that co-installers are not going to run so unless 
your PV drivers have been rendered inactive already (by manual intervention) 
you are probably going to end up with an unbootable VM. You should probably be 
using devcon 
(https://msdn.microsoft.com/en-us/library/windows/hardware/ff544707%28v=vs.85%29.aspx)
 instead if you want to automate install/uninstall.

  Paul

> 
> >
> >
> >> 2016-03-01 17:52 keltezéssel, Paul Durrant írta:
> >>>> -----Original Message-----
> >>>> From: win-pv-devel [mailto:win-pv-devel-
> bounces@xxxxxxxxxxxxxxxxxxxx]
> >> On
> >>>> Behalf Of Éliás Tamás
> >>>> Sent: 01 March 2016 15:23
> >>>> To: win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> >>>> Subject: Re: [win-pv-devel] [Xen-users] windows pv drivers 8.1 series
> >>>> INACCESSIBLE_BOOT_DEVICE windows 10
> >>>>
> >>>> Hi.
> >>>>
> >>>> Are the files in http://xenbits.xen.org/pvdrivers/win/8.1.0/
> >>>> automatically generated? If yes, when the autogeneration runs? If not,
> >>>> may I ask you to provide a compiled version? (I have no windows
> >>>> environment to compile with at all). Thank you.
> >>>>
> >>> The binaries directly under http://xenbits.xen.org/pvdrivers/win are
> built
> >> from the master branches of the respective repos. The binaries under
> >> http://xenbits.xen.org/pvdrivers/win/8.1.0 are built from specific tags
> made
> >> on the staging-8.1 branches of each of the repos and are only re-built
> when I
> >> manually kick the workers after I decided to re-tag.
> >>>    Paul
> >>>
> >>>> 2016-03-01 13:20 keltezéssel, Paul Durrant írta:
> >>>>>> -----Original Message-----
> >>>>>> From: win-pv-devel [mailto:win-pv-devel-
> >> bounces@xxxxxxxxxxxxxxxxxxxx]
> >>>> On
> >>>>>> Behalf Of Paul Durrant
> >>>>>> Sent: 01 March 2016 10:09
> >>>>>> To: Éliás Tamás; win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> >>>>>> Subject: Re: [win-pv-devel] [Xen-users] windows pv drivers 8.1
> series
> >>>>>> INACCESSIBLE_BOOT_DEVICE windows 10
> >>>>>>
> >>>>>>> -----Original Message-----
> >>>>>>> From: Éliás Tamás [mailto:et@xxxxxxx]
> >>>>>>> Sent: 01 March 2016 10:07
> >>>>>>> To: Paul Durrant; win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> >>>>>>> Subject: Re: [win-pv-devel] [Xen-users] windows pv drivers 8.1
> series
> >>>>>>> INACCESSIBLE_BOOT_DEVICE windows 10
> >>>>>>>
> >>>>>>> Hi.
> >>>>>>>
> >>>>>>>>> Do we have a chance to fix this? Some bat files which deletes the
> >>>>>>>>> leftovers? (Since I'm having a BSOD upon normal boot I have no
> >> other
> >>>>>>>>> chance then safe mode currently)
> >>>>>>>>>
> >>>>>>>> Given that the xenbus co-installer still runs I'll add some code in
> >> there
> >>>> to
> >>>>>>> make sure that no unplug is performed on the next reboot.
> >>>>>>> That sounds well. When will be possible to try the new installer?
> >>>>>>>
> >>>>>> I should have a patch today.
> >>>>>>
> >>>>>>> Thank you.
> >>>>>>>
> >>>>>> Thanks for bringing the precise nature of the problem to my
> attention.
> >>>>>>
> >>>>> Having kicked myself for being so stupid, I now realise why the co-
> >> installers
> >>>> are not working as I expect... The InitSafeBootMode override in
> XENBUS
> >> is
> >>>> preventing FDO creation, hence there will be no child PDOs, hence no
> >> other
> >>>> driver's co-installer is ever going to run.
> >>>>> So, my plan is to simply prevent emulated device unplug in safe mode
> >> and
> >>>> remove the override from other drivers. The lack of unplug should
> cause
> >> PV
> >>>> devices to become inactive anyway, which achieves the desired effect.
> >>>>>    Paul
> >>>>> _______________________________________________
> >>>>> win-pv-devel mailing list
> >>>>> win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> >>>>> http://lists.xenproject.org/cgi-bin/mailman/listinfo/win-pv-devel
> >>>>>
> >>>> --
> >>>>
> >>>>
> >>>> Éliás Tamás
> >>>> Thomas Elias
> >>>>
> >>>> ETIT[nwpro] KFT, Ügyvezető-Hálózatbiztonsági specialista
> >>>> ETIT[nwpro] Ltd, General Manager-Network security specialist
> >>>>
> >>>> Tel. HU: +36/30-497-1626
> >>>> Tel. DE: +49/160-651-8723
> >>>> OpenPGP pubkey: http://etit.hu/doc/et-pub.asc
> >>>>
> >>>> Okleveles mérnök-informatikus (MSC)
> >>>> Master of Science in Information Technology (MSC)
> >>>>
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> >>> _______________________________________________
> >>> win-pv-devel mailing list
> >>> win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> >>> http://lists.xenproject.org/cgi-bin/mailman/listinfo/win-pv-devel
> >>>
> >> --
> >>
> >>
> >> Éliás Tamás
> >> Thomas Elias
> >>
> >> ETIT[nwpro] KFT, Ügyvezető-Hálózatbiztonsági specialista
> >> ETIT[nwpro] Ltd, General Manager-Network security specialist
> >>
> >> Tel. HU: +36/30-497-1626
> >> Tel. DE: +49/160-651-8723
> >> OpenPGP pubkey: http://etit.hu/doc/et-pub.asc
> >>
> >> Okleveles mérnök-informatikus (MSC)
> >> Master of Science in Information Technology (MSC)
> >>
> >> Kapcsolat: http://etit.hu/index.php/hu/kapcsolat
> >> Jogi nyilatkozat: http://etit.hu/disclaimer-email-hu.txt
> >> Contact: http://etit.hu/index.php/en/contact
> >> Disclaimer: http://etit.hu/disclaimer-email-en.txt
> > _______________________________________________
> > win-pv-devel mailing list
> > win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> > http://lists.xenproject.org/cgi-bin/mailman/listinfo/win-pv-devel

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