Fail to boot after updating to 7.0.2

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AlexNJ - 29 Jun 2005 14:31 GMT

After I updated from 7.0.1 to 7.0.2 on 10.3.9 the following reboot
failed at the blue screeen (after the apple and rotating dashes).

Suspecting it was a kernal extension, I did a safe boot successfully
and removed the "virtualpcservices..." (or something like that)
extension. (BTW: this extension reads version 7.0.2)

Next boot went fine and VPC operates normally (printing, networking,
drag copying etc.).

Can anyone tell me what this extension is for? Can anyone provide a
list of properly installed files--names and locations?

Thanks
Alex

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Unseelie - 29 Jun 2005 19:34 GMT

There are two kernel extensions associated with Virtual PC:

VirtualPCNetworking.kext - this one may be followed by a series of
numbers
VirtualPCOSServices.kext - not needed, nor should it load under Tiger

I'm going to guess you removed the VirtualPCOSServices.kext file.

I'm not certain what that particular kext is for, but I'd gather it's
performance related for versions of the Mac OS prior to Tiger. It is
not needed, and should not load under Mac OS X Tiger. If you're running
Tiger, you can safely dispose of it.

If you're running Jaguar or Panther, I might recommend running the
installer again, and it should repair it and require a reboot.

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AlexNJ - 30 Jun 2005 03:16 GMT

Yes. Performance was degraded while running 7.0.2 without the
"services" kext. There must be a kext conflict with another non-VPC
kext.

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Unseelie - 29 Jun 2005 23:56 GMT

I swore I had answered this earlier today... Virtual PC installs two
kext files, depending on the Mac OS you are running Virtual PC under.

VirtualPCOSServices.kext
VirtualPCNetworking.kext - this one may have a 4 digit number in the
filename

The Virtual PC Networking kext is the kext required for Virtual Switch
networking. As far as I can determine, the OSServices kext is not used
in Mac OS X Tiger, but is used in Panther and Jaguar, and it clearly
improves performance, because removing it seriously slowed down my copy
of Virtual PC.

It does not, however, seem to be necessary for VPC to run. If your
performance of VPC degrades after removing this file, I'd personally
recommend that you consider a re-install of Virtual PC.

Also, Virtual PC installation issues (which this is) are not charged
for, if you call MS support.

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AlexNJ - 30 Jun 2005 02:27 GMT

Thank you. I am new to news groups and did not see your previous
message. I also did not know that MS will support install problems for
free.

You gave me an idea. I removed both kexts and ran the 7.02 insaller
again. Only the networking kext was installed--not the OSServices kext.
For what it is worth.

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Mac Forum / Applications / Virtual PC / June 2005

Fail to boot after updating to 7.0.2