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Date:      Fri, 18 Sep 2009 05:55:22 -0400
From:      John Baldwin <jhb@FreeBSD.org>
To:        Torfinn Ingolfsen <torfinn.ingolfsen@broadpark.no>
Cc:        freebsd-amd64@freebsd.org
Subject:   Re: amd64/138882: Can't install FreeBSD 7.2
Message-ID:  <4AB3590A.5040805@FreeBSD.org>
In-Reply-To: <20090918102700.7ba596a6.torfinn.ingolfsen@broadpark.no>
References:  <200909171300.n8HD0GbZ059265@freefall.freebsd.org> <20090918102700.7ba596a6.torfinn.ingolfsen@broadpark.no>

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Torfinn Ingolfsen wrote:
> On Thu, 17 Sep 2009 13:00:16 +0000 (GMT)
> John Baldwin <jhb@FreeBSD.org> wrote:
> 
>>  Try turning off legacy USB support in your BIOS.  I have a machine
>> at home that has run 6.x and 7.x/i386 that has this same issue.  The 
>>  problem appears to be that ohci_reset() doesn't fully clear the
>> state of the ohci(4) controller and when the driver first probes it
>> sees a completed USB request that was the last request initiated by
>> the BIOS. 
> 
> Or if that doesn't work (I have a M2A-VM HDMI, but I don't know how old
> a BIOS he has) he can remove all usb attached devices during boot.
> For some reason, most devices work fine when plugged in after the
> machine has booted.
> (Some devices will panic the machine, but that is another story)

Yes, that is true in my experience as well.  In my case I have a UPS 
with a USB adapter plugged in and removing it during boot was another 
workaround.

-- 
John Baldwin



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