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Date: Sun, 08 Jan 2012 17:48:34 +0100
From: Torfinn Ingolfsen <torfinn.ingolfsen@broadpark.no>
To: freebsd-ppc@freebsd.org
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Subject: Re: PowerBook G3 (Pismo/Firewire) Install CD Hangs
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On Sat, 07 Jan 2012 23:48:56 -0600
Mike Cochran <vongrippen@gmail.com> wrote:

> My thinking at first was possibly DMA trouble with the ATA controller,
> because I've noticed some people have had some issues on PowerMacs,
> but disabling DMA (set hw.ata.atapi_dma=0) didn't change anything.

Have you tried this in combination with boot -v?
On at least one PowerPC machine it was needed for me (but that machine was G5, it was before 9.0-release, YMMV).
HTH
-- 
Torfinn