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From: Michael Tuexen <tuexen@freebsd.org>
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Subject: Problems booting head on G4 Powerbook
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Date: Tue, 28 Aug 2018 21:15:39 +0200
To: FreeBSD PowerPC ML <freebsd-ppc@freebsd.org>
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Dear all,

I did a self host build and install world of an svn revision a couple of =
days old.
Now the system does not boot anymore. It reports:
>> FreeBSD/powerpc Open Firmware boot block
   Boot path:    /pci@f4000000/ata-6@d/disk@0:
   Boot loader:  /boot/loader
   Boot volume:    /pci@f4000000/ata-6@d/disk@0:3
Consoles: Open Firmware console

FreeBSD/powerpc Open Firmware loader, Revision 0.1
(Tue Aug 28 02:08:04 CEST 2018 tuexen@pb15)
Memory: 1048576KB
Booted from: /pci@f4000000/ata-6@d/disk@0

-
Invalid memory access at     %SRR0:   00000000     %SRR1: 00083030

Apple PowerBook5,2 ....

Any idea what is wrong and how to fix it?

Best regards
Michael=