On Jun 5, 2009, at 9:25 PM, Justin The Cynical wrote:
>> Am I missing something? Is "_"_"_lba-48"_property to be typed with
>> all the quotes?
>
> That's how I read it...
>
> nvedit
> dev_hd
> dev_..
> " " " lba-48" property
> device-end
>
> Will this work on a Yikes? That I don't know. Try it and let us
> know. :)
The patch works on systems which have a KeyLargo chip.
It may work on others.
The known-to-work patches are:
ATA4 (DA and early QS HD channel)
#! /bin/bash -
if kextstat -lb com.apple.driver.KeyLargoATA | grep -F -q KeyLargoATA &&
! ioreg -rStp IODeviceTree -n ata-4 -w0 | grep -F -q lba-48
then read -rd $'\000' nvram nvramrc <<< "`nvram nvramrc 2>&-`"
if sudo nvram 'use-nvramrc?=true' \
nvramrc='dev mac-io/ata-4 0 0 " lba-48" property device-end'" $nvramrc"
then echo '48-bit LBA support will be enabled on the next reboot.'; fi
fi
ATA3 (DA and early QS optical channel, and some other HD channels)
#! /bin/bash -
if kextstat -lb com.apple.driver.KeyLargoATA | grep -F -q KeyLargoATA &&
! ioreg -rStp IODeviceTree -n ata-3 -w0 | grep -F -q lba-48
then read -rd $'\000' nvram nvramrc <<< "`nvram nvramrc 2>&-`"
if sudo nvram 'use-nvramrc?=true' \
nvramrc='dev mac-io/ata-3 0 0 " lba-48" property device-end'" $nvramrc"
then echo '48-bit LBA support will be enabled on the next reboot.'; fi
fi
ATA2 (some other HD channels and some other optical channels)
#! /bin/bash -
if kextstat -lb com.apple.driver.KeyLargoATA | grep -F -q KeyLargoATA &&
! ioreg -rStp IODeviceTree -n ata-2 -w0 | grep -F -q lba-48
then read -rd $'\000' nvram nvramrc <<< "`nvram nvramrc 2>&-`"
if sudo nvram 'use-nvramrc?=true' \
nvramrc='dev mac-io/ata-2 0 0 " lba-48" property device-end'" $nvramrc"
then echo '48-bit LBA support will be enabled on the next reboot.'; fi
fi
The point being:
Each channel is different, and has to be handled with its own patch,
and it is possible to selectively enable LBA48 for either the HD
channel or the optical channel, or both, at your option.
The patch "lives" in the non-volatile RAM of the machine, and it
works across a power sequence or a boot sequence or a reset sequence.
It DOES NOT work across a "reset-nvram" sequence, however.
I've had the ATA4 and ATA3 patches persistent in my DA for nearly two
years now.
Of course, I have avoided using "reset-nvram".
This is the best approach to large drive support for 10.5, as the
"High Cap" product (or some versions of it) will not work on 10.5.
My DA is happily supporting 10.5.7 using the patch, as "High Cap" is
not working.
And, as I have the patch on the machine, I have removed "High Cap"
from the three other MacOSes which I support on this DA: 10.4.11,
10.3.9 Server and 10.3.9.
In every case, I am using the latest updates to the respective systems.
http://groups.google.com/group/hq-a <+> A home for the Hackintosh
community.
To subscribe to the HQ-A group, send email to hq-a
[email protected]
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