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Member Since 14 Aug 2005
Offline Last Active Mar 16 2006 02:24 AM

Topics I've Started

All platform flags?

21 August 2005 - 11:41 PM

What are all the platform flags, and what do they do?

I know about the existence of x86pc and ACPI...

But now I read that you can do both at the same time? (platform=ACPI|x86pc) What does this accomplish?

And what platform is being loaded when I don't use a platform flag at all? It's apparently neither ACPI nor x86pc since it behaves differently from both of those on my machine.

Mostly just curious. Thanks in advance.

Force a kext to load at startup?

20 August 2005 - 09:44 AM

I've discovered that if I remove the files:

Tiger will load certain kexts at boot just fine (as well as recreate those two files). Unfortunately, when I reboot a second time, the kexts that loaded just fine before will no longer load.

(Specifically, I'm having troubles getting AppleIntelPIIXATA to load at boot. No prob if the kextcache and mkext files are NOT there, but it won't load if they are. :( )

How can I force a certain kext to load at every startup?

[HowTo] Speed up hard disk access

18 August 2005 - 08:18 PM

[Search words: speed slow hard disk drive access read write sequential random ultra dma udma]

NOTE: This fix only seems to work for Intel chipsets. :(

To check your hard drive speed, download Xbench from here:
And do the disk test. If you're getting speeds around 2-3 Megs/Sec, then the following steps should hopefully fix the problem for you.

1) Download AppleIntelPIIXATA.kext from here: (Thank you, madcowsb!)
Attached File  AppleIntelPIIXATA.kext.zip   173.71KB   11589 downloads (Double-click it to extract it.)

2) In a terminal:
cd /System/Library/Extensions/
sudo mv AppleIntelPIIXATA.kext AppleIntelPIIXATA.kext.disabled (Just in case you already have this kext installed. If not, you may receive an error. Don't worry about it.)
sudo cp [path to downloaded file]/AppleIntelPIIXATA.kext ./
sudo chown -R root:wheel AppleIntelPIIXATA.kext

3) Reboot and enjoy a speed boost.

4) If, after a SECOND reboot, the speed boost has disappeared, download IOATAFamily.kext from here: (This comes off of the Darwin 8.01 install CD.)
Attached File  IOATAFamily.kext.zip   243.19KB   170624 downloads (Double-click it to extract it.)

5) In a terminal:
cd /System/Library/Extensions/
sudo mv IOATAFamily.kext IOATAFamily.kext.disabled
sudo cp [path to downloaded file]/IOATAFamily.kext ./
sudo chown -R root:wheel IOATAFamily.kext

6) Just to be on the safe side, delete the following files (not sure if this is necessary):
(Don't worry, Tiger will rebuild these files on startup.)

7) Reboot.

(Remember that your original kext files have been renamed with a ".disabled" extension. If you have any problems, delete the kexts that you added, and rename the originals back to their original filenames.)

I think that covers everything.
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