Kernel FSB boot option by mifki/semthex

skr3dii
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The default value for FSB is 200 Mhz if you do not specify anything.
So you should check your motherboard spec and the CPU you are using.

I was booting with 200 Mhz but in fact needed 133 Mhz. (Pentium D805 is 533 Mhz).
Thus my clock was too slow, and sound was crap.

Let say your motherboard support 533 and 800 Mhz FSB, but your processor is 533 Mhz.
Then you should set FSB at boot to 533/4 = 133 Mhz.
It is very IMPORTANT that you set the correct FSB speed.

Mifki just released a new version of his 10.4.8 kernel.

Now you can specify the frequency of the FSB as a boot option.

fsb=<mhz>

Download here: www.filefactory.com/file/f618b4

Semthex kernel does also include the possibility at boot to choose a FSB frequency.The default value is 200Mhz. If you want different value, you have 3 possibilities.

For 100 Mhz: use the -g boot option flag
For 133 Mhz: use the -y boot option flag
For 166 Mhz: use the -z boot option flag

Tips:

Once you know your FSB, you can put it as default value for your boot args. Just edit: /Library/Preferences/SystemConfiguration/com.apple.Boot.plist

You should set this if using semthex kernel and 133 Mhz FSB:

<key>Kernel Flags</key>
<string>-y</string>

First b00t in 10.4.8 GUI

skr3dii
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What you b00ted to the GUI with 10.4.8 kernel? Gr8!
Then first thing you should do to fix rosetta (thanks to myzar):

In Terminal:

sudo update_prebinding -root / -force
reboot

Semthex – 10.4.8 kernel sources released

skr3dii
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My friend semthex just finished his Kernel! Congratulations!
I know you did some late nights to achieve this, bro! Has I did for testing it 🙂

This kernel does NOT need HPET nor NX !!!

Get sources here: http://semthex.freeflux.net/download/
Change log: semthex.freeflux.net/changelog/

Instructions to setup your test partition: link
Instructions to compile the kernel: link

Important:

Semthex has not included the TPM key in the sources,
so if you want to run the GUI, you need to replace commpage.c.

This kernel doesn’t decrypt apple encrypted binaries.
You need the 10.4.8 decrypts to run the GUI.

Please don’t ask decrypts here.
It’s not legit while modding the open source code is.

Mifki kernel – Just tested myself!

skr3dii
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Just tested this new kernel on my own hack! Works like a charm! Congrats mifki!
You need a box with HPET / SSE3 / NX to run this kernel
You need to replace the AppleSMBIOS.kext with the one from JaS 10.4.7 DVD.

If you want an alternative compatible with Non NX, SSE2 and non HPET,
wait for semthex kern.