[cite] freshcuts:[/cite] Try this for your ALC850. http://rapidshare.com/files/94374020...stall.zip.html

Problem solved so far (install in progress)

I had to replace in the iso the AppleNForceATA.kext (Medevil last version 1.0.3) by the one from the 10.5.1 iso (Medevil kext version 1.0.2). Zephyroth mentioned it in one of his posts 2 days ago (I had not seen it before...)

Steps:
Mount 10.5.1 iso

Unpack the Extensions from 10.5.1 in ~/Desktop/ExtensionsOld:
mkextunpack -d ~/Desktop/ExtensionsOld /Volumes/YourMountedISO10.5.1/System/Library/Extensions.mkext

Mount 10.5.2 iso in read write mode:
/usr/bin/hdiutil attach /"Your ISO File" -readwrite

Unpack the 10.5.2 extensions in Extensions.mkext:
mkextunpack -d ~/Desktop/Extensions /Volumes/YourMountedISO10.5.2/System/Library/Extensions.mkext

Delete the Extensions.mkext in the 10.5.2 iso:
rm -R /Volumes/YourMountedISO10.5.2/System/Library/Extensions.mkext

replace AppleNForceATA.kext in the 10.5.2 Extensions folder:
Drag and drop in finder

Repair permissions:
chown -R root:wheel ~/Desktop/Extensions/*
chmod -R 755 ~/Desktop/Extensions/*

Create the updated mkext file in the 10.5.2 iso:
kextcache -a i386 -K /Volumes/YourMountedISO10.5.2/mach_kernel -m /Volumes/YourMountedISO10.5.2/System/Library/Extensions.mkext ~/Desktop/Extensions

Unmount the iso and burn it.

I used the instructions given here: http://osx86.wikidot.com/how-to-s#toc3

Good luck it this can help anybody!

I think I know what my problem is. I unplugged both of my SATA HD's and left just my SATA dvd drive in place. I then tried to use a usb drive. But the EXACT same problems occured. I.e waiting for root device etc. So it has to be a problem with my Plextor SATA drive.
Is there any workaround? Perhaps making the install run from another partition or drive? Can that be done?

try different bios settings for your sata dvd drive

I just did and nothing changed.
I am going to try it on a fresh install with no audio drivers selected.
thank you !


EDIT: nope not even on a fresh install.Maybe this release is not compatible with my audio chip or mobo...

Hi, I can't install this version , it cannot start at all , I have tried with Zephyroth's mac 32 bit version, and everything was fine apart from the kexts for SATA, but now gives me the following message: "Local APIC version not 0x14 as expected" in the beginning and doesn't start the install
My system is : Acer ASPIRE 9304 (MCP51 chipset, Turion 56 , 4 GB RAM ,)

When I want to install this version from the bios, my pc restarts automatically. Why ?

Thank you !

What do you mean install from BIOS?
After you enter and then exit BIOS, PC restarts - this is how functions the system. This is normal.

When I say from the bios, I mean I want to install directly Mac before Windows starts. I insert the DVD I launch the boot installation but my pc restarts. The last line of Darwin boot before restarting is : HFS+ file:[system library/extensions.mkext.] from 422d690

Thank you

just tried 10.5.2 rev1 and it hung on some CPU powersave kext. I'm not panicking;
the boot process after install did however :)
will scrub some of those pesky kext's in /s and move along at a later stage.

( running dual Opterons in an MPC55 board called the KFN5D )