Thought this may come in handy to some people having troubles installing Snow Leopard,
particularly with the dreaded 'Install Failed' error.
Will also make the install Bootable.

New Updated Package-redownload it.
*************************************************
BUG FIX:No 1
edit IHBootMaker.sh in Contents/Resources/Scripts Folder.
goto line 324 and 351 and change
"$useMkext" = "Yes"
to
"$useMkext" = "On"
Thanks to BladeRunner for pointing this out.
Fixes Mkext and Extensions Folder Creation in Extra Using IHBootmaker.app.

BUG FIX:No 2 (more like enhancement)
This will allow the Generated bootloader to make bootable the selected target as it is installed.

at line 544 of Contents/Resources/Scripts/IHBootMaker.sh take out the #.
#echo "bless" '"$3"' >>"${pkgpostinstall}"
Fixes, not really a bug, just enables the generated package to make bootable the Target partition.

Bug FIX:No 3
Edit Contents/Resources/Tools/IHBMBootfiles/usr/sbin/bless
line 9 replace the block if [ "$3" != "" ] >fi with

if [ "$3" != "" ]
then
bootvolume="$bootarguments#*-folder } "
bootvolume="${bootvolume%%/System/Library/CoreServices/*}"
bootvolume="${bootvolume#*-folder }"
else
bootvolume="$1"
fi

also you need to copy
Contents/Resources/Tools/IHBMBootfiles/usr/standalone/i386/NetkasRC3/boot0
to
Contents/Resources/Tools/IHBMBootfiles/usr/standalone/i386/boot0
for fdisk to work properly.
**************************************************

Usage: Install Package, run IHBootmaker.app
Only Two Bootloaders supported, but you can add your own if you know what to do.
1.
Place your Kexts, DSDT.aml or whatever in the relevant places when the app opens the Folder.Kexts into 10.6 For Snow Or 10.5 For Leopard.

Press Enter/Return when done.
Boot package will be made.Ouput Folder will open.

2.
Restore Retail Snow Leopard/Leopard to USB/HD (can be done before hand)

3.
Install Boot package to same USB/HD

4.
Reboot into same USB/HD and run installer.
Installer should complete with NO ERRORS.

5.
Reboot into fully working Snow Leopard/Leopard.

As long as you place all the required files into the right places this should work flawlessly.
This is part of the 'NEW' INSTAHackintosh V2.0 package which will be released shortly,Or when its ready.
Enjoy

edit:
The ChameleonRC3 Netkas version is the pci=0 version.
NOT tested on Leopard as don't use it anymore but SHOULD work.
You may need to edit the com.apple.Boot.plist/smbios.plist to your requirements.

---

Zotac 9800 GT ECO 1GB

Snow Leopard 10.6.4

Thanx, i'll try something with that!

---

updated package check post 1

---

Zotac 9800 GT ECO 1GB

Snow Leopard 10.6.4

I've created boot package following the instructions, but upon booting the USB disk I got KP.

No matter what options/kexts I choose I get KP, but I will not be trying any more because I'm able to install SL using other methods. I do get KP also, but not during the install, I got KP when booting installed SL.

___________________
AMD Athlon X2 550
Gigabyte UD4P 790fx
8Gb DDR2 RAM
Ati Radeon HD3850

Did you try NOT using vanilla kernel???
You have Amd, this is meant for Intel OR use a custom kernel.

---

Zotac 9800 GT ECO 1GB

Snow Leopard 10.6.4

Yes, I tried modbin test 7 kernel.

Actually a few bug fixes where needed
When the buglist gets to 5 I will upload NEW package
if you follow these fixes it should work.

BUG FIX:No 1
edit IHBootMaker.sh in Contents/Resources/Scripts Folder.
goto line 324 and 351 and change
"$useMkext" = "Yes"
to
"$useMkext" = "On"
Thanks to BladeRunner for pointing this out.
Fixes Mkext and Extensions Folder Creation in Extra Using IHBootmaker.app.

BUG FIX:No 2 (more like enhancement)
This will allow the Generated bootloader to make bootable the selected target as it is installed.

at line 544 of Contents/Resources/Scripts/IHBootMaker.sh take out the #.
#echo "bless" '"$3"' >>"${pkgpostinstall}"
Fixes, not really a bug, just enables the generated package to make bootable the Target partition.

Bug FIX:No 3
Edit Contents/Resources/Tools/IHBMBootfiles/usr/sbin/bless
line 9 replace the block if [ "$3" != "" ] >fi with

if [ "$3" != "" ]
then
bootvolume="$bootarguments#*-folder } "
bootvolume="${bootvolume%%/System/Library/CoreServices/*}"
bootvolume="${bootvolume#*-folder }"
else
bootvolume="$1"
fi

also you need to copy
Contents/Resources/Tools/IHBMBootfiles/usr/standalone/i386/NetkasRC3/boot0
to
Contents/Resources/Tools/IHBMBootfiles/usr/standalone/i386/boot0
for fdisk to work properly.

---

Zotac 9800 GT ECO 1GB

Snow Leopard 10.6.4

Thanx, I will give it another try with this fixes during weekend.
Actally, I've installed OSX ASL using other guides but I cant boot SL.
Will try to make it bootable with this app.