iBoot + MultiBeast: Another way to install iATKOS L2

Any OSx86 installation guide can seem daunting at first glance, especially when trying to remember cryptic terminal commands and sorting through volumes of misinformation on the web.  This guide requires no coding, terminal work, or Mac experience of any kind.  You will not need access to a Mac.  In fact, it's easier and faster for me to install Snow Leopard with fully working components on my system than it is to install Windows 7.  And more fun.

iBoot + MultiBeast method is designed and tested for any desktop or laptop running the latest line of Intel processors, the Core i3/i5/i7s.  I have had reports of success with older machines as well including CoreDuo, Core2Duo, and even Pentium 4.  However, AMD processors are not supported.


  • A computer running an Intel Processor
  • A blank CD
  • A iATKOS L1, L2 / S3 / Retail DVD
  • To leave any fear of your computer at the door.
  • Patience and humility- it may not work out perfectly the first time- but with enough tenacity and grit, you'll reach the promised land.  It's easy to get frustrated, but don't give up!  There are a community of users with similar hardware in the iATKOS L2 Forum to provide support if you get stuck.
  • If you have greater than 4gb of RAM, remove the extra RAM for a maximum of 4gb.  You can put back any extra RAM in after the installation process.
  • Use only 1 graphics card in the 1st PCIe slot with 1 monitor plugged in.
  • Remove any hard drives besides the blank drive being used for OS X.
  • Remove any USB peripherals besides keyboard and mouse.
  • Remove any PCI cards besides graphics- they may not be Mac compatible.
  • If using a Gigabyte 1156 board, use the blue Intel SATA ports- not the white Gigabyte SATA ports.
  • It's best to use an empty hard drive- you will have to partition and format the drive. 
  • Always back up any of your important data.
You will need to set your BIOS to ACHI mode and your Boot Priority to boot from CD-ROM first.  This is the most important step, and one many people overlook.  Make sure your bios settings match these.  It's not difficult- the only thing I did on my Gigabyte board besides setting Boot Priority to CD/DVD first was set Optimized Defaults, change SATA to AHCI mode, and set HPET to 64-bit mode.


In order to boot the Mac OS X Retail DVD, you'll need to download and burn iBoot.  For desktops and laptops using unsupported Intel CPUs and graphics, a legacy version of iBoot can be downloaded here.

  1. Download iBoot
  2. Burn the image to CD
  3. Place iBoot in CD/DVD drive
  4. Restart computer
  5. At boot prompt, eject iBoot

  6. Insert your iATKOS L2 Retail DVD and press F5
  7. When you see the screen below, press enter to begin the boot process
  8. When you get to the installation screen, open Utilities/Disk Utility.  NOTE: If you cannot get to the installation screen, retry from Step 4, type PCIRootUID=1 before hitting enter. If that doesn't work then try PCIRootUID=1 -x or just -x which will enter Mac OS X Safe Mode and will allow you to proceed. For some graphics cards, use GraphicsEnabler=No boot flag to proceed. 
  9. Partition your hard drive to GUID Partition Table
  10. Format your hard drive to Mac OS Extended (Journaled).   NOTE: The bootloader can only boot from a disk or partition of 1 TB or less.  Partition larger drives.
  11. For the purposes of this guide, name it Snow Leopard.  You can rename it later.
  12. Close Disk Utility
  13. When the installer asks you where to install, choose Snow Leopard
  14. Choose Customize‚ and uncheck additional options.  This will hasten the install process.  You can always install this stuff later.
  15. Restart computer.
  16. Place iBoot back in drive.
  17. When you get to the boot selection screen, choose your new Snow Leopard installation.
  19. View the super-cool iATKOS L2 Welcome Video, and set up your computer usin MultiBeast 4.3


 What's new in MultiBeast 4.3...
  • Updated Chimera to v1.8.0
  • Renamed NVIDIA GF100 Fermi Patches to NVIDIA 4xx/5xx Support
  • Renamed OpenCL Enabler 10.7.0 / 10.7.1 to 10.7.0 / 10.7.1 netkas OpenCL Enabler
  • Removed OpenCL Enabler 10.7.2
  • Added 10.7.2 / 10.7.3 Combo OpenCL Enabler. 
    • This new enabler contains the functionality from the old OpenCL Enabler plus adds cmf's OpenGL patch and MacMan's patch to add the missing NVIDIA device IDs. 
  • Renamed ATI 48xx Patches to ATI 48xx Support
  • Moved ATI 48xx Device Injector to ATI 48xx Support -> ATI 48xx Device Injector
  • Renamed all ATI 48xx Patch for 10.7.x to 10.7.x netkas ATI 48xx Patch
  • Added 10.7.3 netkas ATI 48xx Patch for 10.7.3 to Graphics -> ATI 48xx Support
  • Added flAked SpeedStepper to Drivers & Bootloaders -> Kexts & Enablers -> Miscellaneous
  • Added maolj's AtherosL1cEthernet to Drivers & Bootloaders -> Kexts & Enablers -> Network
  • Removed OSx86 Software. 
    • The programs in this choice are now available for download here.
  • Added 10.7.2 / 10.7.3 Combo OpenCL Enabler to EasyBeast and UserDSDT installs.
  • Changed npci=0x2000 to npci=0x3000 for all kernel flags.
  • Removed backup function from any script that was backing up and patching kexts.
  • Updated IntelCPUMonitor to v1.0.1 rev505