ML10.8.4 on Optiplex 745

Preface

I did install SL on the Optiplex745 using myHack it was a breeze but needed the Mountain Lion I had the problem most people had no matter what I tried the installer wouldn't see the HDD so as usually I tried an unorthodox approach and it worked!

Dell Optiplex 745 Specs

 Dell Optiplex 745 mini tower, 2.13 GHz Intel core 2 duo, 2GB 667MHz DDR,   Bios 2.66

  SATA 160GB ST3160827AS dual partitioned with  NTFS and hfs+ partitions.
 DVI graphics card

 What I needed

   - SATA to USB adaptor to make a HD a USB drive

   - myHack 3.3.1

   - Files from osx86 http://wiki.osx86project.org/wiki/index.php/HCL_10.8.0/Desktops

only needed BCM7522D and patched IOATAFamily kexts for a post install

   - Mountain Lion as it is not available on Apple store I got 10.8.4 from a torrent

   - Another working mac or hackintosh (I have a D430/Lion which has been working really good)with       the  kextwizard app  to load kexts and fix permissions

   - A little bit of patience and perseverance

 The process

 I made the USB using myHack 3.3.1 , but no matter what I tried it wouldn't see the HD to install

only the USB, was about to redo and go the Unibeast way when I saw somebody stating he managed to install it but putting the HD as a USB drive, I tried it , made sure the BIOS was set without any HDD  and it did see the HDD and the installer started but it got stuck half the way, here is where patience pays,  Tried a couple of times same result sometimes Darwin wouldn't even boot, trick was power off and unplug it from the power then it would at least get stuck half the way. It was worth continuing this way, added &nbsp IOATAFamily to the E/E on the installer USB and AHCI_Extended_injector to S/L/E,  a couple of shots and it did completed the installation up to the 1st boot and initial setup. 

   Then put the HD back as a regular HDD and the bootloader came up but got the infamous waiting on root, a few shots and the same, so put the HD back as a USB and from another working Hackintosh installed the BCM7522D network kext  and the IOATAFamily kexts  too S/L/E on the installed partition recommended to get rid of the waiting on root, and it did go. For me this is good enough there are more extra kexts they recommend but I can get some work done with this and so far so good is been almost rock solid a few stuck on boot, the power completely off unplugging it takes care of that.

Final thoughts

  It was a typical install with quite a few retries  as usual but in the end it works good. Got the Eclipse/Xcode already working well on this box.