When I was building my PC I picked parts that were more or less going to be compatible with OS X. So randomly I decided to try to install it, but here's the thing - my hard drive and SSD were already fully partitioned with NTFS partitions and MBR scheme.

Here's my experience in overcoming the issues that popped up during the install:

Converting MBR partitions to GUID

All the procedures I found involving converting MBR to GUID seemed to include loss of data, luckily I found Partition Assistant, a free tool that looks like it contains some shady stuff, but it was clean, even though the download went through CNET. It converted my drive's scheme to GUID in seconds, without losing data and it also seemed really fast with resizing my NTFS to make some space for OS X.

Installing Yosemite

In general I just followed the procedure for making a bootable USB with UniBeast and set up my UEFI settings properly as per the guide on tonymacx86.

To get into the installer I had to use the following bootflags:


-v nv_disable=1 npci=0x2000

Then once the installer booted up, I formatted my newly unallocated space and the installation went without a hitch in about 15-20 minutes.

Post-install procedure

Once the installer finished I booted into Chimera (the bootloader UniBeast installs) and used the following flag to get into the OS:


nv_disable=1

This one was needed since the OS doesn't yet have the appropriate drivers for my GPU. After creating an account, everything worked properly out of the box except the graphics card driver (it was really laggy and low-res as a generic driver tends to do).

Next I installed the NVIDIA Web Driver for Yosemite 10.10.4 (did not reboot after installation finished, but went on to MultiBeast) and used MultiBeast Like so:

  • Quickstart:
    • DSDT Free
  • Drivers:
    • Audio - VoodooHDA v2.8.7 (Latest at the time of writing)
    • Network - RealtekRTL8111 v1.2.3

Everything else I left stock and finally rebooted, I had to boot in with nv_disable=1 and once I logged in I switched the default driver (by selecting NVIDIA Web Driver from the NVIDIA icon in the top menu bar), and rebooted one last time. Now I'm done, everything seems to work - Network, Audio, Graphics.

I spent quite a few hours trying to get the boot flags right and it was really fun, I hope this comes in handy to someone.

In closing, here's a picture of my setup: http://i.imgur.com/Be6nJjW.jpg

submitted by Byatis
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