Dual booting Ubuntu and Mac osx on a hackintosh part 3 (Installing Ubuntu Part 1 Creating a Bootable drive in mac osx)

Okay so you've just finished installing Mac OSX on your hackintosh and now your ready to install Ubuntu. Here's how.

Creating a Bootable USB in Mac OSX

1. Download Ubuntu Desktop

2. Open the Terminal (in /Applications/Utilities/ or query Terminal in Spotlight).

3. Convert the .iso file to .img using the convert option of hdiutil (e.g.,hdiutil convert -format UDRW -o ~/path/to/target.img ~/path/to/ubuntu.iso)

Note: OS X tends to put the .dmg ending on the output file automatically.

4. Run diskutil list to get the current list of devices.

5. Insert your flash media.

6. Run diskutil list again and determine the device node assigned to your flash media (e.g. /dev/disk2).

7. Run diskutil unmountDisk /dev/diskN (replace N with the disk number from the last command; in the previous example, N would be 2).

8. Execute sudo dd if=/path/to/downloaded.img of=/dev/rdiskN bs=1m (replace /path/to/downloaded.img with the path where the image file is located; for example, ./ubuntu.imgor ./ubuntu.dmg).

• Using /dev/rdisk instead of /dev/disk may be faster
• If you see the error dd: Invalid number '1m', you are using GNU dd. Use the same
  
  command but replace bs=1m with bs=1M
• If you see the error dd: /dev/diskN: Resource busy, make sure the disk is not in use. Start the 'Disk Utility.app' and unmount (don't eject) the drive

9. Run diskutil unmountDisk /dev/diskN (replace N with the disk number from the last command; in the previous example, N would be 2). 

10. Restart your Mac and press alt/option key while the Mac is restarting to choose the USB stick.