Instructions for the dmg image file: - Before anything, check the md5 of the iATKOS_ML2.dmg file you downloaded. The correct md5 of iATKOS_ML2.dmg >>> 2aa379fc63fa20ad95e046e14a8b30d4 If the md5 of your dmg file does not match the md5 above, then you have a faulty file. In this situation anything including freezes, boot errors, any kind of error messages causing frustration of your soul is possible! Take my word. OS X: DVD/Blu-Ray: Burn the dmg image to a blank Dual Layer DVD (±R, ±RW) or Blu-Ray Disk (BD-R, BD-RE) using Disk Utility on OS X and then you are ready to boot with the disk and install OS X to your computer. Burn the disc at the minimum speed and verify the recording process, otherwise you may have a faulty disc of iATKOS ML2 which is as same as a faulty dmg image. USB HDD/Flash Drive/Stick: Restore the dmg image to a USB HDD/Stick using OS X Disk Utility and install the chameleon bootloader to the USB target using this pk...