When the OS X Utilities screen loads, open if you need to wipe or format the target Mac’s internal hard drive first.
Set Format to and Scheme to GUID Partition Map . Name it MyVolume .
Creating a functional bootable ISO of OS X Mavericks is not trivial. It involves several steps that the “Webdude repack” claims to have already performed:
Open Disk Utility, select the USB partition, click Restore .
Summary
Apple never officially distributed OS X Mavericks as a direct ISO file. The only legitimate method was downloading “Install OS X Mavericks.app” from the Mac App Store, which is no longer available for new downloads. To create a bootable USB from that .app , one would use the createinstallmedia command in Terminal. However, this method requires an existing Mac, a working copy of the installer, and yields a USB drive—not an ISO.
How To Install Mac OS Mavericks In Virtualbox The Correct Way
sudo dd if=MavericksInstall.iso of=/dev/disk2 bs=1m
Key features of this repack (based on archived forum posts):
If you have access to a working Mac, the most reliable way to create a bootable installer is through the Terminal. Format the USB Disk Utility Select your USB drive and click Set the name to , the format to Mac OS Extended (Journaled) , and the scheme to GUID Partition Map Run Terminal Command and enter the following command: