What are the "best" instructions for making a bootable USB of the GM? And I echo the above comment, wondering what the correct checksum of the file is
If you are not a developer and want to make a bootable USB drive for the OS X Mavericks GM, follow these instructions:
- Obtain a copy of OS X Mavericks GM from the usual sources (torrents, friend with a developer account, etc.)
- The file you download will likely be a .dmg with "Install OS X Mavericks.app" inside. Mount the .dmg and copy "Install OS X Mavericks.app" into your Applications folder.
- Attach an 8GB (or larger) USB flash drive, and open Disk Utility. Select your flash drive in the left column, and then click the "Erase" tab. Format the drive with
Mac OS Extended (Journaled) with the name
Untitled
- Click "Erase..."
- Close Disk Utility once the process completes. Open Terminal and enter the following command (you can copy/paste):
sudo /Applications/Install\ OS\ X\ Mavericks.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ OS\ X\ Mavericks.app --nointeraction
After you hit Enter, you may be prompted for your password. Type it (the cursor in the Terminal window will NOT move) and then hit Enter again. The process should begin.
- You should see something like this (note that this process can take 15-20 minutes to finish):
Erasing Disk: 0%... 10%... 20%... 100%...
Copying installer files to disk...
Copy complete.
Making disk bootable...
Copying boot files...
Copy complete.
Done.
- You can now boot from the USB flash drive by holding the Option key while your computer boots up.
This worked perfectly for me and I hope it helps some of you!