As with previous releases of OS X El Capitan distributed through the site developers, and a little effort, you can prepare yourself a bootable USB-stick with OSes. This will make the installation process more flexible. The procedure for creating a bootable drive with OS X El Capitan is slightly different from previous systems, but not much more complicated. Before continuing, we suggest to familiarize with the requirements.
- The computer that is compatible with OS X El Capitan.
- The image of the operating system OS X El Capitan.
- Blank USB-drive capacity of at least 8 GB.
How to create a bootable "flash drive" with OS X El Capitan:
Step 1: Connect the USB-drive to the computer.
Step 2: Download and install the latest version DiskMakerX. Run the program.
Step 3: Click Yosemite 10.10 (optional El Capitan is not available yet).
Step 4: Press to select «Select an Install».
Step 5: In the folder "Programs", locate the file Install OS X 10.11 Developer Beta and click «Choose».
Step 6: Press the «An 8 GB USB thumb drive».
Step 7: Select the USB-drive and click «Choose this disk».
Step 8: The program warns that the next step, it will erase all data on the disk. Press «Erase then create the disk», then «Continue».
Step 9: Click to continue and enter the administrator password.
Step 10: After you finish creating a boot disk, click Quit.