Diskmaker will then ask you to select the drive you want to use as a Yosemite bootable drive. If it doesn’t detect the installer, click on “Use Another Copy” to navigate to the installer you want to use. If this is the right installer, click on “Use this copy.” Diskmaker should automatically search your system for the OS X 10.10 Installer and should present the file with its location to you. You’ll be presented with options to make installers for either OS X 10.8, 10.9 or 10.10. Once you have Diskmaker downloaded, connect your USB to your Mac and open up DiskMaker X.Ģ.

DiskMaker X for your Mac – you can download it from hereġ.

The OS X Yosemite installer – this should be ideally placed inside your Applications folder.

An 8GB or larger USB drive or external hard drive (this can be a partition on a larger drive as well).

We’ve described both methods below.īefore you get started, make sure you have the following stuff with you: You can either use a simple graphical interface, or you can use OS X’s built-in Terminal utility. Now there are two different methods to create a bootable USB drive for Yosemite. So, if you plan to use the same installer file on different Macs in the future, or as in this case, you plan on creating a bootable drive, be sure to copy the installer to another location, such as an external drive, before you install Yosemite. And if you leave it there, the installer will delete itself after Yosemite finishes installing on your Mac. Similar to previous OS X versions, when you download Yosemite from the Mac App Store, it’ll automatically be downloaded to your Applications folder. You can now quit Terminal and eject the volume.Keep the Installer From Being Deleted Automatically

When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Monterey.

After the volume is erased, you may see an alert that Terminal would like to access files on a removable volume.Terminal shows the progress as the volume is erased. When prompted, type Y to confirm that you want to erase the volume, then press Return.Terminal doesn't show any characters as you type. When prompted, type your administrator password.If the volume has a different name, replace MyVolume in the command with the name of your volume. Each command assumes that the installer is in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. Type or paste one of the commands below into Terminal, then press Return to enter the command.Open Terminal, which is in the Utilities folder of your Applications folder.Plug in the USB flash drive or other volume that you're using for the bootable installer.

Create bootable usb yosemite