You'll be presented with a list of bootable drives. You may now restart your Mac and hold down the Option key after hearing the boot sound. If the USB stick is not listed it is probably not set up correctly, there are some specific steps to make a bootable install disk Copy the file off the USB drive. You should see a screen to select the disk to boot from. You will be asked to enter your Administrative account password.Īfter about 30 minutes the creation of your USB Install Key for OS X El Capitan will be complete. Reboot the Mac with the USB stick connected hold alt during startup. Sudo '/Applications/Install OS X El Capitan.app/Contents/Resources/createinstallmedia' -volume '/Volumes/El Capitan' -applicationpath '/Applications/Install OS X El Capitan.app' -nointeraction Additionally, make sure you do not have any other volumes named 'El Capitan' except for the one we just created in Step Five.Įxecute the following command in the Terminal window to create your OS X El Capitan Install key. Make sure your empty USB key is still inserted. Connect a 8GB or larger USB key to your computer then launch the Mac App Store from your dock.
#How to install os x off bootable usb how to
Launch Terminal from the Applications:Utilities folder. These are instructions on how to make a bootable OS X El Capitan USB key. When asked to confirm click the Partition button. Next click the Apply button to save your changes.
![how to install os x off bootable usb how to install os x off bootable usb](http://dosdude1.com/highsierra/tutorialimages/step1.png)
Set the Partition Layout to 1 Partition, set the Name to 'El Capitan', and set the Format to Mac OS Extended (Journaled).Ĭlick the Options button then choose GUID Partition Table from the popup window then click the OK button. Select your USB thumb drive from the list on the left and click the Partition tab. Launch Disk Utility from the Applications:Utilities folder. Choose 'Finder' then select 'Go' from the menu bar. If you are already on, or have already downloaded El Capitan, you may need to click the Download button. Connect the USB flash drive to the computer you wish to install macOS.
![how to install os x off bootable usb how to install os x off bootable usb](https://fthmb.tqn.com/2iwF1-JTb0sLZwMY-1_GHRTm_q4=/2996x2004/filters:fill(auto,1)/LaunchpadMavericks-57d325145f9b589b0abcfaf1.jpg)
Navigate to the OS X El Capitan application page and click the Get button. These are instructions on how to make a bootable OS X El Capitan USB key.Ĭonnect a 8GB or larger USB key to your computer then launch the Mac App Store from your dock.