Installing os x on external hard drive

Step 4 : You will have to fill the available boxes with the Big Sur or another name in the Name section. Step 5 : After completing the above task, click on the Erase button. Now wait for a few seconds as the format process is started and once it is completed, click on the Done button. If you already got this file, then move to Part 3. If not, please download.

The installation file is 10GB so it could take some time to complete the download process. This is largely dependent on how fast your Internet connection is.

Your second task is done and you have successfully download the dmg file of macOS Big Sur. Now, you need software to burn macOS Big Sur dmg file to external drive. To make a macOS Big Sur bootable drive, you have to burn. However, this must be done with the right software. A single copy-paste won't work in this way. In here, we will use DMG Editor as example, which can directly write. On the main interface, you will get Burn and Extract options.

Click the Burn section, and then click on the Next button. Also ensure that the external drive is detected by this application, if not, then reconnect the drive to Mac. After uploading the OS files, you need to click on the Burn button and within a short time, the burning process will be completed. Once it is done, you will get a successful message on your Mac screen.

The burning process is completed and a bootable drive is ready to use. Now, you need to boot this drive to install macOS Big Sur. The comprehensive steps are provided below. Step 2 : Shut down your Mac and then turn it on. Make sure to press the Option key at booting. Now, select the bootable external drive and then press the Return key. Step 4 : Now, provide the installation path, i.

Go ahead and click the Download button to start downloading the installer. Just click Continue. Once it has been downloaded, just double-click the installer, which will be located in the Applications folder. Keep clicking past the license agreement, etc. By default, it is set to MacBook. I named my external hard drive OS X and that shows up in the middle. Click Continue and then follow the instructions to complete the installation. OS X will automatically continue installing onto the external hard drive rather than booting up to your internal version of OS X.

Note that by default, the Mac will start booting up directly to the external hard drive until you change it. This will load up OS X Recovery. To switch back and forth between the internal and external drive, you have to restart your computer and hold down the OPTION key. Thank you! You have successfully joined our subscriber list. Kirk says:. August 9, at am. Apples faun says:.

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