Make a Bootable USB macOS Mojave Installer

Andy

Administrator
In order to do this article, you need a working Mac and 16 GB of flash or pen drive.

Click here to download the macOS Mojave installer directly from Apple App Store.

It will open App Store or Software Update and download the macOS Mojave Installer to the /Applications

While it's downloading, go to Disk Utility, select the pen drive, click Erase and format using Mac OS Extended (Journaled) fill the name with INSTALLER for easy label identify.

Launch Terminal App and type:

Code:
sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia --volume /Volumes/INSTALLER
You can also add --nointeraction at the end of the command above if you prefer to have no interaction (the normal interaction will ask to format your flash drive, press Y to continue)

Hit return or enter to execute the command and it will prompt for the local admin password, once the password entered, it will then begin the process of making the bootable USB installer:

Code:
“Erasing Disk: 0%… 10%… 20%… 30%… 100%…
Copying to disk: 0%… 10%… 20%… 30%… 40%… 50%… 60%… 70%… 80%… 90%… 100%…
Making disk bootable…
Install media now available at “/Volumes/INSTALLER”
Once you see the ‘Install media now available at “/Volumes/INSTALLER” message, that means your macOS Mojave boot install disk is complete and it’s ready to use.

If you boot your Mac and press option/alt at the chime, it will give you the option to boot from the newly created USB boot install disk.

Installing or upgrading to macOS Mojave takes about 45 minutes to an hour or so, perhaps longer or shorter depending on the Mac model and disk performance.
 
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