Remember to press down on the Option key while the system boots. Power it up Mac (you could also restart it if it was already powered on). Plug the USB flash drive into the USB port of your Mac.
#How to make a bootable usb mac os sierra install
Close the terminal after this step and get ready to install macOS Sierra. After some time, Terminal will display a ‘Copy Complete’ and Done, meaning that the installer file has been successfully copied to your drive. After that, Terminal shall copy the installer file to your USB drive. Press Y (to go ahead with formatting the drive) and press Return. After you’ve typed it in completely, press Return.Īt this juncture, a message will appear on the screen telling you that the external drive shall be formatted if you go ahead. It should be noted that Terminal won’t show the characters when you enter the passcode. If you are asked to enter the admin password, do it. Note that you need to put the name of your external drive in place of ‘nameofyourdrive’ in the above code.
After launching Terminal, copy the code provided below: The Terminal is really a very simple tool to work on, contrary to its popular image. Create A Boot Disk Using The TerminalĪfter you have the installer software and a hard drive ready, you need to make the latter into a bootable drive using the Terminal of the Mac. 5 External Hard Drives for Ultimate Backup.
#How to make a bootable usb mac os sierra how to
The drive you use will be formatted automatically in the process of being converted into a bootable drive. Note that the minimum capacity of the USB drive has to be 5 GB. Have An External Hard Drive Handyįor making a bootable drive, you need a hard drive or a USB flash drive that has enough room for the installer software.
If the installer runs automatically after being downloaded completely, close it. To counter that, you need to download the installer again after locating it in the Purchased tab. Normally, one would download the beta version through the App Store, which goes straight to the Applications folder after the download is complete.But here is a catch: if Sierra is already installed on your system, the installer software won’t go to the Applications folder.
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