- #How to install macos sierra from usb mac os#
- #How to install macos sierra from usb install#
- #How to install macos sierra from usb password#
- #How to install macos sierra from usb download#
#How to install macos sierra from usb mac os#
In order for your external device to function as a startup disk, it must be formatted as Mac OS Extended and employ a GUID partition map. Step One: Format Your External Startup Disk While that downloads, you can move onto the next section and start getting your external device ready. Make sure you click “Download” and let it save to your Mac’s hard drive.
#How to install macos sierra from usb download#
You can download the Sierra installer in the App Store by searching for “macOS”. Second, you’ll need a copy of the macOS Sierra installer. If this still sounds useful to you, though, read on. So keep that in mind-you probably won’t want this to be your main macOS system. You definitely want to use a USB 3.0 (or USB-C if you’re using a newer Mac) device, and even then, your system isn’t going to be nearly as snappy as your normal internal drive. For example, your storage capacity is likely to be significantly less than your normal system disk, especially if you use a flash drive.Īlso, speed will be a limiting factor. Of course, while these are some pretty good advantages, there are also some distinct disadvantages. Or you can take it with you to work or a friend’s house while keeping all your applications and files. Maybe you’re having problems booting into your Mac and you want to try to access the internal drive to do some troubleshooting or back up important files-this will let you do that. This allows you to take a fully-fledged macOS installation with you wherever you go, for use on any Sierra-compatible Mac. The method described here actually creates a fully functioning macOS Sierra installation on an external USB device.
#How to install macos sierra from usb install#
Keep in mind, this is not the same as using an external device to install macOS, which lets you install macOS from an external USB device. You can now quit Terminal and eject the volume.Ever wish you could take your Mac with you on an external drive? You can actually install macOS Sierra on an external drive, flash drive, or SD card, then use that device as your macOS system disk wherever you go. When Terminal says it's finished, the volume will have the same name as the installer you downloaded, such as Install macOS Big Sur.After the volume has been erased, you may see an alert stating that Terminal would like to access files on a removable volume.Terminal displays the progress as the volume is being 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 your password.
#How to install macos sierra from usb password#
When prompted, type your administrator password and press Return again.* If your Mac is using macOS Sierra or earlier, include the -applicationpath argument and installer path, similar to the way this was done in the command for El Capitan. Sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia -volume /Volumes/ MyVolume -applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app Sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/ MyVolume Sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia -volume /Volumes/ MyVolume Sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia -volume /Volumes/ MyVolume Sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia -volume /Volumes/ MyVolume If it has a different name, replace MyVolume in these commands with the name of your volume. These assume 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 following commands in Terminal.Open Terminal, which is in the Utilities folder of your Applications folder.Connect the USB flash drive or other volume that you're using for the bootable installer.