How do I install macOS Sierra on an external hard drive?
First, you have to turn off the Mac on which you want to run Sierra from the bootable drive. Then, before switching it on, connect the drive through the Mac’s USB Port. Then turn on your Mac, and as soon as you hear the startup sound, press the Option key and keep it pressed.
Why is my hard drive not connecting to my Mac?
If you’ve plugged in a flash drive or USB drive and it’s not showing up on your Mac at all, it could be down to a faulty cable or USB port. Try a different USB cable — even cables with no visible defects can fail. Try connecting the hard drive to a different USB port — it could be a hardware issue.
Why do I have a problem installing macOS Sierra?
macOS Sierra problems: Not enough space to install. If you get an error message while installing macOS Sierra saying that you don’t have enough hard drive space, then restart your Mac and boot into safe mode. To do this, turn off your Mac and wait 10 seconds, the press the power button.
How to create a bootable macOS Sierra installer drive?
Here’s how to create a bootable macOS Sierra installer drive. Launch the App Store app, then look for macOS Sierra in the store. ( Here’s a link .) Click on the Download button, and your Mac will download the installer to your Applications folder. If it automatically launches after download, quit the installer.
Can you run macOS Sierra from an external hard drive?
Once the above step completes, your external hard drive will be ready to run macOS Sierra on any compatible Mac. First, you have to turn off the Mac on which you want to run Sierra from the bootable drive. Then, before switching it on, connect the drive through the Mac’s USB Port.
How big of a hard drive do I need for Mac OS Sierra?
If you have a Mac, then you probably cannot wait to get your hands on the Sierra – provided your system supports it. However, even if your Mac does support Sierra, there may be a few reasons as to why you may not be able to install it on your hard disk. For starters, it takes around 8GB of storage space.