Announcement: Upgrade to macOS Mojave

With features like Dark Mode, Stacks, and four new built-in apps, macOS Mojave helps you get more out of every click. 
Find out how to upgrade to macOS Mojave > https://support.apple.com/macos/mojave

Related Article

Set up your new Mac

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Question:

Question: how can I have a copy of the OS for an emergency boot?

Hi there! Is there a way of having a copy of the OS in a USB flash drive or external HD for a emergency boot? thanks and have a good one!

Posted on

Reply
Question marked as Apple Recommended
Answer:
Answer:

Download macOS High Sierra on the Mac App Store, and then install macOS on that device instead of your usual startup disk. Just be sure to designate the proper installation location when you get to that installation step: click the installer's Show All Disks button, and choose the external disk or properly formatted flash drive.


User uploaded file


To boot from it read How to select a different startup disk - Apple Support. No third party software is required.

Posted on

Page content loaded

Question marked as Apple Recommended

Mar 17, 2018 9:44 PM in response to luis_garrido In response to luis_garrido

Download macOS High Sierra on the Mac App Store, and then install macOS on that device instead of your usual startup disk. Just be sure to designate the proper installation location when you get to that installation step: click the installer's Show All Disks button, and choose the external disk or properly formatted flash drive.


User uploaded file


To boot from it read How to select a different startup disk - Apple Support. No third party software is required.

Mar 17, 2018 9:44 PM

Reply Helpful
User profile for user: luis_garrido

Question: how can I have a copy of the OS for an emergency boot?