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Open the Terminal app and copy-and-past the following commands to make a booatble USB installer from macOS image:įor Majove: sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolumeįor High Serria: sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolumeįor EI Capitan: sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume -applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app
#Macos high sierra download external mac os
Open Disk Utility app and format the USB drive with APFS or Mac OS Extended. And backup the data in that USB drive as the installer erase all content from it. Now connect an external flash drive with more than 16G free space.
#Macos high sierra download external install
You will find a file started Install, such as Install macOS Majave.
![macos high sierra download external macos high sierra download external](https://images.macrumors.com/t/Z3E2cLsTY73mmYDjxDTQBrGFt-c=/1600x1200/smart/article-new/2017/02/macoshighsierra-800x464.jpg)
When the download is completed, the installation windows opens automatically, just close the window and go to Application folder. The downloaded file will be located in Application folder. Click "Get" button to download the installer image on your Mac. Search macOS name in app store (Mojave, High Serria, EI Capitai). However, this could be a lot of challenges if you had no clue about commands and I suggest taking a look at the other solutions in this post to avoid messing up the computer with the wrong commands. This means a lot of daily and advanced tasks on Mac can be done via text commands such as creating bootable USB installer for Mac. MacOS (formly named Mac OS X) is just a variant of popular Unix based operating system.
#Macos high sierra download external how to
Method 1: How to Create Bootable USB Installer for Mac via Commands
#Macos high sierra download external software
Here's how to do it from text commands and using a purpose-built software called WizDMG. To create a bootable macOS installation disk, you have to burn the DMG file to a USB drive as CD/DVD is not available for Mac computers.
![macos high sierra download external macos high sierra download external](https://photos5.appleinsider.com/gallery/33714-59654-003-High-Sierra-on-App-Store-xl.jpg)
It can also help in situations where the operating system is corrupted or installation from app store shows errors. Rather than download and install a new OS from Apple's servers each time, it can be used for multiple installations on different machines. I don't know whether to spend my limited means on a hard drive that won't work or is this a problem that Apple is acknowledging even and should I wait for the issues to be resolved? Worrying as we are always warned to back up regularly.Learning how to create a bootable macOS installation disk can be helpful in a variety of situations. I am feeling a sense of frustration and actually loss of trust. I don't know if that is ok to do?Īlso I now read on the Apple Community support that High Sierra installation has had numerous problems accessing files from external hard drives and being unable to use Time Machine etc.Ī lot of the info went over my head but I am left concerned that should I use the hard drive to store what I have and then install the High Sierra OS I may encounter problems or worse lose precious data.Īpple seem to lack communication with their customers and are difficult to contact directly with concerns. I was going to take some things from an old Windows OS laptop plus use to back up from my Mac. I back some stuff to the iCloud but decided to get external hard drive too and was about to plump for a Western Digital 4TB My Book as it has USB2 and 3 compatibility.
![macos high sierra download external macos high sierra download external](https://878463.smushcdn.com/1984689/wp-content/uploads/2017/09/MacAppStore640.jpg)
I have yet to move from Sierra to High Sierra OS, thankfully, as seems to be some problems. I have an Apple MacBook Air 13.3in with 128 GB SSD.