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- #Apple macos high sierra create image how to
- #Apple macos high sierra create image install
- #Apple macos high sierra create image portable
- #Apple macos high sierra create image code
#Apple macos high sierra create image install
You might want to keep installing files on an external drive if you think you might need to install the operating system multiple times or on different computers.
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In the following instructions, we will use a USB flash drive as an external carrier example. Give your disk the name of the operating system, e.g., Sierra, Mojave, Catalina. Whichever type of drive you choose, make sure that it has at least 12GB of free memory.īear in mind-when you download an installer, the disk will be reformatted to suit the operating system you’re trying to run.
#Apple macos high sierra create image how to
In this article, you’ll find detailed instructions and answers to your questions on how to make a bootable USB on Mac. You can try out the different tools for free, so download it, and see what you think. MacKeeper can do everything from finding malware to updating your apps for you. When the scan is finished, review the results, and click Fix items safely.Select Find & Fix from the menu in MacKeeper.You can do that with MacKeeper’s Find & Fix feature, which will scan your Mac for a variety of different problems. It’s a good idea to keep your Mac optimised when you’re asking to create a bootable USB drive. It’s a handy appliance-even more so if you use a small external flash drive that you can carry in a pocket. You can also use it to reinstall the operating system on a Mac that won’t startup. Such a tool allows you to install any version of macOS on multiple Apple computers easily. Why would you want to create an external boot drive for your Mac?
#Apple macos high sierra create image portable
This image can be used by both Windows and Mac computers that use ISO 9660 and HFS file systems.A bootable macOS (previously, OS X) install disk is a portable device containing all the necessary installation files for a selected version of macOS.
#Apple macos high sierra create image code
For example, I named my ISO file TEST-IMAGE, so the line of code I used is: hdiutil makehybrid -iso -joliet -o TEST-IMAGE.iso TEST-IMAGE.cdr Substitute both instances of with the name of your. ISO and hit enter: hdiutil makehybrid -iso -joliet -o. Then, enter this line of code to transform the. CDR file is on your Mac’s Desktop, open Terminal and type the following and hit the enter key: cd desktop To do this, you’ll use your Mac’s Terminal app.Īssuming your. To share the file with Windows users, you’ll need to convert it into a recognizable format. In its current state, the disk is ready for use on any Mac. Once the process finishes, hit “Done,” and check your Desktop for the. You’ll see a progress bar estimating the time until completion. Depending on how large the disc is, the amount of time that’s necessary varies (Which makes USB drives very effecient). If asked, enter your Mac password and hit OK to begin the disk image process. You should keep the image’s name short so that it’s easily reproduced. Choosing this format ensures the contents of the disk are copied entirely as a. Next, make sure to choose DVD/CD Master as the Image Format. In the popup window, select Desktop as your destination. Now that you’ve selected the source of the disc image, click on File > New > Disk Image from. A USB Drive is also useful if you can't find an empty Your disk will appear in the left column window. This is the device that you will be placing your files on for conversion. iSO image file on your Mac with Disk Utility and a little bit of Terminal magic.Ĭonnect an external drive (or, if you have an older Mac, insert a disc into the CD/DVD drive) to your Mac and launch Disk Utility.