There are times when you may not want to use the App Store or the recovery mode to install macOS 10.13 High Sierra on your Mac. So Apple gives you the option of creating a bootable USB drive. You can use it anytime and anywhere to quickly get the operating system running on any compatible Mac. An Internet connection is not even required as everything you need is already on the drive.
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Creating a bootable macOS 10.13 High Sierra USB drive is very easy. All you need is a Mac, as the tools provided for the process are only available on OS X and macOS, and a USB drive with a capacity of 8GB or more. I will also explain how to use a dedicated third-party tool, in case you decide that this option suits you better.
But first you have to download the setup file from App Store. Use this link to take you right to its landing page, or search for it manually in the App Store app. After the download is complete, Install macOS High Sierra will be available in your Applications folder. A setup wizard should have appeared by now -- you can close it.
Also, you should backup the contents of the USB drive that you are using for the process, as everything that is stored on it will be removed. And, of course, make sure that you read the instructions carefully before starting.
- Feb 29, 2016 Today I am showing how to make a boot able USB drive for Mac Using a.dmg file, 8gb usb drive, and the Disk Utility that comes with Mac OS X. I hope this helps some one and thanks so.
- Mar 25, 2017 I think it is just a user interface bug because when I close Disk Utility and re-open it, the graph then only shows the 120.88GB macOS (in blue). Install macOS Sierra. Back at the “macOS Utilities” window, do the following to begin the macOS Sierra installation process: Click on the “Install macOS” option and click the “Continue.
Nov 14, 2019 Launch Disk Utility, if it's not already open. Click the flash drive device (not the volume name) in the Disk Utility window. Click the Restore tab. Drag the InstallESD.dmg from the device list to the Source field. Drag the Mac OS X Install ESD volume name from the device list to the Destination field. Make sure the Erase Destination box is. Nov 29, 2017 Download and install older versions of OS X on a Mac. Locate InstallESD.dmg disk image file — this is the file you need to reinstall Lion OS X. The same steps.
Apple's Way, All the Way
Apple offers a dedicated tool in OS X and macOS specifically for the purpose of creating a bootable USB drive. Unlike most tools that ship with the OS, it is not accessible directly from Launchpad. However, it can be accessed through Terminal, which you will have to open for this part of the process.
Here is what you need to do:
- Connect the USB drive to your Mac
- Using Disk Utility (it is typically found in the Other folder, under Launchpad), format the USB drive as Mac OS Extended (Journaled), using the GUID Partition Mac scheme, and name it macOSHighSierra. This can be done from the Erase tab within the app; make sure that there are no multiple partitions (turn to the Partition tab to verify and correct this)
- Open Terminal (it is found in the same folder as the Disk Utility app)
- Use (paste) the following command: sudo /Applications/Install macOS High Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/macOSHighSierra --applicationpath /Applications/Install macOS High Sierra.app --nointeraction
- Type in your user password, when required, to start the process
Based on my experience, this is the best method of creating a bootable macOS 10.13 High Sierra USB drive. It delivers consistent results every time, and does not cause any issues.
Because it is barebones, the tool does not provide any indication as to how much time is left until the process completes. It usually takes around half an hour in my case, but this depends on the speed of the USB drive -- the faster it is the sooner this step is over.
The User-Friendly Tool
DiskMaker X (currently at version 7) is the more user-friendly tool for the job. It automates the process of creating a bootable macOS 10.13 High Sierra USB drive, requiring little input from you. And the results are virtually the same with the aforementioned method.
If you wish to use DiskMaker X to create the bootable macOS 10.13 High Sierra USB drive, here is what you need to do:
- Connect the USB drive to your Mac
- Open DiskMaker X and Select Use this copy to use the Install macOS High Sierra app from the Applications folder (Select Use another copy.. if the setup file is in another folder)
- Select An 8 GB USB thumb drive. (Alternatively, select Another kind of disk if you want to use something else)
- If requested, from the given list, select the USB drive you are using for the process, and then select Choose this disk
- Select Erase then create the disk
- Select Continue
- Type in your user password when requested
Unlike the official tool baked in OS X and macOS, DiskMaker X also lets you know how long the process takes. Like I mentioned before, this depends largely on the speed of the USB drive that you have, so, ideally, you should use the fastest one available, in case time is of the essence.
Now that you have a bootable macOS 10.13 High Sierra USB drive, you should know how to install the operating system on your Mac.
Installesd Dmg Download
What you need to do is restart your Mac, and, right after that, press the Option key, and choose to boot from this USB drive. Afterwards, you can use the step-by-step setup as you normally would to install and setup macOS High Sierra.