A little later, the first beta version of macOS High Sierra was released, and today we will tell you how to create a bootable USB disk for installing this operating system on your Mac. Which, according to Cupertino, thanks to new technologies makes Mac computers more reliable, functional and faster. You may wonder which is better: burn a DVD or create an installation flash drive? I think that the latter option is more acceptable, and owners and new Mac minis do not have to choose at all 🙂 That's all! Now, when this becomes necessary, it will be enough to insert a USB flash drive into the USB port of your computer and after turning it on, press and hold the Option (Alt) key to select the boot partition. If everything is correctly indicated, then feel free to click Reestablish and you can go for a walk:
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In field Source drag and drop the image icon called Mac OS X Install ESD, and in the field Appointment - our just formatted flash drive.Ĭheck several times that you have not mixed up the fields, and also did not select the desired USB flash drive as the destination. To do this, select the flash drive in the side menu again and click on the tab Reestablish. There is just a little bit left - to restore our mounted image InstallESD.dmg to a USB flash drive. The formatting operation will take some time (depending on the size of the flash drive). In field Format select the file system type "Mac OS Extended (journal)", in the field Name enter something conscious and click on the button Erase.
Now in the sidebar, select our flash drive, and on the right - the tab Erase. It's time to insert the USB flash drive into the computer and run the Disk Utility, which is located in the Programs\u003e Utilities folder.
Otherwise, double-click on this file with the left mouse button and wait until the mounted image called Mac OS X Install ESD appears on the screen: If you want to create a bootable DVD, just take any application that can write DMG-images, and use it to write InstallESD.dmg to disk (just copy it at least to the desktop first). We are interested in the first file of 3.74 GB in size. In the window that opens, you should travel through the internal directory structure and go to the SharedSupport folder.
YOSEMITE DMG TO USB DOWNLOAD
We go to the directory with the installed programs, we find the Mac OS X Lion.app Installation application there (if it is not there, then you will have to download it again) and select the option “Show package contents” in the context menu. Also, be sure to copy all the important information (if any) from the flash drive you have selected. To implement this plan, we will need a blank DVD or USB flash drive loaded from the Mac App Store Lion, which exceeds 4 GB, and also 30 minutes of free time. Plus, you don’t have to spend least 69 $ on, which will go on sale only in August. Despite the fact that Apple has provided the ability to install the system from a hidden partition on your hard drive, do not neglect the ability to burn the installation image to a DVD-ROM or USB flash drive and feel protected from any unforeseen situations.
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