How To Create a Bootable USB for macOS! Simple Instructions for macOS Version in 2020

A bootable flash drive with new macOS Catalina is useful when you need to install a system from scratch, or update several machines at once. Now I will tell you how to create such a flash drive in the mac OS itself and in Windows. The manual is suitable for High Sierra, Mojave and Catalina.
The macOS operating system is a more stable system than Windows, but still sometimes, even this macOS needs to be installed from scratch. For example, you want to install new macOS beta, you have replaced your hard drive or want to install a different version, or you have updated to the latest version on top of the old one and now you are facing problems: the Wi-Fi network is unstable, constant problems with the programs — they slow down, crash, and so on. This may or may not be fixed with the next system update. Therefore, if you want macOS to work correctly and stably, you need to install it on a clean disk, completely deleting the old one.

Ok. How To Create a Bootable USB for macOS

Here > you can download last version of new macOS

Step 1: Connect the USB Flash Drive that you’re using for the bootable installer. Make sure that it has at least 12GB of available storage and is formatted as Mac OS Extended.

Step 2: Open Terminal, which is in the Utilities folder of your Applications folder.

Step 3: Type one following command in Terminal. These assume that the installer is still in your Applications folder, and newmacOS is the name of the USB flash drive you’re using. If it has a different name, replace newmacOS in these commands with the name of your volume.

macOS Catalina:

sudo /Applications/Install\ macOS\ --volume /Volumes/newmacOS

macOS Mojave:

sudo /Applications/Install\ macOS\ --volume /Volumes/newmacOS

macOS High Sierra:

sudo /Applications/Install\ macOS\ High\ --volume /Volumes/newmacOS

macOS Sierra:

sudo /Applications/Install macOS --volume /Volumes/newmacOS --applicationpath /Applications/Install macOS --nointeraction

OS X El Capitan:

sudo /Applications/Install OS X El --volume /Volumes/newmacOS --applicationpath /Applications/Install OS X El --nointeraction

Step 4: Press Enter and enter our account password, to start creating a bootable flash drive, press Y on the keyboard, then the copying process will begin

After 10-15 minutes the bootable flash drive from Mac OS will be ready for use. When Terminal says that it’s done, the volume will have the same name as the installer you downloaded, such as Install macOS Catalina. You can now quit Terminal and eject the volume.

In a few minutes, your bootable flash drive will be ready, but remember that the created USB flash drive is intended only for installing the system on Mac computers

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