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. You will find a file started Install, such as Install macOS Majave. 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. Method 1: How to Create Bootable USB Installer for Mac via Commands

Method 3: Create macOS Bootable USB Drive on Windows.

Method 2: Make a macOS Bootable USB by WizDMG.

Method 1: Create a Bootable Installer for Mac via Commands.

Once the file has been downloaded to your PC, you can proceed with one of the bootable disk creation methods shown below. For example, if you want to create a bootable macOS Mojave installer, you will need the DMG file for macOS Mojave. You will first need to download the DMG file for the macOS version you wish to install. 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. 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.

Learning how to create a bootable macOS installation disk can be helpful in a variety of situations.

Create mac os install usb