Connect the USB flash drive or other volume that you're using for the bootable installer.

Use the 'createinstallmedia' command in Terminal Create Mac Bootable Usb From Windows Madwithmac File You will create the bootable installer from this app, not from the disk image or. It installs an app named Install OS X El Capitan into your Applications folder. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. This downloads as a disk image named InstallMacOSX.dmg. Enterprise administrators, please download from Apple, not a locally hosted software-update server. To get the correct installer, download from a Mac that is using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. If the installer opens after downloading, quit it without continuing installation. These download to your Applications folder as an app named Install macOS.

Download: macOS Big Sur, macOS Catalina, macOS Mojave, or macOS High Sierra.

A downloaded installer for macOS Big Sur, Catalina, Mojave, High Sierra, or El Capitan.

A USB flash drive or other secondary volume formatted as Mac OS Extended, with at least 14GB of available storage.

How can I do this? What you need to create a bootable installer

I now need to create a bootable USB drive from the DMG file but I need to be able to do it in Windows, preferring open source or at least free options. I backed up the Lion dmg file when I purchased it via the Mac App Store.

For those curious, it's possible to use a Mac to create a Windows 10 boot drive, but the process is fairly involved and requires familiarity with Terminal, the Mac's command-line tool.Ī Mac machine needs to be reformatted with Lion.

This article looks at three applications that you can use to create a bootable USB drive from a DMG file in Windows.

If the Mac computer was broken or crashed and couln't get into the system, but you only have access to a Windows PC, there's still a way to make a bootable macOS install USB on Windows.

However, if your Mac device is not bootable, you can prepare macOS Mojave bootable USB right from Windows PC as well. The macOS Mojave bootable USB can be prepared on a Mac without the help of third-party tools, just like how Windows bootable USB can be prepared from Command Prompt.

MacOS Mojave bootable USB from Windows 10/8/7 PC.

You don't need a bootable installer to upgrade macOS or reinstall macOS, but it can be useful when you want to install on multiple computers without downloading the installer each time. These advanced steps are primarily for system administrators and others who are familiar with the command line.

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