Bootable Yosemite Usb From Dmg

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To create a bootable USB drive from a DMG file on Windows, you will need to have the right utility. That's because DMG is not native on Windows. It is the Mac equivalent of an ISO file that has been in use since Apple transitioned from the IMG format with Mac OS X. A DMG file, like ISO, can be used to install macOS operating system or Mac apps.

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About a month ago, we talked about creating a bootable USB of macOS on a Mac with the help of a free app called DiskMaker X. The app is very easy-to-use and is updated to support the newest version of macOS.

UPDATE: If you’re looking to prepare macOS Sierra or Mojave bootable USB, please refer to our new how to create macOS Sierra bootable USB from Windows guide for step-by-step directions.

Even though it’s always a good idea to prepare macOS bootable USB on a computer running macOS only, at times you might come across situations where you have no options but prepare the bootable media of macOS on a Windows PC. Take, for instance, your Mac machine is unbootable and you’re unable to fix the issue or re-install the OS using the Recovery Assistant. Or maybe, the Recovery Assistant isn’t appearing when you hold down the Option key.

Mac users who don’t have access to a bootable Mac machine to prepare the bootable USB of macOS can take the help of a computer running Windows operating system for the job. The only thing is that you must have the DMG file of macOS.

If you have the DMG file of macOS and a USB flash drive of size greater than 16 GB, it’s easy to prepare the Mac OS X bootable USB on a Windows PC. Simply follow the given below instructions to prepare your bootable USB of macOS on a PC.

Create macOS Bootable USB on Windows 10

NOTE: The guide was originally written to prepare Yosemite bootable USB but the guide is compatible with the latest macOS Mojave as well.

Step 1: The first step is to download TransMac software and install the same on a PC running Windows operating system. Even though TransMac is a paid software, the 15-day trial copy is good enough to prepare the bootable USB of Mac on your PC.

Step 2: Stick in the USB drive that you want to boot and install macOS from and backup all data from it, if any. The drive will be erased completely during the process of making a bootable USB.

Step 3: Launch TransMac software with admin rights by right-clicking on TransMac icon on the desktop and then clicking Run as administrator. Upon launching the TransMac software, the Trial reminder dialog will appear. Simply click Run button to continue using the software.

Step 4: Once TransMac is launched, in the left pane, right-click on the USB drive that you would like to make as bootable, right-click on the same, and then click Restore with Disk Image option.

Click the Yes button when you see the warning message on your screen that the drive will be erased.

Step 5: Next, Restore Disk Image to Drive dialog will appear on the screen. Here, click the “…” button under Disk Image to restore to browse to the DMG file of macOS that you want to install using USB and open the same.

Finally, click OK button to begin preparing the bootable USB of macOS on your Windows PC.

Step 6: The TransMac tool, in our test, took a little over 90 minutes to prepare the bootable USB.

Once done, Restore Complete message will pop up on the screen. Close TransMac and safely remove the USB.

Step 7: Finally, connect the bootable USB to your Mac, turn on your Mac, hold down the Option key, and then select the USB drive to begin installing macOS. Good luck!

FonePaw - Solution - Upgrade - Create A Bootable USB Drive for Mac OS

To install macOS or OS X from USB, you need to create a bootable install USB drive for Mac operating system. This tutorial will introduce you three ways to create bootable USB drive for macOS High Sierra, macOS Sierra, Mac OS X El Capitan, Yosemite, Mavericks and more.

Use 'createinstallmedia' Command in Terminal

Make Bootable Yosemite Usb From Dmg

The most recommendable way to create a bootable install USB drive for Mac OS is using 'createinstallmedia' Command with Terminal application.

Step 1: Download macOS or OS X

The first thing to do is to download the Mac operating system that you need. To install the latest Mac OS, for example, macOS High Sierra, you can search and download the installer from App Store.

To download the older Mac OS X version, you can go to App Store > Purchases to download the Mac OS X El Capitan, Yosemite, Mavericks that has been previously downloaded.

However, Apple has decided that macOS Sierra and later will no longer be listed in Mac App Store's Purchased. To download the installer of macOS Sierra, go to Apple Support.

Note: After downloading the Mac OS installer, do not install the OS but quit the installer.

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Step 2 Get A USB Drive with Sufficient Storage

Dmg To Bootable Iso

You should have a USB drive with at least 8 GB of storage and insert the USB drive into your Mac. If you need to create a bootable USB drive of macOS High Sierra, 16 GB USB flash drive is suggested. In fact, USB drives with larger storage, like 32 GB to 64 GB, tend to show better performance.

IMPORTANT: The contents of the drive will be erased after creating a bootable installer drive. Therefore, make sure there is nothing important on your flash drive before you continue with the following steps.

Step 3 Check the Name of Your Flash Drive

Bootable Yosemite Usb From Dmg Computer

The following command is to create a bootable copy of Mac OS installer on a USB drive named FlashInstaller. If your USB drive has a different name, replace FlashInstaller in the command with the name of your USB drive. If you don't want to modify the command, change the name of your flash drive into FlashInstaller.

Step 4 Create A Bootable USB Drive of macOS/OS X

Launch Terminal enter the following command according to the version of Mac operating system that you are dealing with.

macOS High Sierra Installer

Bootable Yosemite Usb From Dmg Windows 7

sudo /Applications/Install macOS High Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/FlashInstaller --applicationpath /Applications/Install macOS High Sierra.app --nointeraction

macOS Sierra Installer

Wise cleaner for mac. sudo /Applications/Install macOS Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/FlashInstaller --applicationpath /Applications/Install macOS Sierra.app --nointeraction

OS X El Capitan Installer

No toolbars, adware or malware. Download a website mac. 100% FREE and Safe. Great integration with Safari, Firefox, Opera and Chrome.

sudo /Applications/Install OS X El Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/FlashInstaller --applicationpath /Applications/Install OS X El Capitan.app –nointeraction

OS X Yosemite Installer

Bootable Yosemite Usb From Dmg Windows 10

sudo /Applications/Install OS X Yosemite.app/Contents/Resources/createinstallmedia --volume /Volumes/FlashInstaller --applicationpath /Applications/Install OS X Yosemite.app –nointeraction

OS X Mavericks Installer

sudo /Applications/Install OS X Mavericks.app/Contents/Resources/createinstallmedia --volume /Volumes/FlashInstaller --applicationpath /Applications/Install OS X Mavericks.app –nointeraction

Tip: If you didn't download the installer from Mac App Store, you must modify the file path after 'applicationpath'.

After pasting the command on the Terminal, hit Enter key. You'll be asked to enter your Mac's password. Enter the password and hit Enter.

Then you need to check the name and path of your USB drive. If it is correct, press 'y' then hit 'Enter'. The Mac will begin to create a bootable install drive for macOS High Sierra, macOS Sierra, Mac OS X El Capitan/Yosemite/Mavericks. When it is done, Terminal will shows 'Done'.

To install macOS or OS X from the USB flash drive, check how to clean install Mac OS from USB.

Make A Bootable Installer for macOS via DiskMaker X or Install Disk Creator

If you think it is too much trouble to use Terminal to make a bootable installer on a USB drive, you can use tools like DiskMaker X, Install Disk Creator. Both the tools can make an install drive for macOS Sierra, OS X El Capitan, OS X Yosemite and more.

DiskMaker X: When you launch the application, it will try to find the downloaded macOS or OS X installers program on your Mac. And you just need to follow its on-screen instructions to create a bootable USB drive by clicking a few buttons.

Install Disk Creator: Once you run the application, select a USB drive, choose a Mac OS installer, and click Create Installer to begin to create an install USB drive.

Disk Utility to Create a Bootable macOS/OS X Installer

Before using createinstallmedia command, people used to use Disk Utility to create a bootable installer drive manually. But the process is much more complicated than the Terminal method. So Apple also suggests you make a bootable install drive via Terminal.

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Just in case that you don't want to use Terminal, you may follow these steps to build a USB drive for Mac OS X or macOS.

  • Mount the Mac OS installer to get .DS_Store, BaseSystem.chunklist, and BaseSystem.dmg. Files from InstallESD.dmg file.

  • Use Disk Utility's Restore feature to create a copy of the OS Install ESD image.

  • Modify the copy of the OS Install ESD image to make it boot successfully.

Do you have other question about making a bootable USB drive for macOS or Mac OS X? Leave your comment below.

Create Bootable Usb Yosemite

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