How To Make A Dmg Bootable Usb

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  1. How To Make Dmg File Bootable Usb On Mac
  2. How To Make A Bootable Osx Usb Drive On Windows 7
  3. How To Make A Bootable Dmg Usb

If you’re still using a Mac OS X the time will come when your computer won’t boot, or a problem may arise where you can’t take control of the device, and booting from an OS X installation media will be required.

This is why it’s recommended that you make a Mac OS X bootable USB when your Mac is in working conditions. However, if you find yourself on a scenario where your device (iMac, MacBook Pro, Air, Mac Pro or Mini) is not responding and you happen to have a Windows device, then you can still be able to make a USB bootable installation media for your Mac OS X to reinstall the operating system using the Recovery Assistant.

Here is the step by step tutorial to getting started BalenaEtcher to know how you can use Etcher for creating bootable USB flash drives. Creating a bootable USB flash drive, CD or DVD is the maiden step to give new life to your existing or brand new PC with a new operating system. Part 2: How to Burn DMG to USB (Bootable) via DMG Editor on Mac. UUByte DMG Editor is a versatile application that can help you burn converted DMG files to a USB drive. The interface is very simple, and all you need to do is click a few times and the job is done for you.

These instructions will also work for Windows users, who are running Mac OS X on a virtual machine and need to upgrade to the latest version. For instance, to OS X Yosemite.

Things to know before proceeding

Before you dive into this guide, you’ll need a few things:

  • A broken Mac computer with Mac OS X.
  • A trial copy of the TransMac software.
  • One high quality USB flash drive with 16GB of storage.
  • A copy of Apple’s macOS (DMG file).

Now that you have all the necessary ingredients, you’re ready to make a Mac OS X bootable USB using the DMG file of the operating system with the steps below.

How to create Mac OS X bootable USB installation media

Usb

Before you can use TransMac, you may first need to partition your USB flash drive with a GPT partition, as a normal MBR partition may not work. To do this, you’ll need to use the Diskpart command-line utility on Windows.

Setting up GPT partition

Use these steps to set up a USB drive with a GPT partition:

  1. Open Start on Windows 10.

  2. Search for Command Prompt, right-click the top result and select the Run as Administrator option.

  3. Type the following command to open Diskpart and press Enter:

  4. Type the following command to determine the USB flash drive and press Enter:

  5. Type the following command to select the storage and press Enter:

    Quick tip: The select disk 1 command as an example, but you have to replace 1 with the number of the flash drive you want to use.

  6. Type the following commands to delete everything from the USB thumb drive and press Enter:

  7. Type the following command to convert the drive into a GPT partition and press Enter:

  8. Type the following command to select the new partition and press Enter:

After you complete the steps, the USB flash drive from MBR to GPT format, you can use the steps below to create a bootable USB installation media to install Mac OS X.

Creating USB install media

Use these steps to create a bootable media to install Mac OS X:

  1. Download and install a copy of TransMac.

    Quick note: TransMac is a paid software, but it has a 15-day trial solution, that give us more than enough time to move the DMG files to the USB drive from Windows. (If you want to support the developer, you can purchase the full version.)

  2. Insert the USB drive that you’ll use to fix your installation of OS X. (Remember that all the data in the USB will be erased. Make sure you take off any important documents.)

  3. Right-click the TransMac software icon and Run as administrator. (You’ll be prompted to Enter Key or Run, because we’ll be using it once, click the Run option.)

  4. On the left pane, you’ll see all the Windows PC drives listed, right-click the USB drive that you’re intending to use to reinstall Apple’s OS X and select the Restore with Disk Image option.

  5. In the warning dialog box, click the Yes button.

  6. Use the Restore Disk Image to Drive dialog box to browse for the DMG file with the installation files for Mac OS X Yosemite in this case, and click the OK button to create a bootable USB of the operating system.

    Now, you’ll have to wait a long time. No kidding. It could take one or two hours to complete the process depending on your computer and other variables.

Once your bootable USB installation media is ready, remove it and insert it into your Mac, power it on, holding down the Option key, and select the USB you just created to reinstall Mac OS X.

How To Make Dmg File Bootable Usb On Mac

If you’re having issues trying to create a bootable media, you can get a USB flash drive that comes with Mac OSX ready to install.

  • macOS flash drive See at Amazon
  • OS X 10.12 Sierra flash drive See at Amazon
  • macOS Sierra flash drive See at eBay

    • Update September 23, 2019: This guide has been revised to make sure it includes the latest changes.

    Weekly Digest: Windows 10 previews, Surface Laptop 3, tech tipsHow to clone a Windows 10 installation to a new drive using ClonezillaAppleDifficulty level: IntermediateHow-ToOS XWindows

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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.

    How To Make A Bootable Osx Usb Drive On Windows 7

    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.

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    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.

    How To Make A Bootable Dmg Usb

    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!