How To Make Boot Drive Macos On High Sierra Dmg

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It is also a container to hold macOS installation image. Install dmg on ipad.

If you are planning to install macOS Catalina, there is one additional set of steps you should follow. You should download a bootable copy of macOS Mojave. This is the only way to downgrade if you decide you're not ready for macOS Catalina.

Sep 23, 2016 Connect the macOS Sierra boot drive to the Mac; Reboot the Mac and immediately hold down the OPTION key; Choose “Install macOS Sierra” from the boot menu options; Once booted up from the installer drive, you can either install macOS Sierra directly as an update, or have access to the traditional utilities menu options including Disk Utility. Sep 27, 2017  How to Create a Bootable USB Installer for macOS High Sierra. Justin Pot @jhpot September 27. The simplest way to create a boot USB drive is to download DiskMaker X and use it to create your drive. Generally, the latest version supports only the latest version of macOS; if you want to install something older than macOS High Sierra. May 18, 2018 Now copy this InstallESD.DMG as you need it in TransMac to Create macOS High Sierra Bootable USB Installer on Windows 10. Ok, so lets continue with TransMac Restore Disk Image to Drive. On this screen, select the InstallESD.DMG file and click OK. Click Yes, when TransMac Gives you the Overwrite warning. Codes For Enabling MacOS High Sierra Installation; Create Virtual Machine For MacOS High Sierra on VirtualBox Step 1. Download and Install VirtualBox on your computer. When you installed it, simply double click and open it. Select New Under the menu and create a New Virtual Machine for MacOS High Sierra 10.12 with any name. Just Remember to select the type, Mac OS X, and the version should be macOS 10.13 High Sierra 64 bit. May 04, 2019  Step 5. Installing macOS high sierra. Before we try to boot the macOS installer we need to make some changes to our BIOS settings. Just to spoof the macOS installer so it thinks that we are booting the installer from a real mac, else we will face a disabled boot screen or a message saying “macOS cannot be installed on this device”. Jun 28, 2019 If you are looking for installing or upgrading to high sierra on a mac I highly recommend you to download the app from the Apple app store because it is the easiest method, but if in some case you are not able to download the app from app store then try downloading the dmg files from the Apple’s servers directly and create a bootable USB from. Jun 20, 2018 Create a Bootable USB High Sierra Installer in Mac OS X 10.13. Create a Bootable USB Drive For MacOS High Sierra easy step by step - Duration: 7:38. Technical Arakan 38,000 views.

Before you start

Before you get started, make sure you have a thumb drive with at least 15GB of storage, or a spare external hard drive (one that you don't use with anything else).

You'll also need to download macOS Mojave from the Mac App Store.

Note: After macOS Mojave has downloaded, it will automatically begin the installation process. Close the installer instead.

Please, Please, Please, backup your Mac before you do anything.

How to format your external drive for Mac

You'll need to start with a clean thumb drive or hard drive in order to get it ready to work as a bootable drive.

  1. Plug the USB end of the drive to a USB port on your Mac.
  2. Click on Finder in your Dock to open a Finder window.

  3. Select Applications from the list on the left side of the window.

  4. Scroll down and double-click on Utilities.

  5. Scroll down and double-click on Disk Utility.

  6. Select your drive under External.

  7. Click on the Erase tab at the top of the window.

  8. Note the name of your external hard drive (probably 'Untitled') because you will need it when you create a bootable drive. If you have more than one external hard drive named 'Untitled,' you will need to rename your hard drive now.
  9. If your Mac is using HFS+, select Mac OS Extended (Journaled) from the format list. If your Mac is using APFS, select APFS from the format list.
  10. If Scheme is available, select GUID Partition Map.
  11. Click Erase.
  12. Click Done when the process is complete.

  13. Close the Disk Utility window.

Your thumb drive or external hard drive is now ready.

How to make your external drive bootable for installing macOS Mojave

Important:You will need to be in your Mac's administrator account in order to run the sudo Terminal command.

  1. Click on Finder in your Dock to open a Finder window.

  2. Select Applications from the list on the left side of the window.

  3. Scroll down and double-click on Utilities.

  4. Scroll down and double click on Terminal.

  5. Recall the name of your formatted external drivewhen entering the following text into Terminal. If it is not named 'Untitled,' you will need to change the command syntax for the pathname where it says: Volumes/Untitled. The name of the drive can't have any spaces and it is case sensitive.

  6. Enter the following text into Terminal (Don't forget to change the name 'Untitled' if your hard drive is named something else):

    sudo /Applications/Install macOS Mojave.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled

  7. Hit the enter/return key.

  8. Enter your administrator account password. This is the password you use to make changes on your Mac or log in. No text will appear in Terminal when you enter the password.
  9. Type Y to confirm that you want to erase the drive and press return.

The process could take a very long time, depending on the drive. When it is done, the Terminal window will report 'Done.'

How to use macOS Mojave as an installer boot drive

Once macOS Mojave is installed on your external drive, you can boot up and install any Mac with the drive plugged into it.

  1. Turn off the Mac you want to install macOS Mojave with the bootable drive.
  2. Connect the external drive to your Mac via the USB port.
  3. Turn on your Mac.
  4. Hold down the Option key when you hear the startup chime.
  5. Select the external drive with macOS Mojave on it from the list of systems to start up your computer.

How To Make Boot Drive Mac Os On High Sierra Dmg Google Drive

The installation process will begin. Follow the steps to install macOS Mojave onto your Mac or partitioned hard drive.

Do you have any questions about how to create a bootable installer drive for macOS Mojave? Let us know in the comments.

Updated September 2019: Updated for macOS Catalina.

macOS Catalina

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These advanced steps are primarily for system administrators and others who are familiar with the command line. 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.

Download macOS

Find the appropriate download link in the upgrade instructions for each macOS version:

  • macOS Catalina, macOS Mojave, and macOS High Sierra download directly to your Applications folder as an app named Install macOS Catalina, Install macOS Mojave, or Install macOS High Sierra. If the installer opens after downloading, quit it without continuing installation.
    To get the required installer, download from a Mac that is using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. Enterprise administrators, please download from Apple, not a locally hosted software-update server.
  • macOS Sierra downloads as a disk image that contains a file named InstallOS.pkg. Open this file and follow the onscreen instructions. It installs an app named Install macOS Sierra into your Applications folder.
  • OS X El Capitan downloads as a disk image that contains a file named InstallMacOSX.pkg. Open this file and follow the onscreen instructions. It installs an app named Install OS X El Capitan into your Applications folder.

Use the 'createinstallmedia' command in Terminal

  1. Connect the USB flash drive or other volume 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.
  2. Open Terminal, which is in the Utilities folder of your Applications folder.
  3. Type or paste one of the following commands in Terminal. These assume that the installer is still in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. If it has a different name, replace MyVolume in these commands with the name of your volume.
    Catalina:*
    Mojave:*

    High Sierra:*
    Sierra:
    El Capitan:
  4. Press Return after typing the command.
  5. When prompted, type your administrator password and press Return again. Terminal doesn't show any characters as you type your password.
  6. When prompted, type Y to confirm that you want to erase the volume, then press Return. Terminal shows the progress as the bootable installer is created.
  7. 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.

* If your Mac is using macOS Sierra or earlier, include the --applicationpath argument, similar to the way this argument is used in the commands for Sierra and El Capitan.

Use the bootable installer

After creating the bootable installer, follow these steps to use it:

  1. Plug the bootable installer into a compatible Mac.
  2. Use Startup Manager or Startup Disk preferences to select the bootable installer as the startup disk, then start up from it. Your Mac will start up to macOS Recovery.
    Learn about selecting a startup disk, including what to do if your Mac doesn't start up from it.
  3. Choose your language, if prompted.
  4. A bootable installer doesn't download macOS from the Internet, but it does require the Internet to get information specific to your Mac model, such as firmware updates. If you need to connect to a Wi-Fi network, use the Wi-Fi menu in the menu bar.
  5. Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions.

Learn more

Google Drive Mac

For more information about the createinstallmedia command and the arguments that you can use with it, make sure that the macOS installer is in your Applications folder, then enter this path in Terminal:

Catalina:

How To Make Boot Drive Macos On High Sierra Dmg Drive

Mojave:

How To Make Boot Drive Mac Os On High Sierra Dmg Torrent

High Sierra:

Sierra:

El Capitan: