- Jan 15, 2020 macOS Recovery makes it easy to reinstall the Mac operating system, even if you need to erase your startup disk first. All you need is a connection to the Internet. If a wireless network is available, you can choose it from the Wi-Fi menu in the menu bar. This menu is also available in macOS Recovery.
- Wait for the download to complete and double-click on the 'RecoveryDiskAssistant.dmg' file in the 'Downloads' folder. It will create a file named 'Recovery Disk Assistant.app' into the 'Applications' folder. Select the new drive Connect a USB drive to your device and launch 'Recovery Disk Assistant'.
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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.
A DMG file is Apple's equivalent of an ISO installation file or disk image. It usually contains all the information required to install a program on a Mac computer running Mac OS X or macOS. It is also a container to hold macOS installation image. If you want to create a bootable macOS bootable disk, the first step is to burn DMG to USB or DVD.
However, native support for DMG files is only available on Apple's desktop operating system. For Windows or Linux, you will need to use different methods. For example, if you want to burn a DMG file to USB on a Mac, it's as easy as using the built-in Disk Utility tool. On Linux and Windows, you obviously have to use other ways. This article explains how to burn a DMG file to a USB flash drive on a Mac, a Windows computer and a machine running Linux.
Method 1: How to Burn DMG to USB on macOS or Mac OS X
If you have a Mac, then Disk Utility will help you create your bootable USB drive. Since this is a native application, no downloads are required. The built-in tool will be able to directly burn the DMG file to a disk or drive. You simply have to follow the process as described below:
Step 1: Open Disk Utility by going to Applications >> Utilities and clicking on the tool.
Step 2: You should be able to see all the drive names in the left-side panel. Now open a Finder window and drag your DMG file into Disk Utility. Drop it in the blank area below the drive names on the left panel.
Step 3: You can now insert your USB drive and wait for it to appear in the drives list. Next, click on your mounted DMG file on the left panel and click on ‘Burn' in the top toolbar. When you see the ‘Burn Disk In:' message, click on the USB drive.
The DMG file will now be burned to the USB drive, and you can use it to do program installations. Disk Utility has a good burn success rate, so hopefully you won't have to repeat the process to get it right.
Method 2: How to Burn DMG to USB in Windows 10 (Bootable)
Since Windows doesn't natively support DMG files, you will need to first download and install a utility that can handle such disk images. The best software for the job is WizDMG, a Windows-based desktop solution for authoring Apple's disk image files in a non-Mac environment.
WizDMG requires no technical expertise to use. The clean interface only shows the user the necessary functions, and all the heavy lifting is done at the back end. One of the unique features of this increasingly popular software is the amount of beta testing it has gone through. Extensive and gruelling tests with different storage media brands and Windows versions have made this one of the most reliable DMG utilities for Windows. With one of the industry's highest burn success rates, it's no wonder that WizDMG is emerging as the leader in its class.
Step 1 Install WizDMG
Download WizDMG to your Windows PC and install the program by following the setup instructions in the wizard.
Step 2 Load DMG File into WizDMG
After launching the program, you'll see various options on the home page. Click on 'Burn' to kick off the process. Now click on 'Load DMG' to add the file to the program, and insert a USB flash drive.
Step 3 Start Burning DMG to USB
The drive will be automatically detected by the software, so all that's left is to click on 'Burn' and wait for your drive to get ready.
The USB drive will contain the DMG image you selected, and this can now be a portable boot drive to install that particular program on any Mac computer.
Method 3: How to Burn a DMG File to USB in Linux
The process of burning a DMG to USB in Linux is a little more complicated since it requires converting the file to an ISO before burning it to a drive. It also requires command line executions, but if you own a Linux machine you may already be familiar with command line work. Please note that in order for the USB drive to be bootable, the original DMG must have boot information. In here, we take Ubuntu Linux as an example.
Step 1: Download and install dmg2img by using the following command: sudo apt-get install dmg2img
Step 2: Convert the DMG to IMG with the following command: dmg2img sample.dmg
Step 3: Change the filename of the resulting .img file to .iso. Remember, this is still an IMG file, but it will have a .iso extension. Use the command below to do this: mv sample.img sample.iso
Step 4: Insert the USB drive, but make sure it is not mounted. If it is, you can unmount it with the following command: sudo umount /media/
Make sure you know the file path to the mounted USB drive. Although external drives are generally mounted in /media in Linux, it could be in a different location. To check, you can use this command: lsblk
This command reads the sysfs file system and shows you information about block devices. Your drive can usually be identified by the size, but make sure you use the correct disk name, not the partitions within the disk.
Step 5: You can now burn the DMG to the USB drive with the following command:
sudo dd bs=4M if=sample.iso of=/dev/sdX %% sync
If the original DMG file was bootable, then this .img version on your USB will also be bootable. The process looks a bit complicated, but it should work as long as you follow the steps described above.
The Bottom Line:
As we can see, burning DMG to USB on Mac is the easiest solution as you don't need to install any other tools or type command to complete the task, which could be annoying for some users. How about the Mac was broken and you want to create a bootable macOS disk to repair the computer? That depends what kind of computer you get at hand. Just follow the steps listed above according to the computer model.
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Mar 09,2020 • Filed to: Solve Mac Problems • Proven solutions
Part 1. Overview of Mac Recovery USB
If you are an Apple user, you would probably know that when you install OS X (Lion or higher), it will automatically create a hidden recovery volume on your startup drive. So when you encounter an emergency, you will be able to recover your Mac easily with 'Disk Utility' to repair a damaged hard drive, find information about your device's problem online, restore your device to its previous settings or reinstall OS X. To further enhance your user experience, Apple lets you have a physical copy of OS X Recovery USB drive created with Disk Assistant.
It is a great option to have because if your drive is brutally damaged, there is a possibility of not being able to use the recovery volume and you don't necessarily have an internet connection all the time. Therefore, having a physical copy would be like an insurance for your devices. Read on our side-by-step guide to help you create OS X Recovery USB drive with Disk Assistant on a USB stick.
In order to create an OS X Recovery USB drive, you will need a few things:
- A working recovery volume on your operating system startup drive - this is the source where you will create a copy of the volume.
- A USB drive with at least 1GB storage space.
If you do not have a working recovery volume on your device, you will not be able to follow through with these instructions. And remember that these instructions will not work if you have an older device model that is currently running on a newer operating system.
Part 2. How to Create a Mac Recovery USB
When you clone the recovery volume on any partitions listed in 'Disk Utility', any data in the destination volume will be deleted. Therefore, it is a good idea to prepare the USB drive before you create OS X Recovery drive with Disk Assistant, especially a USB drive with a large amount of storage space. Create partitions in the new destination so that you will be able to have a dedicated section for the recovery volume.
Once you have prepped the new destination,if needed, follow these steps to get you on the way of owning a physical OS X Recovery disk created with Disk Assistant.
Get the Disk Assistant, if needed
Select the new drive
Eject and keep the USB safe
Where is Recovery Disk Assistant? Go to Applications > Utilities to see if the 'Recovery Disk Assistant' is not available in the folder. If it is not, download it from Apple's Support website. Wait for the download to complete and double-click on the 'RecoveryDiskAssistant.dmg' file in the 'Downloads' folder. It will create a file named 'Recovery Disk Assistant.app' into the 'Applications' folder.
Connect a USB drive to your device and launch 'Recovery Disk Assistant'. You will need to agree to the terms and conditions and wait until the wizard detects the external drives. Select the new recovery disk i.e. the USB drive you connected to your computer and click on the 'Continue' button.
It should not take long for the system to create a clone of the original recovery volume. It will prompt you when it is done so that you can click the 'Quit' button to eject the USB drive. Make sure you keep the USB drive somewhere safe and easily accessible.
Since the introduction of OS X Lion, Apple did away with recovery disks, but we know that while this is super convenient for many, having an actual recovery disk can be beneficial at times. This is the simplest and fastest solution to have available to you anytime, anywhere.
Part 3. How to Recover Data on Mac OS X
What if the Mac recovery USB works normally but data gets lost? Read on and get a feasible solution for Mac OS data recovery.
Recoverit - The Free Software for Mac OS Recovery
To get data back from your Mac OS X, sometimes you need a trustworthy and professional Mac recovery program to help you, for example, Recoverit Free Mac Data Recovery. This is a piece of mighty data recovery software to help you restore Mac in all data loss scenarios, such as crashed Mac, unbootable Mac, emptied Mac trash, formatted USB flash drive, unintentional deletion of important files, and many more.
With a 96% recovery rate, you can be reassured since it is able to use advanced scan and search technology to help you recover files without much effort and any hassle. Why is it considered safe and secure? It performas the read-only mode and keeps your data private by yourself. Moreover, before you have to purchase it for Mac OS recovery, you can download the free trial to recover limited files for free, regardless of the device or file format.
Restore Macos From Dmg Image On Usb Drive
Video Tutorial: How to Recover Data on Windows/Mac
Here, we offer a video tuturial to show you how to use Recoverit Free Data Recovery to recover lost, deleted or formatted data back for free.
3 Steps to Recover Information on Mac
Free download and install the free Mac OS recovery software. Follow the next steps to recover information previously stored on Mac.
Restore Macos From Dmg Image On Usb Drive
Restore Macos From Dmg Image On Usb Computer
Select the recovery disk
Scan the Mac recovery disk
Preview and recover information
To recover information on Mac, you need to first select a hard disk that stored your lost data before. Then click 'Start' to begin the Mac OS recovery process.
A thorough scan is launched on the selected Mac hard drive or external device for Mac files recovery. If the scanning location would be an external device, please connect it to your Mac in advance.
Finally, you can preview the files selected from the results. Choose the files you want to recover and click 'Recover' to get them back. After Mac OS recovery, please do not save the files to the same place.
So far, you should have known how to create a Mac recovery USB, and also learn how to perform Mac OS recovery for your lost data. After it, we always encourage each of you to keep a habit of Mac file backup. It can help you guard your important data much better.
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