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How to Create Bootable USB Media of Mac Hard Drive with Stellar Drive Clone?

 Modified on: September 6, 2016 |    10491 views

A bootable copy of your Mac is an exact replica of your hard drive, which can be used to startup Mac and access important data in case of data disasters. Stellar Drive Clone software has a built-in feature to create a bootable copy of Mac hard drives. Below are some requirements for the creation of Mac bootable disk image using the Stellar Drive Clone utility:

(1) Registered version of the Stellar Drive Clone software

(2) 8GB of minimum free spaces on the Mac hard drive to save disk image files

(3) An external hard drive to restore disk image using Disk Utility

Once these pre-requisites are met, you can begin creating a bootable Mac media. The steps are as follows:

1) Double click the Stellar Drive Clone software icon to launch on Mac OS X

2) From left pane of the software, click TOOLS

3) In the tools menu, the software shows two options to select from:

  • Bootable Disk Image
  • Minimal System

4) Select Bootable Disk Image option and click Continue

5) A mini window pops up with an important message. Please go through this message once and click Create Image button. Now the software will ask you the location in order to save the disk image of the Mac hard drive. Select destination and click Choose to save image file. Please note that the hard drive should have 8GB of free spaces to store the disk image created by this software.

6) Software begins the creation of bootable disk image at the given location

7) Before ending of the bootable disk creation process, the software will ask you to include necessary applications in bootable media. Use left – right arrows to include and exclude Mac applications. Click Search button to add applications from anywhere on the desktop. Click Finish Install to complete the process.

Note: Creation of bootable disk image of the Apple hard drive is time consuming process. While the bootable DMG file is being created, you can take a tour of special offers running on Mac software. Visit Offer Page.

Process: Restore Disk Image to external hard drive

---- Disk Image file ‘StellarBootImage.DMG’ is created at the assigned location

---- Double click the bootable DMG image to mount on Desktop 

---- Connect an external hard drive and format it with OS Extended Journaled using Disk Utility

---- In Disk Utility (OS X El Capitan), select external hard drive and switch to Edit << Restore.

Under the Restore tab, choose StellarBootImage and click Restore. Now the StellarBootImage file will restore all the OS X files and applications to the external hard drive. Your external hard drive has now become a bootable copy of Mac OS X, which is ready for use with all the data and applications residing on it.


2 User Comments

If you want to create a disk image of macOS on APFS drive, you CAN do this with APple Disk Utility. BUT there is currently only one viable path. I FOUND THE SOLUTION to using Apple Disk Utility to create RELIABLE disk images of APFS drives. It was not easy to figure out. The ONLY path to make a viable re-usable disk image formatted as APFS is:

1. First create a blank image file formatted as APFS and Read/Write (requires pre-determining size of image file).

2. use Restore from to clone to newly created image file

3. convert image file to Compressed format.

ONLY THEN do you have a reliable APFS image, especially w/bootable macOS. I have done this repeatedly and it works fine. (Using Mojave 10.14.4 on 2019 27" i9 iMac w 40GB RAM and 512GB SSD, so no T2, though I doubt that is an issue).

ANY other options/paths, are greyed out, yield "Resource busy" or "image is not APFS format" errors or produces image that is not reliable. Even using Apple Internet Recovery tools/boot was the same.

Apple needs to fix Disk Utility to work straightforward like it used to but with better support for APFS.


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