Article ID = 43
Article Title = How To Obtain And Use The macOS Install Disc Image
Article Author(s) = Graham Needham (BH)
Article Created On = 21st July 2011
Article Last Updated = 10th September 2014
Article URL = https://www.macstrategy.com/article.php?43
Article Brief Description:
Instructions for obtaining the OS X install disc image

Obtain the macOS / OS X Disc Image (see instructions above). Go to Macintosh HD Applications Utilities Disk Utility. Click on the 'Burn' button at the top of the Disk Utility window. Navigate to the macOS / OS X disc image ('InstallESD.dmg' file) Select the disc image. Click the 'Burn' button. Insert the blank/unused DVD-R or DVD+R disc.

Disk Images in OS X are a great way to back up, archive, or protect any file or folder on your Mac® OS X. If you want to create a Disk Image on Mac® OS X™, w. Create Disk Image on macOS High Sierra DoYourClone for Mac also can help you create a disk image of any hard drive. Just choose mode “ Create Disk Image ”, then create a disk image of the source hard drive and save the disk image to the destination hard drive. Download: Mac OS Sierra 10.12 ISO and DMG Image. Mac OS High Sierra 10.13 ISO or DMG. Download only the stub installer means web installer is the main reason that only users may be downloading from the app store. The stub installer is mainly little in size. After running the stub installer, the real operating system will begin being introduced. The resulting disk image will be saved as the familiar.dmg format, which has a number of potential uses ranging from creating a drive clone for backup purposes, restoring the image elsewhere as a bootable backup, or even for deploying the same Mac OS X installation on multiple machines.

How To Obtain And Use A macOS Disc Image (for OS X 10.7 or later)

• You made a backup copy of the 'Install macOS / OS X' installer package before installing macOS / OS X - click here
• You are about to purchase, download and install macOS / OS X - click here
• You have purchased and downloaded macOS / OS X but have not installed it yet - click here
• You have already purchased, downloaded and installed macOS / OS X - click here
• You have already obtained the macOS / OS X disc image and want to know what to do with the macOS / OS X disc image

Obtain the macOS / OS X Installer - macOS / OS X Not Purchased Yet

1. Go to Macintosh HD > Applications > App Store.
2. Go to Store menu and Sign In if necessary (using the Apple ID you purchased OS X 10.7 or later with).
3. From the 'Store' menu now select 'Search' and search for 'macOS'.
4. Locate the latest version of macOS / OS X e.g. macOS 11 Big Sur.
5. Click the 'Buy' button
NOTE: If the buy button is not available e.g. it says 'Install', 'Download' or 'Purchased' you have already bought macOS / OS X
6. Purchase and download the macOS / OS X Install installer package to your hard disk (it may take a while as it is 4.3GB+ in size).
7. At the point where the macOS / OS X installer has downloaded it will automatically launch and ask you to continue.
8. Do not click Continue yet.
9. Quit the macOS / OS X installer (yes, quit it).
10. Now go to Obtain The macOS / OS X Disc Image section below

Obtain the macOS / OS X Installer - macOS / OS X Already Purchased

1. Go to Macintosh HD > Applications > App Store.
2. Go to Store menu and Sign In if necessary (using the Apple ID you purchased OS X 10.7 or later with).
3. Alt-click on the Purchases icon. This will show you a list of all software previously purchased. The 'macOS / OS X' item in the list should have an 'Install' or 'Download' button to the right of it.
NOTE: If the button is greyed out e.g. it says 'Installed' or 'Downloaded' go to the macOS / OS X Already Purchased And Installed section below
4. Click the install or download button for macOS / OS X which will download the macOS / OS X Install installer package to your hard disk (it may take a while as it is 4.3GB+ in size).
5. At the point where the macOS / OS X installer has downloaded it will automatically launch and ask you to continue.
6. Do not click Continue yet.
7. Quit the macOS / OS X installer (yes, quit it).
8. Now go to Obtain The macOS / OS X Disc Image section below

Obtain the macOS / OS X Installer - macOS / OS X Already Purchased And Installed

1. Go to Macintosh HD > Applications and check for an 'Install macOS / OS X' item - if it exists go to the Obtain The macOS / OS X Disc Image section below otherwise continue with these instructions.
NOTE: If you have an additional compatible Mac running Mac OS X 10.6.6 or later that does not have the version of macOS / OS X you want already installed on it you could use that to download the installer again otherwise you will need one of the following external storage devices before continuing with these instructions:
• USB, FireWire or Thunderbolt hard disk
• USB stick
• SDXC card (if your Mac supports it e.g. recent MacBook Pro or Mac mini)
NOTE: The external storage device must be at least 8GB in size and erased/empty/formatted as a GUID Partition before use.
2. Restart your computer using the (Internet) Recovery mode
3. When the macOS / OS X Utilities window appears select the Install macOS / OS X option
4. Choose your external storage device as the destination
5. Let the installation start and watch the installation process carefully (it may take a while as it is 4.3GB+ in size)
6. When the Mac automatically restarts there will be a black screen for a moment - at this point unplug/eject/disconnect the external storage device
7. The Mac may stall for moment but then should boot normally to your desktop or login screen
8. Reattach the external storage device
9. There should be a folder on it called 'macOS / OS X Install Data' that contains a disk image file called 'InstallESD.dmg' - if this is missing, then you probably waited too long to unplug the drive. Go back and start this section again
10. Copy the 'InstallESD.dmg' file to your desktop or preferably to another disk/storage device or even burn it to a DVD so that you have a backup of it.
11. Now choose what you want to do with the macOS / OS X disc image

Obtain The macOS / OS X Disc Image

1. Go to Macintosh HD > Applications and locate the 'Install macOS / OS X version name here' installer package (e.g. 'Install macOS High Sierra') or find your backup copy of it.
2. Right/control click on the 'Install macOS / OS X' installer package and select 'Show Package Contents' from the contextual menu.
3. Navigate to Contents > SharedSupport and locate the 'InstallESD.dmg' file.
4. Copy the 'InstallESD.dmg' file to your desktop or preferably to another disk/storage device or even burn it to a DVD so that you have a backup of it.
5. Close all the windows.
6. You can now use the macOS / OS X disc image (InstallESD.dmg) to:
• Create an External Installation Device.
• Create an Emergency Boot Drive for macOS / OS X / Mac OS X you can use it to boot your computer and repair your hard disk and/or reinstall macOS / OS X / Mac OS X.
• Create an Install DVD (see instructions below).

How To Create An Install DVD From The macOS / OS X Disc Image

1. Obtain the macOS / OS X Disc Image (see instructions above).
2. Go to Macintosh HD > Applications > Utilities > Disk Utility.
3. Click on the 'Burn' button at the top of the Disk Utility window.
4. Navigate to the macOS / OS X disc image ('InstallESD.dmg' file)
5. Select the disc image.
6. Click the 'Burn' button.
7. Insert the blank/unused DVD-R or DVD+R disc.
8. Follow the on screen instructions.

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This article is © MacStrategy » a trading name of Burning Helix. As an Amazon Associate, employees of MacStrategy's holding company (Burning Helix sro) may earn from qualifying purchases. Apple, the Apple logo, and Mac are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc.

Macos Sierra Virtual Disk Image

Looking for a way to open an .ISO file on your Mac? ISO files are often used to distribute bootable utilities for DOS, Windows, Linux or other operating systems. In this tutorial we’ll show you 3 easy ways to open and mount ISO file on macOS High Sierra.

Method 1: Open and Mount ISO file on Mac with DiskImageMounter

1. To start, open a Finder window and navigate to the location of your ISO file, then right-click on it and select “Open With” -> “DiskImageMounter (default)“.
2. A new drive will now appear on your desktop. You can double-click it to open the drive and view the contents of your ISO image.
3. When you no longer need to access the mounted drive, just right-click on it and select Eject.

Method 2: Open and Mount ISO file on Mac Using Disk Utility

1. Click the “Finder” icon in the dock. select Applications in the sidebar, then double-click the Utilities folder and then double-click Disk Utility.
2. Once Disk Utility is open, click the File tab on the menu bar and then select Open Disk Image.
3. Next, select any ISO image you want to mount, and click Open.

Macos Sierra Vmware Disk Image.rar

Method 3: Open and Mount ISO file on Mac Using Terminal

1. Open up a Terminal window and you can mount an ISO image by executing the following command. Note down the name of the destination mount point (e.g. /Volumes/PCUnlocker) as we need to use it to unmount the disk.
   hdiutil mount ~/PathToYourISO/filename.iso
2. When you no longer need to work with the ISO, here’s how to unmount it:
   hdiutil unmount /Volumes/mount-point

Macos Sierra 10.12.6 Vmware Disk Image

That’s it!

Macos Sierra Virtual Disk Image Download

Mac Os High Sierra Disk Image