Download and Create macOS Big Sur 11.7.10 DMG [Full Guide]

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A macOS Big Sur DMG file Is a disk image used to distribute software and data on macOS. If you need to back up your macOS or create a bootable USB for macOS Big Sur, you need to prepare a macOS Big Sur DMG file.

Here, you’ll find direct download links for macOS Big Sur DMG offline installers, as well as detailed steps for creating a macOS Big Sur DMG file yourself. Let's get started.

Before You Start

A macOS Big Sur DMG file is more than 10 GB. To ensure that you can successfully download and create one, first check if your Mac has enough storage space by clicking the Apple menu > System Settings > General > Storage (or Apple menu > About This Mac > Storage on macOS Monterey or earlier).

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• Free up Mac space in one click.
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[Direct Links] Download macOS Big Sur DMG Files for Free

Creating a macOS DMG file yourself can be time-consuming. Thankfully, there are resources available that can be downloaded directly. Here are some tested download links for macOS Big Sur DMG files.

• macOS Big Sur 11.7.7 DMG by techrechard.com (11.57 GB)
• macOS Big Sur 11.7.5 DMG by techrechard.com (11.57 GB)
• macOS Big Sur 11.7.1 DMG by techrechard.com (11.57 GB)
• macOS Big Sur 11.6.7 DMG by techrechard.com (11.57 GB)
• macOS Big Sur 11 DMG from archive.org (11.6 GB)
• macOS Big Sur 11 DMG from archive.org (12.6 GB)

How to Create a macOS Big Sur 11.7.10 DMG File

The final version of macOS Big Sur is 11.7.10. If you don't find a direct DMG download link, follow the steps below to create one yourself.

Step #1. Download the macOS Big Sur 11.7.10 Full Installer

1. Check if your Mac is compatible with macOS Big Sur.

   • MacBook (2015 or later)
   • MacBook Air (2013 or later)
   • MacBook Pro (Late 2013 or later)
   • Mac mini (2014 or later)
   • iMac (2014 or later)
   • iMac Pro (2017 or later)
   • Mac Pro (2013 or later)

2. If your Mac is on the list, click here to download the macOS Big Sur full installer with the App Store.

3. If not, click the download link below to extract the macOS Big Sur installer from the InstallAssistant.pkg file.

   macOS Big Sur 11.7.10(11.6 GB)

Related Article: Download macOS Big Sur Full Installer with/without App Store

Step #2. Create the macOS Big Sur 11.7.10 DMG File

Once you have the macOS Big Sur full installer downloaded to your Applications folder, move on to learn how to convert it to a DMG file using Disk Utility or Terminal.

Via Disk Utility

1. Create a new folder on your desktop, then rename it "Big Sur".
2. Open Finder > Applications, locate the Install macOS Big Sur app, and copy it.

   

3. Paste the copied file to the Big Sur folder you created.

   

4. Open Disk Utility via Spotlight or Finder > Utilities.
5. Click the File menu in Disk Utility and select New Image > Image from Folder.

   

6. Select the Big Sur folder on your desktop, then click the Choose button.

   

7. Set a name for your DMG file, encrypt it if you want, then click the Save button.

   

8. Once complete, you will find the macOS Big Sur DMG file on your desktop.

Via Terminal

1. Open Terminal via Spotlight or Finder > Utilities.

2. Execute the following command in Terminal to create a blank disk image.

   hdiutil create -o /tmp/MacOSBigSur -size 15000m -volname MacOSBigSur -layout SPUD -fs HFS+J

3. Run the command below in Terminal to mount the created disk image to your desktop.

   hdiutil attach /tmp/MacOSBigSur.dmg -noverify -mountpoint /Volumes/MacOSBigSur

4. Continue to run the following command in the Terminal to copy the Install macOS Big Sur app to the mounted disk image.

   sudo /Applications/Install\ macOS\ Sonoma.app/Contents/Resources/createinstallmedia --volume /Volumes/Sonoma –nointeraction

5. When asked, enter your administrator password.
6. Wait for the erasing and copying process to complete. When you see the message "Install media now available at "/Volumes/Install macOS Big Sur", it means the macOS Big Sur DMG file has been created successfully.

7. Unmount your macOS Big Sur disk.

   hdiutil detach /Volumes/Install\ macOS\ Big\ Sur

8. Move the macOS Big Sur DMG file to your desktop (Optional).

   mv /tmp/MacOSBigSur.dmg ~/Desktop/

Conclusion

Hopefully, you have found the download link for the desired macOS Big Sur DMG file. If not, download the macOS Big Sur full installer according to the above steps, and use Disk Utility or Terminal to create one.

It's worth mentioning that whether you’re downloading or creating macOS Big Sur DMG files, having enough storage space on your Mac is crucial. BuhoCleaner can help you free up space with just one click—don’t forget to give it a try.