Please tell me how to backup the system using the above method or other method (time machine or utilities on market or free). I can not understand why this method (I used this method since my first mac!) become unavailable! Select the CD underneath the drive listed on the left and then click New Image in the tool bar at the top.

Click the ‘ Burn ’ button on the dialog menu. This step will start the writing process of the. In versions of macOS older than 10.5 (Leopard), there is no Burn Disk Image option and you should use Disk Utility or Disk Copy to burn the ISO. Disk Utility On the left, right-click on the chosen USB drive and format it with MS-DOS (FAT). Put USB drive into your Mac system and launch Disk Utility. Insert the CD you want to create an ISO image from into your CDROM/DVD drive and then launch Disk Utility (Applications -> Utilities -> Disk Utility). Method 5: Use Disk Utility to Create USB on Mac. I tried to image the container, but the operation failed as atteched snapshots. HOWTO: Create an ISO Image from a CD in Mac OS X. But by the Disk utility, the main High sierra (APFS) disk looks like as follows Īs attached snapshots, I can not image partition (image button is grayed out), but I can select the container. Paste the following command, assuming that you have the macOS Monterey installer downloaded to your Mac’s apps folder, and the USB drive connected to your Mac. As the previous system, I made the external High sierra (disk, USB), and switched to the external system. Select the USB stick device (you may need to enable the option View>Show All Devices) and select Erase from the tool bar (or right-click menu) Set the format to MS-DOS (FAT) and the scheme to GUID Partition Map. Then I use Disk utility and backup the main system using image function (until macOS sierra).īut in case of High sierra, the above way became unavailable. Insert your USB stick and observe the new device added to Disk Utility. When I backup the system, and switch to external macOS. Usually I backuped the system disk using another macOS installed on the external disk or USB stick.

However I have a problem that I can not image the APFS system disk using Disk utilitu image function. Now I installed macOS High Sierra 10.13 GM candidate, and it works OK in my operational environment.

Mac os disk utility create iso