This article will show you how to do both of those things and what you should do before you start. Maybe you want to keep your photo library on your computer but want to make sure you have a backup somewhere. So, moving them off of your Mac’s hard drive will free up your storage for other things. First, photographs and videos can take up a lot of space. There are a ton of great reasons why you’d want to transfer your pictures over to an external hard drive. With Gemini 2, you can choose which folders to scan or select your entire hard drive. Note: The command given below could have been used in place of the Disk Utility application.But here’s a tip: download Gemini 2 to help you quickly scan for duplicates and get rid of them. In this case, you may be prompted for your password. The format should be compressed.Ĭlick on the Save button to create the image. In the popup shown below, the location for the image file was changed to the Documents folder. In the popup, highlight the Macintosh HD volume, as shown below. The volume must be mounted in order to image. The second alternative would be to image the root folder of the APFS volume. Hdiutil create -srcdevice /dev/disk2 ~/Documents/Macintosh\ HD Note: The commands given below could have been used in place of the Disk Utility application. Also, the format was changed to compressed.Ĭlick on the Save button to create the image. (The actual file name will be Macintosh HD.dmg.) The location for the image file was changed to the Documents folder. In the popup shown below, the file name for the image was changed to Macintosh HD. The container will not be shown by default in the UI the Show All Devices option in the View menu must first be selected, as shown below.Īfter highlighting this volumes's APFS container, this container was selected to image from the menu bar, as shown below. The next step is to image the volume's AFPS container. The image below shows the Macintosh HD volume as unmounted. With the Macintosh HD volume highlighted as shown below, click on the Unmount button. In the image shown below, Macintosh HD is a APFS volume. All volumes in the container must be unmounted in order to image. The first alternative would be to image the APFS container of the APFS volume. Your closest two alternatives are as follows.
You can not create a disk image of a APFS volume.
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