difference between mac clone and mac disk image

Okay, so now I've got the entire disk image here as a single file here in my Documents folder. You can see it is 100 MB in size even though I am not using all that space. Now I can look under Documents and there is that file called Test.dmg. Even though it is a disk drive on our main disk drive it is treated as a separate one so automatically it is like copying to a USB flash drive or an external drive. Notice it is going to copy them in because it is like this is a second disk drive. Let me open up a second Finder window here and just grab a bunch of files and I'll put it in there. We go back to the Finder window here and we will take a look and see under Devices that Test Disk Image is actually here and it is empty. At this point we're kind of done with using Disk Utility to create it and we want to actually interact with it in the Finder. So let's create this and it will put it out there. It will still look like a 100 megabyte disk but the file itself will be a lot smaller. You can do the rewrite disk image here but you can also do a sparse disk image which will shrink the file size to the minimum it needs. Then you can also select different formats. This is great if you want to create a disk image to put a bunch of files in and then email to somebody and you know it is protected. You can also encrypt it and you can have a password and then this password can be used to protect the files inside there. I would just leave it here for most uses.

You can set a size for it and you can also set a format. This is different than the name down here which you will see when you mount the disk image just call this one Test Disk Image and you will see that name appear later. But you are going to see it just as a regular file and this is the file name. Then you give it a name and save it just like a regular file to a location because a disk image is in fact just a file inside that file instead of having say graphics or word processing document or something like that you have a whole bunch of other files. So to create a new disk image you can use this new image button here at the top or go to File, New, and Create a blank disk image. But of course the best way to do it is just Command space and search for disk utility and run it that way. Now you can find this by going to your Applications folder and then going into Utilities and there is Disk Utility. To create a disk image we're going to use the Disk Utility app. Let's take a look at creating disk images using Disk Utility. Check out Creating Disk Images at YouTube for closed captioning and more options.

Difference between mac clone and mac disk image