If you wish to make a bootable disk (not image) then do this:
Clone using Restore Option of Disk Utility
1. Open Disk Utility in the Utilities folder.
2. Select the destination volume from the left side list.
3. Click on the Restore tab in the DU main window.
4. Check the box to Erase the Destination.
5. Select the destination volume from the left side list and drag
it to the Destination entry field.
6. Select the source volume from the left side list and drag it to
the Source entry field.
7. Double-check you got it right, then click on the Restore button.
Destination means the external backup drive. Source means the internal startup drive.
This will clone the Source volume to the Destination which must be large enough to hold everything on the Source.
You did not manage to complete your disc image, so none was created.
You did not apparently understand that to image your hard drive onto your hard drive would require free space greater than the total space taken up by all the data on the drive.
Never try to make a bootable disc image like that. Firstly, it requires an enormous amount of space; Secondly, it would not have been bootable. You cannot boot from a disc image file.
You can make a bootable clone as I outlined early. Or, you can install a basic OS X system onto a properly prepared USB drive volume or onto a USB flash drive. You can also create a bootable USB flash drive OS X installer.
Kappy, I want to make a bootable disk (not image) as per your instructions, stated above.
"Clone using Restore Option of Disk Utility"
The Destination Disk is my external drive mac companion. That means I have to transfer all data that I have stored on the mac companion to another disk, right? Then after the destination disk (mac companion) is empty of all prior data storage; I should "Erase the Destination," right?
1. All the data on the Destination Drive has been copied to another drive. Do I need to move the data on the Destination Drive I've copied, and move it to the trash and choose "Secure Empty Trash?"
3. I've enclosed a screen shot of one choice in the Utility Folder: Erase.
4. By choosing "Erase," will it "really erase all data totally," so that it results in the same thing as in "zero all data?," and leaves the Destination Drive as "clean and pristine" as when it left the factory?