mac disk utility restore failure could not validate source

What Hasn’t Changed in the Disk Utility Restore Function In this example, the destination volume is formatted with APFS.) (When you select a destination volume from the Disk Utility sidebar, you can verify the file system in use on the selected volume by checking the information pane. In this guide, we’re going to look at how Disk Utility’s Restore feature has changed in macOS High Sierra specifically, the new support for APFS containers and volumes, and how they bring new capabilities as well as limitations to how you restore data from one storage device to another. We’ve already covered the basics of using the Restore feature for cloning in the Rocket Yard article: Tech Tip: How to Use the Restore Feature of Disk Utility to Clone a Drive. The Restore feature can also be used to copy disk images to a target volume, restore an image of your startup volume, or simply copy the content of one volume to another. But if this is your primary reason for using the Restore function, I recommend the use of dedicated cloning apps, such as Carbon Copy Cloner or SuperDuper, that have a great deal more features that are highly serviceable in the cloning process. In this respect, it’s similar to the process of cloning a volume, and indeed, the Restore function can be used to create bootable clones. I insert a brand new DVD-R.The drive starts to do something and notifies meĪnd then immediately ejects the disk again and prompts me for the a disc.Disk Utility’s Restore function can be used to copy the content from one volume to another. So I went into disk utility, chose the Windows 7 ISO, and chose burn. Since this also didn't work, I then tried to burn the image on a DVD. When the ISO-image is mounted: 'RESTORE FAILURE Could not validate source - error 254'Īfter repeating this a dozen times, I tried solve the problem from the Terminal as suggested in many forums: $ sudo asr restore -noverify -source /path/to/windows/windows_7.iso -target /Volumes/Untitled/ -eraseĬould not validate source - Invalid argument.When the ISO-image is unmounted: 'RESTORE FAILURE Could not validate source - Invalid argument'.I opened Disk Utility, went to the restore tab, chose the ISO as source and the USB key as destination. The USB key is formatted as Mac OS Extended (HFS+).

Initially I tried to create a bootable USB key. I downloaded it twice, with the DreamSpark download manager, with the same results. I am fairly certain, that the ISO image is not corrupted. (I'm trying to do all this on Mountain Lion.) I am running into multiple problems creating the disk image for Windows 7. My goal is to install Windows 7 (32-bit) on my MacBook Pro (late 2007) with Boot Camp. Sorry, that I don't have a satisfying solution. EDIT: I gave in and burned the DVD from a windows PC and I was able to install Windows on my MacBook Pro with Bootcamp.

Mac disk utility restore failure could not validate source