Unable To Unmount Volume For Repair Mac Air
The Mac OS X core system image is not the cause of your problem. See What is the ‘Mac OS X Base System’ disk image on my 2011 Macbook AIr? To get an explanation. Partition failed couldn’t unmount disk. Qnapsupport.net is Personal Website established to help both endusers and Qnap technical staff. Documents are based on the information provided to us and my personal experience. Tech Tip: How to Use the Restore Feature of Disk Utility to Clone a Drive Tuesday, January 10th, 2017 Author: Tom Nelson Disk Utility, in all of its incarnations, has always had a restore function, a way to copy a disk volume or image file to another volume, creating an exact copy. In Mac there are several errors which is difficult to cumbersome whenever they encounter and “Error: Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.”.
Unmount Disk Mac
So perhaps it's simply a periferals-related problem. I found out in the meantime that the odd behaviour of DU is simply a bug in El Cap. Thank you very much for the suggestion. I did run that after I posted last night. Unfortunately I am now at work so I don't have access to the info. I remember there were a few 'crashes' listed at the end. Some of them involved the driver for my rather old Wacom Pen and Touch tablet. Skype for mac version history.
Disk Utility Can't Unmount Disk

You should always boot from a drive other than the one you're trying to initialize. To boot from a CD, DVD, or different hard drive, see If you are still having trouble unmounting the disk, try the following: • Restart the computer. • Try to unmount the disk manually from the Finder. In the left pane of the Finder toolbar window, an eject button should appear to the right of the disk's listing; it looks like an up-facing arrow with a line underneath it. Alternatively, if you have the Finder set to display disks on the Desktop, you can drag the disk to the Trash from there. Winzip for mac for free. • Make sure there are no applications currently running from the disk you want to initialize.