As the title says, I've backed up my main MBP hard drive using the "Backup - All Files" script to an external Firewire drive partition. I can boot to the backup drive without a problem but I can't unmount the primary drive. When I try I get the message 'The disk "Macintosh HD" could not be unmounted. Make sure that all applications and files are closed on this disk.'
I've tried searching the forum and the only similar problem I could find was here:- http://www.shirt-pocket.com/forums/s...unt+hard+drive
Someone who was backing up to an image (which I'm not doing) and was told to rename the image backup to the same as the primary drive. That's not an easy option for me, without re-formating my backup drive partition.
Any ideas what is causing this and how I can fix to unmount my main drive?