OK, so we now know that you do, in fact, only have about 8GB of unpartitioned space. Let's resize this to 70% of the disk, leaving 30% for your testing--that would be about 20GB. Adjust as required. You'd type this, and enter your password (hope you've got that backup): sudo diskutil resizeVolume disk0s2 70% JHFS+ Testing 0
This ought to get your original partition resized to 70%, give or take a bit, and get you a second slice called "Testing" for your testing with the remainder. The free space is between the first slice and the recovery area. Hope it works ... -- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to macvisionaries+unsubscr...@googlegroups.com. To post to this group, send email to macvisionaries@googlegroups.com. Visit this group at http://groups.google.com/group/macvisionaries. For more options, visit https://groups.google.com/d/optout.