how do I "un-partition" my MACINTOSH HD into one big hard drive? So I was derping around on my computer (it has a 250 gigabyte hard drive) and thought,"hmm I wonder what happens if I partition off 75 gigs of this". believe it or not, it partitioned off 75 gigabytes on my hard drive, so what's the problem? well I have no idea how to make it one big single 250 gigabyte partition again. I tried everything, I did the minus on the partition, I did the slide, I repaired with disk utility, same thing with disk utility from the restart CMD+R, and spent hours on the internet looking for a solution. Is there anyone who can help me here?
You could create another partition that's the size of the other half of the disk. Then, because you can't merge your boot disk, you could make a GParted live USB, boot from it, and merge it.