I have a Mac and am dual booting Ubuntu. I booted from a USB and used GParted to shrink the Ubuntu partition leaving me with about 100G of free space. I want to use this to increase the OS X partition space. GParted will not let me increase the OS X partition size (although it will let me decrease it). I've also tried using Disk Utility from OS X.
When I had the 100G of unallocated space, Disk Utility would report "MediaKit reports partition (map) too small." I also tried creating a new partition of both "unformatted" and "cleared." Now when I use Disk Utility, it says "Preparing to resize," but doesn't move on. It doesn't lock up, but even after half an hour it is still "preparing to resize."
GParted still can't increase the OS X partition size either (same as before). I also can't create an
hfs+ partition with the unallocated space. The option is there, but it is grayed out.
I've seen this question, but the solutions all involve booting the OS X CD, which I do not have. Using
df does not list the OS X partition either, but Ubuntu does not appear to have
In general, I've read that I need to repair the partition table, but the only ways from OS X that I've found to do this require having a CD to boot from.
I've also read that since I used GParted to create the free space, I need to use GParted to resize the partition or at least put it in a resizable state, but nothing I've done will allow me to resize the OS X partition.