I have recently created a partition on my macbook air running OS X 10.9, and this was to run install another OS instance (Yes, OS X 10.10 Yosemite, but that is an aside to the query I have) on it.
I got the partition running fine, with the OS working fine as well, but now when I go back into Disk Utility, I noticed two things that are wrong:
Firstly, the disk that houses the two partitions has taken the name that I had thought I had given the new partition ("Yosemite"), instead of what it originally said, somewhere along the lines of "125GB Hard Drive" or similar.
Perhaps due to this, I believe, the tabs have changed when I select this disk, and I can no longer resize the partitions. The options are greyed out, and I cannot drag to resize either.
The Disk Utility looks similar to that seen in this question: Unable to adjust partition of USB drive with Mountain Lion Disk Utility though my computer is not encrypted, and it is the computer, not the USB I am having trouble with.
I tried entering Disk Utility from the Recovery Mode (by holding down option at start up), but the problem still persists. I have tried changing the start up discs between the two, but still nothing changed in the menu.
I believe that a reason for this problem is that somehow the drive is now a logical volume group. I don't really understand what this is, and how to fix it.
Note, this question is purely about partitioning, I do intend to use Yosemite on the partition when it is working, but at present it's a plain Mavericks system with a partitioning problem.
Here is an image of my Disk Utility: