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To expand your CoreStorage Logical Volume Macintosh HD you have to delete the blocking NO NAME EFI partition (disk1s5). The two unnamed parts (138.62 GB and 99.9 GB) are no partitions but unallocated disk space. To remove the second EFI partition (and expand Macintosh HD) you have to boot to Internet Recovery Mode or an OS X system on an external device. ...


Ok, I figured out an alternative method - I was able to combine the partitions using the diskutil mergePartitions command (e.g. diskutil mergePartitions JHFS+ MacHD disk0s2 disk0s4). Hope that helps anyone else with the same issue!


Unfortunately OS X Disk Utility refuses to modify partitions on MBR disks. You can modify partitions form the command line using fdisk. If you have a Ubuntu machine you would be better to use this e.g. using gparted to resize/move/create the partitions.

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