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1. #MAC DISK UTILITY PARTITION GRAYED OUT HOW TO#
2. #MAC DISK UTILITY PARTITION GRAYED OUT INSTALL#
3. #MAC DISK UTILITY PARTITION GRAYED OUT PRO#

#MAC DISK UTILITY PARTITION GRAYED OUT PRO#

I am using MacBook Pro 15" retina, with another partition having Windows 8 created by Boot Camp in Mac. I have solved this after two days of searching around the Internet.

#MAC DISK UTILITY PARTITION GRAYED OUT HOW TO#

The resizeVolume function isn't listed in the first listing of available commands above but it still exists and it even provides you with an example on how to use it. The logical volume group will have more or lessĪvailable space after this operation, if it was a shrink or grow, respectively.Įxample: diskutil coreStorage resizeVolume Resize a logical volume, which is one of one or more disks that consume storage LvUUID|MountPoint|DiskIdentifier|DeviceNode size However the following undocumented functions exists: chris$ diskutil corestorage resizeVolume UnlockVolume (Attach/mount a locked CoreStorage logical volume)ĬhangeVolumePassphrase (Change a CoreStorage logical volume's passphrase)Īs you can see, it doesn't offer any option of resizing a Volume, hence my guess why Disk Utility doesn't allow you to resize. Revert (Revert a CoreStorage volume to its native type)Ĭreate (Create a new CoreStorage logical volume group)ĭelete (Delete a CoreStorage logical volume group)ĬreateVolume (Create a new CoreStorage logical volume)ĭeleteVolume (Delete a volume from a logical volume group)ĮncryptVolume (Encrypt a CoreStorage logical volume)ĭecryptVolume (Decrypt a CoreStorage logical volume) Info (Get CoreStorage information by UUID or disk)Ĭonvert (Convert a volume into a CoreStorage volume)

List (Show status of CoreStorage volumes) If you consult the help command of diskutil you will receive the following output: chris$ diskutil corestorage However using the command line, there is a undocumented function that allows you to resize Volumes. The currently available Disk Utility doesn't support resizing of logical Volumes. Could you please verify that by issuing the following command in a terminal and check if you get a similar output to the one in the picture: diskutil corestorage list From what I could gather your disk was converted to a CoreStorage Volume. If I understand your question correctly you are trying to resize the volume group or actually one of the volumes within a group. It's a plain Mavericks system with a partitioning problem. Use Yosemite on the partition when it is working, but at present Note, this question is purely about partitioning, I do intend to I don't really understand what this is, and how to fix it. I believe that a reason for this problem is that somehow the drive is now a logical volume group. I have tried changing the start up discs between the two, but still nothing changed in the menu.

I tried entering Disk Utility from the Recovery Mode (by holding down option at start up), but the problem still persists. 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. The options are greyed out, and I cannot drag to resize either. Perhaps due to this, I believe, the tabs have changed when I select this disk, and I can no longer resize the partitions. 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:įirstly, 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.

#MAC DISK UTILITY PARTITION GRAYED OUT INSTALL#

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.