Mac os partition resize failed

From what I could gather your disk was converted to a CoreStorage Volume. 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:. The currently available Disk Utility doesn't support resizing of logical Volumes.

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However using the command line, there is a undocumented function that allows you to resize Volumes. As 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.

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  • Resize a Volume Without Losing Any Data.

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. With this command and the correct UUID of the Volume it should be possible to resize one of the Volumes within your logical group. If your partition turned into Logical Volume Group you can't resize or delete Yosemite partition , you can revert partition type with few command line. Your Yosemite partition is now revert to default partition type. Now, you can resize or delete yosemite partition.

Worked for me! Please ensure that you have both partitions formatted with a file system that Mac OS X supports online resizing for i.

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Looking at the Used sizes in your Disk Utility, I think you don't have enough space to resize the partitions. Use something like Carbon Copy Cloner to make a disk image backup of the partitions, repartition the external as you desire, and copy back. Do NOT use block copy mode. Follow the screen to allow the new partition to be added. Do this to prove the OS would let you add a partition.

Now highlight the partition just aded and click "-" to delete. Do this to prove the OS would let you delete a partition. If both action were successful, you should be able to adjust the Macintosh HD to any size. I have solved this after two days of searching around the Internet. The question, when I run disk utility I don't see the "draggable" corner of the hard disk which I need to resize. This is my solution, I will write down step by step:. In the recovery mode, run Disk utility. Turn off the disk encryption which is at the file setting on the top bar.

Now you will notice that your hard disk name might change. Restart again in OS X. Run Disk Utility. Now the "dragging" corner is available. Click on it and resize as you want. Restart into Windows OS.

Fixing “Partition Failed” Errors in Mac OS X

Download the free software Minitool partition. It will allow you to merge unused space with your windows HD. Everything was smooth and my windows is still running nicely. Home Questions Tags Users Unanswered. Unable to Resize Partitions Ask Question. Asked 5 years, 5 months ago.

Disk Utility vs Mac Partition Manager Software – Resizing Mac HDD

Active 3 years, 3 months ago. Viewed k times. 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 "GB Hard Drive" or similar.

Cory Cory 1 1 gold badge 2 2 silver badges 4 4 bronze badges. At first I thought not, now I think you have. Just trying to word it to prevent Yosemite off topic flags, as I believe the issue is valid and not related to the pre-release software. Please reproduce this under Worth noting, if a user intends to shrink an LV then add an LV: apple.

That type of addition was reportedly possible in February before Mavericks so there may be a regression. I started writing a long-winded comment but submitted an answer instead. The problem for me was that Disk Utility couldn't resize the primary partition while the partition was mounted as the filesystem root.

See answer below. 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 The currently available Disk Utility doesn't support resizing of logical Volumes. The logical volume group will have more or less available space after this operation, if it was a shrink or grow, respectively. Removing a Boot Camp partition that is part of a Fusion Drive and resizing the remaining partition should be performed with the Boot Camp Assistant and not Disk Utility.

Originally, the idea was to store three libraries, each on their own partition: a home videos library, the iTunes library, and a photo library. After a while, it become apparent that the home videos library needed more room, due to all the movies you enjoy making, and the iTunes library was much larger than needed, while the photo library partition was about the right size, though still having plenty of free space.

To make room for a bigger Home Videos partition, use the Finder to copy the data in the iTunes partition to the Photos partition.

You can now remove the iTunes partition to allow you to enlarge the Home Videos partition to meet your expected needs. Once the Home Videos partition has been enlarged, you can reclaim some of the space for the smaller iTunes partition you also need. This somewhat complex example turns out to be a good model for the type of resizing commonly performed.


KB Parallels: ERROR: Unable to resize the last volume.

It also includes many of the resizing rules, and requires moving data around, deleting partitions, expanding partitions, and recreating a previous partition that is smaller than it used to be. In the Disk Utility sidebar, select the disk associated with the three partitions. Select the iTunes partition by clicking once within it. The partition should be highlighted, and the Partition information panel will contain data about the selected partition.

Shrinking partition results in an error

With the partition selected, click the minus button - to delete the partition. Note : The rules require the partition behind the one you wish to enlarge to be deleted to allow for the enlargement of the partition.

Mac OS 10.8.4 Partitioning failed - need HELP

The partition map will display the anticipated results; in this case, the iTunes partition is removed, and its space is assigned to the Home Videos partition. Or, you could resize the now larger Home Videos partition to make it a bit smaller, and create an additional but smaller partition for the iTunes Library.

Select the Home Videos partition, and then change the value in the Size field to a new smaller value. In my example, the Home Videos partition ended up being GB, but GB would be more than large enough, and would leave enough space left over for the iTunes partition. Your numbers may vary, depending on the sizes of your drive and partitions. Enter GB in the Size field, and then hit the tab key for the Partition map to show the expected results.

Note : The rules state that when you reduce the size of a partition, a new partition is created with the space you freed up. Notice you now have an Untitled partition you can use for iTunes, and you also have a resize control small white circle on the partition map that you can use to adjust the size of the new Untitled partition, and the Home Videos partition. A sheet will drop down to show you the status of the partition resizing being applied.