Disk Utility – Fix Storage Display Issues Causing Partitioning Problems

bootcampdisk-utilitymacospartition

I am trying to partition my internal HDD so that I can install Windows 10. I tried using Boot Camp to do this (which is where I think the problem started) but it failed so I am trying to do it manually.

Now when I open Disk Utility it looks like this:

When I then click partition the 'pie chart' adds up to 6TB, which is twice as much storage than I have:

When I try taking away the left hand partition and apply, it fails. If I add another partition, it duplicates that too.

When I look at storage in the 'About This Mac' tab it shows Macintosh HD twice, each HDD looks exactly the same.

Does anyone know why this might be happening?

Any help would be really appreciated.

My Mac info:

OS X El Capitan Version 10.11.6
iMac (27-inch, Late 2012)
Processor 3.4 GHz Intel Core i7
Memory 32 GB 1600 MHz DDR3
Graphics NVIDIA GeForce GTX 680MX 2048 MB
Storage 3TB SATA Disk

Output of sudo gpt -r show disk0 entered in Terminal:

       start        size  index  contents
           0           1         PMBR
           1           1         Pri GPT header
           2          32         Pri GPT table
          34           6         
          40      409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
      409640  4293286064      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
  4293695704     1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
  4294965240  1565305744      4  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
  5860270984      262144      5  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
  5860533128           7         
  5860533135          32         Sec GPT table
  5860533167           1         Sec GPT header

Output of diskutil cs list entered in Terminal:

CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group D60F9C59-F78F-4DA6-A77E-BFCBAA1CCDE7
    =========================================================
    Name:         Macintosh HD
    Status:       Online
    Size:         2999599005696 B (3.0 TB)
    Free Space:   0 B (0 B)
    |
    +-< Physical Volume 4B824E44-314C-483C-8767-67B3C5006A65
    |   ----------------------------------------------------
    |   Index:    0
    |   Disk:     disk0s2
    |   Status:   Online
    |   Size:     2198162464768 B (2.2 TB)
    |
    +-< Physical Volume 9BF5F397-185C-4561-B24B-D38C3C81442F
    |   ----------------------------------------------------
    |   Index:    1
    |   Disk:     disk0s4
    |   Status:   Online
    |   Size:     801436540928 B (801.4 GB)
    |
    +-> Logical Volume Family E8825944-F8B2-4073-8806-1B9B1FED716D
        ----------------------------------------------------------
        Encryption Type:         None
        |
        +-> Logical Volume 17FA23EF-79C7-41E2-A04B-AFA3F449624C
            ---------------------------------------------------
            Disk:                  disk1
            Status:                Online
            Size (Total):          2998978236416 B (3.0 TB)
            Revertible:            No
            LV Name:               Macintosh HD
            Volume Name:           Macintosh HD
            Content Hint:          Apple_HFS

Best Answer

I don't know the history of your iMac but your internal hard drive is pretty messed up.

The drive is partitioned to five slices:

the EFI partition at index 1 with a size of 209 MB
a Physical Volume at index 2 with a size of 2.2 TB
a Recovery HD partition at index 3 with a size of 650 MB
a Physical Volume at index 4 with a size of 801 GB
a Boot OS X partition at index 5 with a size of 134 MB

Additionally the device contains a Logical Volume Group (CoreStorage). CoreStorage is a logical volume manager, which is an additional layer between device/partition and a volume.

A Logical Volume Group is based on one or several Physical Volumes (which can be one or several physical devices/partitions) and may contain one or several Logical Volume Families/Logical Volumes.

On one disk the common layout of a LVG is: LVG < one PV (disk0s2) > one LVF > one LV (disk1).
On two disks (e.g a Fusion Drive) the common layout of a LVG is: LVG < two PVs (disk0s2 & disk1s2) > one LVF > one LV (disk2).

Your actual disk (disk0) has a non-standard layout: LVG < two PVs (disk0s2 & disk0s4) > one LVF > one LV (disk1). This may happen after resizing the CoreStorage stack and adding an additional partition in the then unallocated disk space, formatting it as HFS volume and adding it as a second Physical Volume to the already existing Logical Volume Group.

I can't really explain the origin of the Boot OS X volume (disk0s5).

To salvage the mess, backup Macintosh HD with Time Machine, boot to Internet Recovery Mode, repartition the internal drive to one (main) non-CoreStorage partition and restore the backup:

Booted to your main volume attach your Time Machine backup drive. Go to the menubar and initiate another Time Machine backup cycle by choosing "Backup now...".
Detach the Time Machine drive after the backup is done
Restart to Internet Recovery Mode by pressing alt cmd R at startup.
The prerequisites are the latest firmware update installed, either ethernet or WLAN (WPA/WPA2) and a router with DHCP activated.
On a 50 Mbps-line it takes about 4 min (presenting a small animated globe) to boot to a recovery netboot image which usually is loaded from an apple/akamai server.

I recommend ethernet because it's more reliable. If you are restricted to WIFI and the boot process fails, just restart your Mac until you succeed booting.

Alternatively you may start from a bootable installer thumb drive (Yosemite or El Capitan) or a thumb drive containing a full system (Yosemite or El Capitan).
Open in the menubar Utilities/Terminal
Enter diskutil cs list
You will get an identical output as in your question
enter diskutil cs delete lvgUUID (with lvgUUID: the UUID of your Logical Volume Group). In your case that's diskutil cs delete D60F9C59-F78F-4DA6-A77E-BFCBAA1CCDE7.

The command should delete all CoreStorage items.
Enter exit in Terminal
In the main Recovery Mode Window open "Disk Utility"
Choose the main disk (not one of the volumes!) and hit the Erase button.
Repartition the main disk to 1 partition, OS X Extended (Journaled) and GUID partition map.
Attach your external Time machine backup drive
Quit "Disk Utility" and open "Restore from Time Machine". Choose the external drive as backup source and restore the latest Time Machine backup on your empty internal drive.
After restoring the backup, quit all apps and reboot to your main drive.

Related Solutions

MacOS – Unable to reformat/repartition CoreStorage logical volume (Fusion drive)

I was able to delete a mess I made trying to delete my Raid 10 in diskutil (which ended up looking similar to above) using the commands below in Terminal.app. May or may not work with fusion but it's easier than booting up again.

Get rid of the volume - copy paste the logical volume name where it says "Logical Volume Name", without the quotes:

diskutil cs deleteVolume "*Logical Volume Name*"

Free the disk - copy paste the volume name where it says "Physical Volume Name", without the quotes:

diskutil cs removeDisk "*Physical Volume name*"

Repeat these steps as needed.

Fusion Drive – Repairing Possible Mess-Up on 1TB iMac with BootCamp

Theoretically everything is fine with your Fusion Drive. Fusion Drives look like this. Disk0 is your SSD with 121 GB and disk1 is your HDD with ~1 TB (~1.121 TB summed up).

The larger parts of your SSD (disk0s2) and your HDD (disk1s2) are pooled to a CoreStorage LVG (Fusion Drive: disk3) with a size of 967.8 GB. The rest is reserved for EFIs, a Recovery HD (alltogether ~1.3 GB) and your old Windows partition - now probably free space (~152 GB).

The logical volume 'Macintosh HD' (967.8 GB) spans disk0s2 and disk1s2. This is the first 'Macintosh HD' in picture 1. The volume 'Macintosh HD' - it's the one visible on the desktop - should ideally also have about 967.8 GB. This is the second 'Macintosh HD' in picture 1.
In fact it has only 852.67 GB (see picture 3).

In the second picture the logical volume 'Macintosh HD' is the first listed in black, the volume 'Macintosh HD' is the second listed in black, the other two 'Macintosh HD's listed in grey are the parts of your SSD and HDD dedicated to the logical volume 'Macintosh HD'.

In my opinion something went wrong after deleting various partitions with the Bootcamp Assistant/Disk Utility or in Windows.

Preparation:

Detach any external drive (especially your external Time Machine backup drive)
Restart to Internet Recovery Mode by pressing alt cmd R at startup.
The prerequisites are the latest firmware update installed, either ethernet or WLAN (WPA/WPA2) and a router with DHCP activated.
On a 50 Mbps-line it takes about 4 min (presenting a small animated globe) to boot into a recovery netboot image which usually is loaded from an apple/akamai server.

I recommend ethernet because it's more reliable. If you are restricted to WIFI and the boot process fails, just restart your Mac until you succeed booting.

Alternatively you may start from a bootable installer thumb drive (preferably Mavericks or Yosemite) or a thumb drive containing a full system (preferably Mavericks or Yosemite).

Now you may either repair CoreStorage or rebuild your Fusion Drive:

'Repair CoreStorage' (not recommended):

First i would try to check the volume 'Macintosh HD' with Disk Utility. If the volume is corrupted consider a reinstall of Mac OS X.
If the volume is ok quit Disk Utility
Open Terminal and enter diskutil unmountDisk /dev/LVIdentifier and both diskutil unmountDisk /dev/DiskContainingApple_CoreStorageIdentifier
In your case: first diskutil unmountDisk /dev/disk3 then diskutil unmountDisk /dev/disk0 and diskutil unmountDisk /dev/disk1
remove the EFI NO NAME partition with gpt remove -i IndexNumberOfEFINoName DiskIdentifier:
gpt remove -i 4 disk1
Remount the CoreStorage disks and then the Logical Volume:
In your case: first diskutil mountDisk /dev/disk0 and diskutil mountDisk /dev/disk1 and then diskutil mount /dev/disk3.

enter gpt -r -vvv show /dev/diskIdentfierOfApple_CoreStorage to get infos of your HDD CoreStorage disk.
In your case: gpt -r -vvv show /dev/disk1
It should look like this:

-bash-3.2# gpt -r -vvv show /dev/disk1
gpt show: /dev/disk1: mediasize=1000204886016; sectorsize=512;         blocks=1953525168
gpt show: /dev/disk1: PMBR at sector 0
gpt show: /dev/disk1: Pri GPT at sector 1
gpt show: /dev/disk1: GPT partition: type=C12A7328-F81F-11D2-BA4B-00A0C93EC93B, start=40, size=409600
gpt show: /dev/disk1: GPT partition: type=53746F72-6167-11AA-AA11-00306543ECAC, start=409640, size=1671210848
gpt show: /dev/disk1: GPT partition: type=426F6F74-0000-11AA-AA11-00306543ECAC, start=1671620488, size=1269760
gpt show: /dev/disk1: Sec GPT at sector 1953525167                               
     start          size  index contents                                        
         0             1        PMBR                                            
         1             1        Pri GPT header                                  
         2            32        Pri GPT table                                   
        34             6
        40        409600      1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
    409640    1671210848      2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
1671620488       1269760      3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
1672890248     280634887
1953525135            32        Sec GPT table
1953525167             1        Sec GPT header

The free space on your HDD has 280634887 blocks. Please calculate the biggest block number dividable through 8. That's 280634880 blocks (á 512 bytes) which equals 143685058560 B or ~143.7 GB. Add the size of your HDD CoreStorage Physical Volume (852666400768 B) The result is 143685058560 B + 852666400768 B = 996351459328 B
Resize your HDD CoreStorage physical volume with diskutil cs resizeDisk HDDPVUUID newsize
In your case: diskutil cs resizeDisk 93892BE8-2B7F-4ABD-A4C3-984495DCD98D 996351459328b
Calculate the maximal size of your CoreStorage Logical Volume in diskutil cs list: (size disk0s2) + (size disk1s2) In your case that's 120988852224 B + 996351459328 B = 1117340311552 B. That should be the size of your refreshed Logical Volume Group.
Resize your Logical Volume with diskutil cs resizeVolume LVUUID LVGSize-128 MB In your case that's diskutil cs resizeVolume D237FFDC-7DA4-41D7-AC13-4CC7E5E8C0A0 1117212311552b. If you get an error (There is not enough free space...) choose a smaller size like 1117148311552b.
Quit Terminal and open Disk Utility.
Check your expanded CoreStorage Volume for errors.
Quit Disk Utility, choose your CS volume as startup disk and restart your Mac

'Rebuild Fusion Drive' (recommended if you have a Time Machine backup)

Booted to Internet Recovery Mode open Utilities → Terminal in the menubar and enter:
diskutil cs list to get the CoreStorage listing.
Copy the Logical Volume UUID, it's the fifth listed.
Now delete the Logical Volume with diskutil cs deleteVolume LVUUID.
In your case: diskutil cs deleteVolume D237FFDC-7DA4-41D7-AC13-4CC7E5E8C0A0.
Copy the Logical Volume Group UUID, it's the first listed in the listing of diskutil cs list.
Then delete the Logical Volume Group with diskutil cs delete LVGUUID.
In your case: diskutil cs delete 1EFE58BC-3613-44C4-86EE-D816F3B66E3E
Enter exit and quit 'Terminal'
Open 'Disk Utility'. Enter 'Ignore' if you are asked to fix the drives.
Choose your SSD and partition it: 1 Partition Mac OS X Extended (Journaled), hit the Options button and choose GUID Partiton table and hit OK and Apply.
Please check that the size is ~121 GB

Example:
Choose your HDD and partition it: 1 Partition Mac OS X Extended (Journaled), hit the Options button and choose GUID Partiton table and hit OK and Apply.
Please check that the size is ~1 TB

Example:
Quit Disk Utility and open Terminal
Enter diskutil list

Example (your disk identifiers and sizes are different of course: Your volume SSD probably has the Identifier disk0s2 and the size 121 GB and your volume HDD probably has the Identifier disk1s2 and the size 1.0 TB):
Enter diskutil cs create "Name" IdentifierSSD IdentifierHDD
In your case probably diskutil cs create "Macintosh HD" disk0s2 disk1s2.

Copy the resulting LVGUUID

Example:
Enter diskutil cs CreateVolume LVGUUID jhfs+ "Macintosh HD" 100%.

Example:
Enter diskutil cs list
Check the size of your Logical Volume. It should have the size ~1.121 TB

Example:
Quit Terminal
Open 'Disk Utility' and check your newly created volume for errors
Quit 'Disk Utility'
Attach your external Time Machine backup drive or check this answer if you use NAS or another network share.
Open 'Restore from Time Machine Backup'
Choose the appropriate Time Machine backup and restore your system
Reboot to your restored system.
Unmount and detach your Time Machine backup drive
Open 'Terminal' and enter 'diskutil list'
Check if your 'Recovery HD' is listed.
If your 'Recovery HD' is missing, usually reinstalling your current system with the latest available system installer (e.g. 'Install OS X Mavericks (10.9.5)' if Mavericks is currently installed) will recreate it without loosing any data. AFAIK Recovery Partition Creator 3.8 will NOT create a Recovery HD on CoreStorage volumes.
After reinstalling the system with the latest available system installer open App Store and install the latest security fixes.

Best Answer

Related Solutions

MacOS – Unable to reformat/repartition CoreStorage logical volume (Fusion drive)

Fusion Drive – Repairing Possible Mess-Up on 1TB iMac with BootCamp

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