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Level 1

1 points

Can't format former Boot Camp partition

So I stupidly erased my Boot Camp partition using Disk Utility rather than in the Boot Camp Assistant. And now I the partition is stuck as free space and i can't change it. When i select the free space in Disk Util, I can change it to Mac OS Extended and ExFAT as usual, but when I press apply, the progress bar appears for a brief second and disappears. Then it acts as if I never pressed apply; when I close the window, it says that I have unsaved changes. The free space does not appear as a drive in the left sidebar.

I have tried reinstalling OS X, I've tried returning to a time machine backup, I've verified and repaired the disk, but nothing has worked.

I'm left with 67GB of space unusable on my macbook now.

MacBook Pro with Retina display, OS X Mavericks (10.9.4)

Posted on Oct 11, 2014 9:36 AM

239 replies

Loner T

Level 9

59,477 points

Jul 30, 2015 11:15 AM in response to ralphejims

disk0s2 is part of the CS volume/volume group Macintosh HD. It is not blank. You also have a 1TB Samsung CS volume/volume group.

Can you post the output of diskutil list?

Jul 30, 2015 11:32 AM in response to Loner T

I just deleted the hard drive with the command diskutil cs delete 256053B4-C324-4591-96F1-0CBAE63CF3F5. The result is the following. How do i restore the hard drive without creating further partitions. The following disk is my external drive that i use for time machine and backup.

-bash-3.2# diskutil cs list

CoreStorage logical volume groups (1 found)

+-- Logical Volume Group FF72BC95-BB44-4D39-A18B-6A8A340C2422

=========================================================

Name: SAMSUNG

Status: Online

Size: 999860912128 B (999.9 GB)

Free Space: 4096 B (4.1 KB)

+-< Physical Volume 9363C514-E066-4D81-81ED-7AE7BE622E28

| ----------------------------------------------------

| Index: 0

| Disk: disk14s2

| Status: Online

| Size: 999860912128 B (999.9 GB)

+-> Logical Volume Family DD5A18B6-41CF-455F-9340-1995130B58F7

----------------------------------------------------------

Encryption Status: Locked

Encryption Type: AES-XTS

Conversion Status: Complete

Conversion Direction: -none-

Has Encrypted Extents: Yes

Fully Secure: Yes

Passphrase Required: Yes

+-> Logical Volume F4FB7891-388E-40BA-846B-76A8D2CF17B7

---------------------------------------------------

Disk: -none-

Status: Locked

Size (Total): 999525363712 B (999.5 GB)

Conversion Progress: -none-

Revertible: Yes (unlock and decryption required)

LV Name: SAMSUNG

Content Hint: Apple_HFSX

-bash-3.2#

Jul 30, 2015 11:35 AM in response to Loner T

I have posted already 2 lists. One is the list before i deleted the hard drive. the secon is the list after i have deleted the hard drive. What else should i do in order to restore the hard drive without having partitions?

Loner T

Level 9

59,477 points

Jul 30, 2015 11:43 AM in response to ralphejims

Can you temporarily disconnect the TM disk? Once disconnected, post the output of

diskutil list

diskutil cs list (this is different from the first command).

Jul 30, 2015 12:03 PM in response to Loner T

Ok, it will take quite a moment. around 15 mins. I have removed the TM and it is restarting through internet connection. Just be patient

Loner T

Level 9

59,477 points

Jul 30, 2015 12:05 PM in response to ralphejims

Take your time. 😉

Jul 30, 2015 12:45 PM in response to Loner T

It has finished restarting. This is what i got from the list:

-bash-3.2# diskutil cs list

No CoreStorage logical volume groups found

-bash-3.2#

-bash-3.2# diskutil cs list

No CoreStorage logical volume groups found

-bash-3.2#

Loner T

Level 9

59,477 points

Jul 30, 2015 12:50 PM in response to ralphejims

diskutil list

Do not use cs.

Jul 30, 2015 1:04 PM in response to Loner T

-bash-3.2# diskutil list

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *121.3 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_HFS Untitled 121.0 GB disk0s2

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk1

1: EFI EFI 209.7 MB disk1s1

2: Apple_HFS Untitled 708.5 GB disk1s2

3: EFI NO NAME 104.9 MB disk1s3

4: EFI NO NAME 104.9 MB disk1s4

5: EFI NO NAME 104.9 MB disk1s5

/dev/disk2

#: TYPE NAME SIZE IDENTIFIER

0: Apple_partition_scheme *1.3 GB disk2

1: Apple_partition_map 30.7 KB disk2s1

2: Apple_HFS OS X Base System 1.3 GB disk2s2

/dev/disk3

#: TYPE NAME SIZE IDENTIFIER

0: untitled *524.3 KB disk3

/dev/disk4

#: TYPE NAME SIZE IDENTIFIER

0: untitled *524.3 KB disk4

/dev/disk5

#: TYPE NAME SIZE IDENTIFIER

0: untitled *524.3 KB disk5

/dev/disk6

#: TYPE NAME SIZE IDENTIFIER

0: untitled *524.3 KB disk6

/dev/disk7

#: TYPE NAME SIZE IDENTIFIER

0: untitled *524.3 KB disk7

/dev/disk8

#: TYPE NAME SIZE IDENTIFIER

0: untitled *6.3 MB disk8

/dev/disk9

#: TYPE NAME SIZE IDENTIFIER

0: untitled *2.1 MB disk9

/dev/disk10

#: TYPE NAME SIZE IDENTIFIER

0: untitled *1.0 MB disk10

/dev/disk11

#: TYPE NAME SIZE IDENTIFIER

0: untitled *524.3 KB disk11

/dev/disk12

#: TYPE NAME SIZE IDENTIFIER

0: untitled *524.3 KB disk12

/dev/disk13

#: TYPE NAME SIZE IDENTIFIER

0: untitled *1.0 MB disk13

/dev/disk14

#: TYPE NAME SIZE IDENTIFIER

0: FDisk_partition_scheme *1.0 GB disk14

1: DOS_FAT_16 USB Drive 1.0 GB disk14s1

-bash-3.2#

Jul 30, 2015 1:08 PM in response to ralphejims

I used a USB drive to copy the list command because safari is not responding. You will see it at the bottom of the list

Jul 30, 2015 1:11 PM in response to Loner T

A new list without the USB drive

-bash-3.2# diskutil list

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *121.3 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_HFS Untitled 121.0 GB disk0s2

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk1

1: EFI EFI 209.7 MB disk1s1

2: Apple_HFS Untitled 708.5 GB disk1s2

3: EFI NO NAME 104.9 MB disk1s3

4: EFI NO NAME 104.9 MB disk1s4

5: EFI NO NAME 104.9 MB disk1s5

/dev/disk2

#: TYPE NAME SIZE IDENTIFIER

0: Apple_partition_scheme *1.3 GB disk2

1: Apple_partition_map 30.7 KB disk2s1

2: Apple_HFS OS X Base System 1.3 GB disk2s2

/dev/disk3

#: TYPE NAME SIZE IDENTIFIER

0: untitled *524.3 KB disk3

/dev/disk4

#: TYPE NAME SIZE IDENTIFIER

0: untitled *524.3 KB disk4

/dev/disk5

#: TYPE NAME SIZE IDENTIFIER

0: untitled *524.3 KB disk5

/dev/disk6

#: TYPE NAME SIZE IDENTIFIER

0: untitled *524.3 KB disk6

/dev/disk7

#: TYPE NAME SIZE IDENTIFIER

0: untitled *524.3 KB disk7

/dev/disk8

#: TYPE NAME SIZE IDENTIFIER

0: untitled *6.3 MB disk8

/dev/disk9

#: TYPE NAME SIZE IDENTIFIER

0: untitled *2.1 MB disk9

/dev/disk10

#: TYPE NAME SIZE IDENTIFIER

0: untitled *1.0 MB disk10

/dev/disk11

#: TYPE NAME SIZE IDENTIFIER

0: untitled *524.3 KB disk11

/dev/disk12

#: TYPE NAME SIZE IDENTIFIER

0: untitled *524.3 KB disk12

/dev/disk13

#: TYPE NAME SIZE IDENTIFIER

0: untitled *1.0 MB disk13

-bash-3.2#

Loner T

Level 9

59,477 points

Jul 30, 2015 1:15 PM in response to ralphejims

disk1 is not correct. You will need to erase it. After it is erased, you will have an EFI on disk1s0 and disk1s2 should be the entire disk (- 200MB). Post the output of the execution of the following commands.

1. diskutil erasedisk JHFS+ HDD disk1

2. diskutil cs create OSX-MacintoshLVG disk0s2 disk1s2

3. diskutil cs createVolume <UUIDFromStep2> jhfs+ "Macintosh HD" 100%

4. diskutil cs list

Jul 30, 2015 1:32 PM in response to Loner T

-bash-3.2# diskutil erasedisk JHFS+ HDD disk1

Started erase on disk1

Unmounting disk

Creating the partition map

Waiting for the disks to reappear

Formatting disk1s2 as Mac OS Extended (Journaled) with name HDD

Initialized /dev/rdisk1s2 as a 931 GB case-insensitive HFS Plus volume with a 81920k journal

Mounting disk

Finished erase on disk1

-bash-3.2#

-bash-3.2# diskutil cs create OSX-MacintoshLVG disk0s2 disk1s2

Started CoreStorage operation

Unmounting disk0s2

Touching partition type on disk0s2

Adding disk0s2 to Logical Volume Group

Unmounting disk1s2

Touching partition type on disk1s2

Adding disk1s2 to Logical Volume Group

Creating Core Storage Logical Volume Group

Switching disk0s2 to Core Storage

Switching disk1s2 to Core Storage

Waiting for Logical Volume Group to appear

Discovered new Logical Volume Group "D58C9A35-0855-4F6F-BED1-D59EAC5AF28C"

Core Storage LVG UUID: D58C9A35-0855-4F6F-BED1-D59EAC5AF28C

Finished CoreStorage operation

-bash-3.2#

-bash-3.2# diskutil cs createVolume D58C9A35-0855-4F6F-BED1-D59EAC5AF28C jhfs+ "Macintosh HD" 100%

The Core Storage Logical Volume Group UUID is D58C9A35-0855-4F6F-BED1-D59EAC5AF28C

Started CoreStorage operation

Waiting for Logical Volume to appear

Formatting file system for Logical Volume

Initialized /dev/rdisk14 as a 1 TB case-insensitive HFS Plus volume with a 90112k journal

Mounting disk

Core Storage LV UUID: 24B4FC14-6C84-44F9-A78E-07502960C541

Core Storage disk: disk14

Finished CoreStorage operation

-bash-3.2#

-bash-3.2# diskutil cs list

CoreStorage logical volume groups (1 found)

+-- Logical Volume Group D58C9A35-0855-4F6F-BED1-D59EAC5AF28C

=========================================================

Name: OSX-MacintoshLVG

Status: Online

Size: 1120849764352 B (1.1 TB)

Free Space: 32768 B (32.8 KB)

+-< Physical Volume BEB1745E-9977-4A6F-9511-699A0A46A234

| ----------------------------------------------------

| Index: 0

| Disk: disk0s2

| Status: Online

| Size: 120988852224 B (121.0 GB)

+-< Physical Volume 0F1676BC-5711-4E4F-8BD1-40001C3B8C04

| ----------------------------------------------------

| Index: 1

| Disk: disk1s2

| Status: Online

| Size: 999860912128 B (999.9 GB)

+-> Logical Volume Family 085B35F7-851C-4C5C-8C4E-D444A04D4B55

----------------------------------------------------------

Encryption Status: Unlocked

Encryption Type: None

Conversion Status: NoConversion

Conversion Direction: -none-

Has Encrypted Extents: No

Fully Secure: No

Passphrase Required: No

+-> Logical Volume 24B4FC14-6C84-44F9-A78E-07502960C541

---------------------------------------------------

Disk: disk14

Status: Online

Size (Total): 1115351285760 B (1.1 TB)

Conversion Progress: -none-

Revertible: No

LV Name: Macintosh HD

Volume Name: Macintosh HD

Content Hint: Apple_HFS

-bash-3.2#

Loner T

Level 9

59,477 points

Jul 30, 2015 1:37 PM in response to ralphejims

Looks fine. Please restore from your TM backup now.

Jul 30, 2015 1:42 PM in response to Loner T

Thats interesting thanks a lot. i think i can sleep today.

Should i restore from a particular time to avoid recreating the initial problem that led me to this. Or should i restore from a day before the problem was created. The problem resulted because i wanted to install Windows 8.1pro using Boot camp. What do you just? thanks

Can't format former Boot Camp partition