Deleted Partition made from Bootcamp with Disk Utility BIG MISTAKE

BC Assistant moves Recovery HD to make the partition contiguous, but Disk Utility does not/can not.

Can you post the output of the following Terminal commands?

diskutil list

diskutil cs list

sudo gpt -vv -r show /dev/disk0

sudo fdisk /dev/disk0

The "sudo" commands will prompt for your password, and it will not be echoed back. You may also see a warning about improper use of "sudo" and potential data loss due to "abuse" of the command.

On your GPT output you can see GPT3 (Recovery HD) followed by a gap, GPT4 (Windows EFI - this should not be there) and then your Bootcamp disk space is the current layout. You can also see it in Disk Utility if you enable Disk Utility Debug as mentioned in http://www.cultofmac.com/122623/enable-hidden-secrets-and-the-debug-menu-in-disk -utility-os-x-tips/. It will look similar to this.

The simplest and safest method is

1. Back up OSX using Time Machine - Mac Basics: Time Machine backs up your Mac - Apple Support.

2. Boot into Internet Recovery - OS X: About OS X Recovery - Apple Support.

3. Erase your internal drive and restore from the TM backup in Step 1 - OS X Yosemite: Recover your entire system.

Please be aware that TM does not backup Bootcamp partitions.

There are manual methods as well, but they require a lot more labour in Terminal. If you are curious, you can see the last section in Repairing Boot Camp after creating new partition.

Got the same problem, but I am a bit confused. When I boot in Recovery mode, the Debug option is no longer available. I can only see the attached in normal boot Disk Utility.

I suspect that disk04 is the Bootcamp partition, but I cannot erase it in Recovery mode. Would I need to reboot from an external drive?

You may want to post a new discussion to avoid confusion.

Local Recovery (Command+R) runs from Recovery HD on your internal disk, which disallows erasing the internal disk.

Boot into Internet Recovery (Command+Opt+R) and you must see a spinning globe. Use a Wired connection, it is much faster.

Reference - OS X: About OS X Recovery - Apple Support .

Please post the output of the following OSX Terminal commands

diskutil list

diskutil cs list

HERE IT IS, THANKS:

Last login: Wed Sep 9 16:39:11 on console

tonys-mbp:~ tonys$ diskutil list

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *251.0 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_CoreStorage 184.4 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Apple_CoreStorage 65.6 GB disk0s4

5: Apple_Boot Boot OS X 134.2 MB disk0s5

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS Macintosh HD *184.0 GB disk1

Logical Volume on disk0s2

FCD69AE8-54B2-4EEE-8475-F6B042E13A42

Unencrypted

/dev/disk2

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk2

1: EFI EFI 209.7 MB disk2s1

2: Apple_HFS My Passport 999.8 GB disk2s2

tonys-mbp:~ tonys$ diskutil cs list

CoreStorage logical volume groups (2 found)

|

+-- Logical Volume Group 6C2696BD-C568-4C5F-8AA0-B3E051FD8C5F

| =========================================================

| Name: Macintosh HD

| Status: Online

| Size: 184371208192 B (184.4 GB)

| Free Space: 18882560 B (18.9 MB)

| |

| +-< Physical Volume C47F4877-9A49-4D26-8778-EC9FDEC64C98

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

| | Index: 0

| | Disk: disk0s2

| | Status: Online

| | Size: 184371208192 B (184.4 GB)

| |

| +-> Logical Volume Family 388DD1AA-0ACA-4A9E-B654-F2E32103E21C

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

| Encryption Status: Unlocked

| Encryption Type: None

| Conversion Status: NoConversion

| Conversion Direction: -none-

| Has Encrypted Extents: No

| Fully Secure: No

| Passphrase Required: No

| |

| +-> Logical Volume FCD69AE8-54B2-4EEE-8475-F6B042E13A42

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

| Disk: disk1

| Status: Online

| Size (Total): 184000004096 B (184.0 GB)

| Conversion Progress: -none-

| Revertible: Yes (no decryption required)

| LV Name: Macintosh HD

| Volume Name: Macintosh HD

| Content Hint: Apple_HFS

|

+-- Logical Volume Group E9789EF6-F6FB-49D2-B09A-58AFD227050F

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

Name: disk0s4

Status: Online

Size: 65635004416 B (65.6 GB)

Free Space: 65282678784 B (65.3 GB)

|

+-< Physical Volume FAAC7458-23BD-4C8D-AB5C-1ABA9B879E0B

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

Index: 0

Disk: disk0s4

Status: Online

Size: 65635004416 B (65.6 GB)

tonys-mbp:~ tonys$

1. Backup OSX via Time Machine to an external disk.

2. Delete disk0s4 CS LVG - diskutil cs delete E9789EF6-F6FB-49D2-B09A-58AFD227050F

3. Revert disk0s2 CS LVG - diskutil cs revert FCD69AE8-54B2-4EEE-8475-F6B042E13A42

4. Merge disk0s2, disk0s3 and disk0s4 (you will lose Recovery HD temporarily) - diskutil mergePartitions jhfs+ "Macintosh HD" disk0s2 disk0s4

5. Restore from backup in step 1.

The order of the disk slices is very important in step 4. See the highlighted parts.

diskutil mergepartitions

Usage: diskutil mergePartitions [force] format name

DiskIdentifier|DeviceNode DiskIdentifier|DeviceNode

Merge two or more pre-existing partitions into one. The first disk parameter

is the starting partition; the second disk parameter is the ending partition;

this given range of two or more partitions will be merged into one.

All partitions in the range, except for the first one, must be unmountable.

All data on merged partitions other than the first will be lost; data on the

first partition will be lost as well if the "force" argument is given.

If "force" is not given, and the first partition has a resizable file system

(e.g. JHFS+), it will be grown in a data-preserving manner, even if a different

file system is specified (in fact, your file system and volume name parameters

are both ignored in this case). If "force" is not given, and the first

partition is not resizable, you will be prompted if you want to erase.

If "force" is given, the first partition is always formatted. You should

do this if you wish to reformat to a new file system type.

Merged partitions are required to be ordered sequentially on disk.

See diskutil list for the actual on-disk ordering; BSD slice identifiers

may in certain circumstances not always be in numerical order but the

top-to-bottom order given by diskutil list is always the on-disk order.

Ownership of the affected disk is required.

Example: diskutil mergePartitions JHFS+ NewName disk3s4 disk3s7

This example will merge all partitions *BETWEEN* disk3s4 and disk3s7,

preserving data on disk3s4 but destroying data on disk3s5, disk3s6,

disk3s7 and any invisible free space partitions between those disks;

disk3s4 will be grown to cover the full space if possible.

Worked like a dream. Many thanks.🙂

Please back up OS X after the restore.