Bootcamp no longer boots after creating third partition

I know only Toshiro (Mifune...) 😁.

Your configuration is non-standard. We can try to fix it. Remember that ELC will create it's own Recovery HD.

Please 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.

According to the Boot Camp documentation you can not add a third partition when using Boot Camped Windows.I would reformat and start again by reinstalling OSX and Windows following the Boot Camp instructions.

Please post the the out of

sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C

This will show the partition header of your Bootcamp partition.

If you are able to see the Bootcamp volume and files in it, then run the following steps and test. Please ignore the i386 MBR error, but not any others.

sudo fdisk -e /dev/disk0

p

setpid 4

07

flag 4

p

w

y

Reboot and test.

Please make sure you have good backup of each OS. Since you no longer have Recovery HD, you may want to install OS X ELC on an external disk with Recovery HD, so you can boot from it, if you have issues with the internal disk.

How to install OS X on an external drive connected to your Mac - Apple Support

OS X: About OS X Recovery - Apple Support

Share files between two computers with target disk mode - Apple Support

Hi, I am new here and I have the exact same problem but I wasn't able to make it work with your response, could you please help me to find a solution ?

I got this on the terminal :

MacBook-Pro-de-Augustin:~ augustinduthoit$ sudo fdisk -e /dev/disk0

Password:

fdisk: could not open MBR file /usr/standalone/i386/boot0: No such file or directory

Enter 'help' for information

fdisk: 1> p

Disk: /dev/disk0 geometry: 30515/255/63 [490234752 sectors]

Offset: 0 Signature: 0xAA55

Starting Ending

#: id cyl hd sec - cyl hd sec [ start - size]

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

1: EE 1023 254 63 - 1023 254 63 [ 1 - 409639] <Unknown ID>

2: AC 1023 254 63 - 1023 254 63 [ 409640 - 398713016] <Unknown ID>

3: AB 1023 254 63 - 1023 254 63 [ 399122656 - 1269536] Darwin Boot

4: 0C 1023 254 63 - 1023 254 63 [ 400392192 - 89841664] Win95 FAT32L

fdisk: 1> setpid 4

Starting Ending

#: id cyl hd sec - cyl hd sec [ start - size]

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

4: 0C 1023 254 63 - 1023 254 63 [ 400392192 - 89841664] Win95 FAT32L

Partition id ('0' to disable) [0 - FF]: [C] (? for help) 07

fdisk:*1> flag 4

Partition 4 marked active.

fdisk:*1> p

Disk: /dev/disk0 geometry: 30515/255/63 [490234752 sectors]

Offset: 0 Signature: 0xAA55

Starting Ending

#: id cyl hd sec - cyl hd sec [ start - size]

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

1: EE 1023 254 63 - 1023 254 63 [ 1 - 409639] <Unknown ID>

2: AC 1023 254 63 - 1023 254 63 [ 409640 - 398713016] <Unknown ID>

3: AB 1023 254 63 - 1023 254 63 [ 399122656 - 1269536] Darwin Boot

*4: 07 1023 254 63 - 1023 254 63 [ 400392192 - 89841664] HPFS/QNX/AUX

fdisk:*1> w

fdisk: /dev/disk0: Operation not permitted

You are on OSX ELC. You will need to disable System Integrity protection temporarily. Boot into Local Recovery (Command+R) and type csrutil disable. After you verify that Windows is working, you can re-enable SIP.

#I am sorry but which option do you choose when you boot in Recovery from :

• Restore your Mac from a Time Machine backup.
• Verify and repair connected drives using Disk Utility.
• Check your Internet connection or get help online using Safari.
• Install or reinstall OS X.

Sorry for the trouble :/

#Just find out how to access to the terminal in Recovery Mode

Thanks a lot Loner T !!! You are really good 😉 Works like a charm ! Thank you

Hi there, I read this post and I'm looking forward to resolve the same trouble I have got... Maybe Loner T you can help me with that it will be cool!

Here my data

Last login: Wed Jan 20 12:56:01 on ttys000

macs-MacBook-Pro:~ mac$ diskutil list

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *251.0 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_CoreStorage Untitled 189.1 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Microsoft Basic Data BOOTCAMP 61.0 GB disk0s4

/dev/disk1 (internal, virtual):

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS Untitled +188.8 GB disk1

Logical Volume on disk0s2

DD8C6E03-AEFE-448B-901A-C27149BAEEF3

Unencrypted

macs-MacBook-Pro:~ mac$ diskutil cs list

CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group CDE4E018-1D46-4831-A472-631A1FE2AE2D

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

Name: Untitled

Status: Online

Size: 189141184512 B (189.1 GB)

Free Space: 18882560 B (18.9 MB)

|

+-< Physical Volume C9C66FEF-6019-4C93-B2D1-7CF1D924528D

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

| Index: 0

| Disk: disk0s2

| Status: Online

| Size: 189141184512 B (189.1 GB)

|

+-> Logical Volume Family 86A13B78-1B2C-4413-8636-8BDB32E5F08F

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

Encryption Type: None

|

+-> Logical Volume DD8C6E03-AEFE-448B-901A-C27149BAEEF3

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

Disk: disk1

Status: Online

Size (Total): 188769980416 B (188.8 GB)

Revertible: Yes (no decryption required)

LV Name: Untitled

Volume Name: Untitled

Content Hint: Apple_HFS

macs-MacBook-Pro:~ mac$ sudo gpt -vv -r show /dev/disk0

Password:

Sorry, try again.

Password:

Sorry, try again.

Password:

gpt show: /dev/disk0: mediasize=251000193024; sectorsize=512; blocks=490234752

gpt show: /dev/disk0: Suspicious MBR at sector 0

gpt show: /dev/disk0: Pri GPT at sector 1

gpt show: /dev/disk0: Sec GPT at sector 490234751

start size index contents

0 1 MBR

1 1 Pri GPT header

2 32 Pri GPT table

34 6

40 409600 1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

409640 369416376 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

369826016 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

371095552 119138304 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

490233856 863

490234719 32 Sec GPT table

490234751 1 Sec GPT header

macs-MacBook-Pro:~ mac$ sudo fdisk /dev/disk0

Disk: /dev/disk0 geometry: 30515/255/63 [490234752 sectors]

Signature: 0xAA55

Starting Ending

#: id cyl hd sec - cyl hd sec [ start - size]

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

1: EE 1023 254 63 - 1023 254 63 [ 1 - 409639] <Unknown ID>

2: AC 1023 254 63 - 1023 254 63 [ 409640 - 369416376] <Unknown ID>

3: AB 1023 254 63 - 1023 254 63 [ 369826016 - 1269536] Darwin Boot

4: 0C 1023 254 63 - 1023 254 63 [ 371095552 - 119138304] Win95 FAT32L

macs-MacBook-Pro:~ mac$

Please post the output of

sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C

Dude thanks for answering I appreciate

Last login: Wed Jan 20 13:01:12 on ttys000

macs-MacBook-Pro:~ mac$ sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C

Password:

00000000 eb 52 90 4e 54 46 53 20 20 20 20 00 02 08 00 00 |.R.NTFS .....|

00000010 00 00 00 00 00 f8 00 00 3f 00 ff 00 00 78 1e 16 |........?....x..|

00000020 00 00 00 00 80 00 80 00 ff e7 19 07 00 00 00 00 |................|

00000030 00 00 0c 00 00 00 00 00 02 00 00 00 00 00 00 00 |................|

00000040 f6 00 00 00 01 00 00 00 07 94 7b c4 ae 7b c4 d2 |..........{..{..|

00000050 00 00 00 00 fa 33 c0 8e d0 bc 00 7c fb 68 c0 07 |.....3.....|.h..|

00000060 1f 1e 68 66 00 cb 88 16 0e 00 66 81 3e 03 00 4e |..hf......f.>..N|

00000070 54 46 53 75 15 b4 41 bb aa 55 cd 13 72 0c 81 fb |TFSu..A..U..r...|

00000080 55 aa 75 06 f7 c1 01 00 75 03 e9 dd 00 1e 83 ec |U.u.....u.......|

00000090 18 68 1a 00 b4 48 8a 16 0e 00 8b f4 16 1f cd 13 |.h...H..........|

000000a0 9f 83 c4 18 9e 58 1f 72 e1 3b 06 0b 00 75 db a3 |.....X.r.;...u..|

000000b0 0f 00 c1 2e 0f 00 04 1e 5a 33 db b9 00 20 2b c8 |........Z3... +.|

000000c0 66 ff 06 11 00 03 16 0f 00 8e c2 ff 06 16 00 e8 |f...............|

000000d0 4b 00 2b c8 77 ef b8 00 bb cd 1a 66 23 c0 75 2d |K.+.w......f#.u-|

000000e0 66 81 fb 54 43 50 41 75 24 81 f9 02 01 72 1e 16 |f..TCPAu$....r..|

000000f0 68 07 bb 16 68 70 0e 16 68 09 00 66 53 66 53 66 |h...hp..h..fSfSf|

00000100 55 16 16 16 68 b8 01 66 61 0e 07 cd 1a 33 c0 bf |U...h..fa....3..|

00000110 28 10 b9 d8 0f fc f3 aa e9 5f 01 90 90 66 60 1e |(........_...f`.|

00000120 06 66 a1 11 00 66 03 06 1c 00 1e 66 68 00 00 00 |.f...f.....fh...|

00000130 00 66 50 06 53 68 01 00 68 10 00 b4 42 8a 16 0e |.fP.Sh..h...B...|

00000140 00 16 1f 8b f4 cd 13 66 59 5b 5a 66 59 66 59 1f |.......fY[ZfYfY.|

00000150 0f 82 16 00 66 ff 06 11 00 03 16 0f 00 8e c2 ff |....f...........|

00000160 0e 16 00 75 bc 07 1f 66 61 c3 a0 f8 01 e8 09 00 |...u...fa.......|

00000170 a0 fb 01 e8 03 00 f4 eb fd b4 01 8b f0 ac 3c 00 |..............<.|

00000180 74 09 b4 0e bb 07 00 cd 10 eb f2 c3 0d 0a 41 20 |t.............A |

00000190 64 69 73 6b 20 72 65 61 64 20 65 72 72 6f 72 20 |disk read error |

000001a0 6f 63 63 75 72 72 65 64 00 0d 0a 42 4f 4f 54 4d |occurred...BOOTM|

000001b0 47 52 20 69 73 20 6d 69 73 73 69 6e 67 00 0d 0a |GR is missing...|

000001c0 42 4f 4f 54 4d 47 52 20 69 73 20 63 6f 6d 70 72 |BOOTMGR is compr|

000001d0 65 73 73 65 64 00 0d 0a 50 72 65 73 73 20 43 74 |essed...Press Ct|

000001e0 72 6c 2b 41 6c 74 2b 44 65 6c 20 74 6f 20 72 65 |rl+Alt+Del to re|

000001f0 73 74 61 72 74 0d 0a 00 8c a9 be d6 00 00 55 aa |start.........U.|

00000200

macs-MacBook-Pro:~ mac$