Windows doesn't work after resizing partition in OSX Disk Utilities

Hello,


I tried to reduce the OSX partition size in order to increase the Windows 7 partition size and have been unable to boot into windows ever since. Bootcamp is greyed out in Disk Utilities as disk0s3, and I an unable to mount Bootcamp in OSX.


I've tried using the sudo fdisk -e /dev/disk0 tutorial I've seen on here as well, and that allowed me to see Windows as an option when I start the computer and hold ALT. However, I get the "Missing Operating System" error.


After that I tried running System Repair (including using diskpart to select the partition) but no luck with that. I really don't want to restore the Windows partition and lose files, so does anyone know what I can do to save my files and get windows to boot?

MacBook, OS X Mavericks (10.9.5)

Posted on Aug 26, 2016 3:00 PM

Reply
11 replies

Aug 26, 2016 4:46 PM in response to 410Greg

Please post the output of the following OS X Terminal commands.


diskutil list

diskutil cs list

sudo gpt -vv -r show /dev/disk0

sudo fdisk /dev/disk0

sudo dd if=/dev/rdisk0s3 count=1 2>/dev/null | hexdump -C


The "sudo" commands will prompt you for your password, which will not be echoed back to you.


What is the year/model is your Mac?

What is the version of Windows?

Aug 26, 2016 4:31 PM in response to Loner T

My Mac is a late 2009 13" Macbook and it's on OSX 10.9.5. And I'm using Windows 7.

Here's the output for the Terminal commands


diskutil list

#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *250.1 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_HFS Macintosh HD 194.7 GB disk0s2
3: Microsoft Basic Data 55.0 GB disk0s3


diskutil cs list
No CoreStorage logical volume groups found


sudo gpt -vv -r show /dev/disk0

gpt show: /dev/disk0: mediasize=250059350016; sectorsize=512; blocks=488397168

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

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

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

gpt show: /dev/disk0: Sec GPT at sector 488397167

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 380305368 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

380715008 262144

380977152 107419648 3 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

488396800 335

488397135 32 Sec GPT table

488397167 1 Sec GPT header


sudo fdisk /dev/disk0

Disk: /dev/disk0 geometry: 30401/255/63 [488397168 sectors]

Signature: 0xAA55

Starting Ending

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

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

1: 07 0 0 1 - 1023 254 63 [ 0 - 0] HPFS/QNX/AUX

2: EE 0 0 2 - 25 127 14 [ 1 - 409639] <Unknown ID>

3: AF 25 127 15 - 1023 254 63 [ 409640 - 380305368] HFS+

*4: 07 1023 254 63 - 1023 254 63 [ 380977152 - 107419648] HPFS/QNX/AUX


sudo dd if=/dev/rdisk0s3 count=1 2>/dev/null | hexdump -C

00000000 a0 17 18 1d 21 0b 14 24 11 01 8f 02 a0 1c 1b 1e |....!..$........|

00000010 27 24 15 13 13 11 a0 15 18 26 2d cd d6 6b 7c e2 |'$.......&-..k|.|

00000020 62 61 60 5e 6d 63 69 71 79 78 e0 64 62 5c 6a 6b |ba`^mciqyx.db\jk|

00000030 72 75 7e e7 70 73 6e 68 61 5b 61 50 64 6e 7b 7b |ru~.psnha[aPdn{{|

00000040 7b 78 63 3a 87 96 0d 07 06 0d 1c 21 00 99 14 0c |{xc:.......!....|

00000050 9e 18 15 1b 1f 23 13 1f 26 9e 0e 02 9e 1a 18 1a |.....#..&.......|

00000060 24 18 25 06 09 02 95 03 00 07 14 22 1c 49 f1 e0 |$.%........".I..|

00000070 62 63 6d 70 6d 6e 74 e0 62 61 62 63 5f 6c 60 5b |bcmpmnt.babc_l`[|

00000080 e0 66 70 e1 6c 71 70 6c 67 61 59 66 66 71 77 78 |.fp.lqplgaYffqwx|

00000090 7c 79 6f 59 41 00 8b 9d 1a 20 18 24 9d 0b 9e 12 ||yoYA.... .$....|

000000a0 04 9b 17 1b 20 04 11 1b 21 9b 0f 02 9f 19 19 1b |.... ...!.......|

000000b0 22 15 1f 1e 1f 1a 10 9e 19 1b 1f 26 18 24 29 29 |"..........&.$))|

000000c0 8b 03 11 2b cd d6 7b f2 e0 65 67 69 6a 60 56 66 |...+..{..egij`Vf|

000000d0 5e 7a e3 75 e5 6c 6b 6a 67 65 5d 70 72 e0 66 6a |^z.u.lkjge]pr.fj|

000000e0 6c 6d 68 5e 60 4d 46 23 8a 1b 42 74 cb b0 ab 1e |lmh^`MF#..Bt....|

000000f0 0b 9e 19 1c 20 06 0f 18 1d 18 0c 01 9d 1a 17 1b |.... ...........|

00000100 23 13 20 9e 20 9d 10 00 9a 1b 1f 23 12 23 20 00 |#. . ......#.# .|

00000110 8c 9b 19 17 1a 21 26 6d fc ec 77 e0 63 60 5c 75 |.....!&m..w.c`\u|

00000120 6e 6a 68 6f 7a e0 61 5d 7b 72 6a 63 69 78 e4 6b |njhoz.a]{rjcix.k|

00000130 6e 71 70 6a 5d 6c 62 59 6f 74 e3 6a 66 59 5a b8 |nqpj]lbYot.jfYZ.|

00000140 a6 14 09 0b 11 17 1c 23 09 9e 0f 03 9d 1a 17 1a |.......#........|

00000150 1f 29 18 1d 1e 19 10 9f 18 18 1b 1f 24 1a 26 12 |.)..........$.&.|

00000160 03 95 0c 07 00 03 11 24 2d 4c fc f5 e0 60 62 66 |.......$-L...`bf|

00000170 6e 73 75 7e e4 67 65 60 5d 6e 62 57 76 e7 79 e4 |nsu~.ge`]nbWv.y.|

00000180 6a 70 70 6c 63 5c 72 6b 6a 71 7b e1 61 5c 6a 57 |jpplc\rkjq{.a\jW|

00000190 45 9d 02 00 06 10 19 25 05 93 9a 0a 01 9c 1a 1a |E......%........|

000001a0 20 0e 16 1b 1b 18 0e 00 9a 19 1b 1e 23 12 21 07 | ...........#.!.|

000001b0 9d 10 07 9f 1b 1a 20 10 20 11 1c 26 0f a0 1c 2e |...... . ..&....|

000001c0 c7 d2 5f ef e1 67 69 67 66 60 58 61 59 7c ea 76 |.._..gigf`XaY|.v|

000001d0 e2 67 6b 69 62 5f 77 74 76 e0 68 6d 70 6a 65 5e |.gkib_wtv.hmpje^|

000001e0 65 4d 40 32 35 cf d5 63 cd bd b5 2d 06 00 9d 1d |eM@25..c...-....|

000001f0 20 0c 15 1a 17 14 0a 9f 1a 17 1b 1e 22 13 20 06 | ...........". .|

00000200

Aug 26, 2016 5:43 PM in response to 410Greg

You do not have a Recovery HD, so the tutorial does not apply to you. Was your Recovery HD deleted? Mavericks normally has a Recovery HD.


You may need to use Testdisk and look for a 'lost' NTFS partition. Please download Testdisk ( http://www.cgsecurity.org/wiki/TestDisk_Download ) and use After changing my mac partition, bootcamp can't find windows anymore! as a UI reference to start a Testdisk scan.

Aug 27, 2016 5:36 PM in response to Loner T

Sorry for the late reply, I just got back to being able to work on the laptop. But I've identified the partition with my files it is this one here.User uploaded file

I've begun following the steps in the tutorial but after typing the correct offsets (step 7-9), I pressed P and there was no changes made. What should I do now? Here's a picture.User uploaded file

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Windows doesn't work after resizing partition in OSX Disk Utilities

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