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KaiKaiser Author

Level 1

0 points

Bootcamp missing after resizing manually

I know i have seen many threads, discussions about this kind of problem. Sorry if this is posted in here if its the wrong place I mean.

Well I did some reading and wasnt so sure about going further than what I've seen was successful for others (scared to damage or lose any files on my bootcamp).

I did resize it once, and it was successful, but this time it just suddenly turned to a disk0s4 and has an amount of the very first partition I had for the bootcamp (before resizing it successfully)

Thing is I'm not that confident without proper help or guide in repairing and any help would be greatly appreciated. I'm online this very moment and day I just want to wrap this up as I won't be able to sleep knowing that my sister's thesis report are in that bootcamp.

Here is so far what i have done.

gpt show: disk0: mediasize=500107862016; sectorsize=512; blocks=976773168

gpt show: disk0: Suspicious MBR at sector 0

gpt show: disk0: Pri GPT at sector 1

gpt show: disk0: Sec GPT at sector 976773167

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 392666144 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

393075784 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

394345320 386630808

780976128 195796992 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

976773120 15

976773135 32 Sec GPT table

976773167 1 Sec GPT header

Disk: /dev/disk0 geometry: 60801/255/63 [976773168 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: AF 1023 254 63 - 1023 254 63 [ 409640 - 392666144] HFS+

3: AB 1023 254 63 - 1023 254 63 [ 393075784 - 1269536] Darwin Boot

4: 0C 1023 254 63 - 1023 254 63 [ 780976128 - 195796992] Win95 FAT32L

MacBook Pro, Mac OS X (10.7.5)

Posted on May 3, 2014 12:08 AM

87 replies

Loner T

Level 9

59,513 points

May 4, 2014 12:44 PM in response to KaiKaiser

Can you add the following to the MBR (fdisk -e)?

4: 0C 1023 254 63 - 1023 254 63 [ 394345320 - 195796992] Win95 FAT32L

and flag it for bootability?

Can you also post the gpt and fdisk output after you do this?

KaiKaiser Author

Level 1

0 points

May 4, 2014 12:49 PM in response to Loner T

How am i going to add that one? ill post it of course

Loner T

Level 9

59,513 points

May 4, 2014 12:51 PM in response to KaiKaiser

KaiKaiser wrote:

How am i going to add that one? ill post it of course

Using sudo fdisk -e /dev/disk0 .

KaiKaiser Author

Level 1

0 points

May 4, 2014 1:03 PM in response to Loner T

like this?

fdisk: 1> setpid 4

Starting Ending

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

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

4: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

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

is it this that i have to change?

Loner T

Level 9

59,513 points

May 4, 2014 1:15 PM in response to KaiKaiser

Partition id is either '0C' or '07'.

Cylinder/Head/Sector should have defaults of 1023/254/63 in both Starting and Ending columns.

Start

394345320

End

195796992

KaiKaiser Author

Level 1

0 points

May 4, 2014 1:25 PM in response to Loner T

Loner T wrote:

Partition id is either '0C' or '07'.

Cylinder/Head/Sector should have defaults of 1023/254/63 in both Starting and Ending columns.

i changed the partition id, sorry i have no idea how to change the cylinder/head/sector

Start

394345320

End

195796992

with start and end am i going to use gdisk again?

Loner T

Level 9

59,513 points

May 4, 2014 1:36 PM in response to KaiKaiser

KaiKaiser wrote:

Start

394345320

End

195796992

with start and end am i going to use gdisk again?

This is all done in fdisk. Once you do the write (similar to the setup you did for changing Partition id), post your fdisk output before any further steps. Cylinder/Head/Sector should be already populated with defaults.

KaiKaiser Author

Level 1

0 points

May 4, 2014 1:47 PM in response to Loner T

here it is

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

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

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

2: AF 1023 254 63 - 1023 254 63 [ 409640 - 392666144] HFS+

3: AB 1023 254 63 - 1023 254 63 [ 393075784 - 1269536] Darwin Boot

4: 0C 1023 254 63 - 1023 254 63 [ 394345320 - 195796992] Win95 FAT32L

fdisk:*1>

Loner T

Level 9

59,513 points

May 4, 2014 2:07 PM in response to KaiKaiser

Can you also post the gpt output?

Can you do 'setpid 4', flag, write and reboot? Now see

1. if ALT/Option key will show up the Windows as bootable, and,

2. Does the BOOTCAMP volume mount and is it accessible from OS X Finder?

KaiKaiser Author

Level 1

0 points

May 4, 2014 2:17 PM in response to Loner T

shows up as bootable, but the bootcamp volume remains disk0s4 and is not accessible on OS X finder.

Tried to mount it but to no effect. I'll see to your answers maybe later and then give it a shot again, right now i gotta sleep its 5am already. Thanks for the time and help dear sir

Loner T

Level 9

59,513 points

May 4, 2014 2:21 PM in response to KaiKaiser

The Bootcamp volume is not expected to change with what we have done so far. It should stay disk0s4, and diskutil should confirm that.

PLease look at Console log and in DU, if you enable debug mode, we can see what is the volume and file system type.

We can take it up once you have had some sleep. 😉

KaiKaiser Author

Level 1

0 points

May 4, 2014 10:13 PM in response to Loner T

And i'm back. So what are the next steps/instructins to be done?

Loner T

Level 9

59,513 points

May 5, 2014 3:00 AM in response to KaiKaiser

In the Microsoft link in this thread, bootrec.exe /scanos using Windows recovery seems to be the next logical step.

It would be good to record diskutil list, gpt and fdisk outputs here.

KaiKaiser Author

Level 1

0 points

May 5, 2014 3:07 AM in response to Loner T

here you go

Kanes-MacBook-Pro:~ KKK$ diskutil list

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *500.1 GB disk0

1: EFI 209.7 MB disk0s1

2: Apple_HFS Macintosh HD 201.0 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Microsoft Basic Data 298.2 GB disk0s4

Kanes-MacBook-Pro:~ KKK$

Kanes-MacBook-Pro:~ KKK$ sudo gdisk /dev/disk0

Password:

GPT fdisk (gdisk) version 0.8.10

Warning: Devices opened with shared lock will not have their

partition table automatically reloaded!

Partition table scan:

MBR: hybrid

BSD: not present

APM: not present

GPT: present

Found valid GPT with hybrid MBR; using GPT.

Command (? for help): print

Disk /dev/disk0: 976773168 sectors, 465.8 GiB

Logical sector size: 512 bytes

Disk identifier (GUID): 0000712E-572C-0000-B33C-000088620000

Partition table holds up to 128 entries

First usable sector is 34, last usable sector is 976773134

Partitions will be aligned on 8-sector boundaries

Total free space is 21 sectors (10.5 KiB)

Number Start (sector) End (sector) Size Code Name

1 40 409639 200.0 MiB EF00 EFI system partition

2 409640 393075783 187.2 GiB AF00 Customer

3 393075784 394345319 619.9 MiB AB00 Recovery HD

4 394345320 976773119 277.7 GiB 0700 Microsoft basic data

Kanes-MacBook-Pro:~ KKK$ sudo fdisk -e /dev/disk0

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

Enter 'help' for information

fdisk: 1> print

Disk: /dev/disk0 geometry: 60801/255/63 [976773168 sectors]

Offset: 0 Signature: 0xAA55

Starting Ending

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

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

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

2: AF 1023 254 63 - 1023 254 63 [ 409640 - 392666144] HFS+

3: AB 1023 254 63 - 1023 254 63 [ 393075784 - 1269536] Darwin Boot

*4: 0C 1023 254 63 - 1023 254 63 [ 394345320 - 195796992] Win95 FAT32L

KaiKaiser Author

Level 1

0 points

May 5, 2014 4:17 AM in response to Loner T

I just came back from the Windows Recovery console, its still not getting it repaired with Startup repair.

Same issue yet again sir, its still in X: even tried using command prompt still on X: tried bootrec.exe /scanos but found nothing compatible with it.

Bootcamp missing after resizing manually