Bootcamp missing after resizing manually

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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

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Answer 1

KaiKaiser Author

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May 3, 2014 1:56 AM in response to KaiKaiser

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 100.2 GB disk0s4

i hope someone replies soon 😟

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Answer 2

Loner T

Level 9

59,471 points

May 3, 2014 4:49 AM in response to KaiKaiser

KaiKaiser wrote:

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

Can you use fdisk -e and change Partition number 4 to type x'07' and flag it as bootable?

There are quite a few examples of how to do it or if you are comfortable with using Unix man pages, then you can execute man fdisk in a Terminal window on your Mac and use setpid and flag commands. You will also have to use write and reboot, if required, after you make changes using fdisk.

You may still get Missing OS errors, but these can be fixed using Windows Recovery Console.

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Answer 3

KaiKaiser Author

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May 3, 2014 5:27 AM in response to Loner T

Loner T wrote:

Can you use fdisk -e and change Partition number 4 to type x'07' and flag it as bootable?

There are quite a few examples of how to do it or if you are comfortable with using Unix man pages, then you can execute man fdisk in a Terminal window on your Mac and use setpid and flag commands. You will also have to use write and reboot, if required, after you make changes using fdisk.

You may still get Missing OS errors, but these can be fixed using Windows Recovery Console.

Could you be a bit more specific with what to do Loner T? I'm not that well known with ios.

Did you mean for me to type those into the terminal as commands?

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Answer 4

Loner T

Level 9

59,471 points

May 3, 2014 6:28 AM in response to KaiKaiser

Please look here...

https://discussions.apple.com/thread/5087650?answerId=22243032022#22243032022

In Mac OS X Terminal, do the following

sudo fdisk -e /dev/disk0

print

setpid 4

07

flag

print

write

Now reboot. Check if holding the ALT/Option key will show the Bootcamp partition. If it does, MAC OS X is now happy, but you may have to still use Windows Recovery Console.

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Answer 5

KaiKaiser Author

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May 3, 2014 6:32 AM in response to Loner T

thanks for that quick reply, i'll be doing that right away and will tell you dear sir how it went.

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Answer 6

KaiKaiser Author

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May 3, 2014 6:43 AM in response to Loner T

Sir, windows showed up at start when holding alt(option) but when i clicked on it for it to start up it gave me an error message => Missing Operating System.

I'm really sorry for not knowing what to do.

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Answer 7

KaiKaiser Author

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May 3, 2014 7:02 AM in response to Loner T

Alright sorry for not reading the link you gave me. So all i have to do now is just use Windows recovery console and everything should be back to normal am I right?

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Answer 8

Loner T

Level 9

59,471 points

May 3, 2014 7:31 AM in response to KaiKaiser

It depends on how much "damage" was done during resizing. It is also possible to re-install Windows (without losing your personal data), but I would recommend the Windows Recovery console first and you may need to use fixmbr or similar tools.

http://windows.microsoft.com/en-us/windows7/products/features/startup-repair

http://support.microsoft.com/kb/927392

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Answer 9

KaiKaiser Author

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May 3, 2014 8:21 AM in response to Loner T

Alright, I'm back tried using windows recovery tools but it failed to repair it with startup repair. Gonna try something different maybe. Thanks for the reply and answer good sir 🙂

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Answer 10

Loner T

Level 9

59,471 points

May 3, 2014 8:50 AM in response to KaiKaiser

You last recourse may be a re-install of the Windows OS only. If that does not work, I assume you have a backup of your Bootcamp partition. Do you want to consider trying WinClone?

https://twocanoes.com/winclone/

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Answer 11

KaiKaiser Author

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May 3, 2014 9:01 AM in response to Loner T

bad thing is, i had a backup but my external hd got messed up and i dont know what happened to it. winclone is quite pricey tbh. Startup Repair said that the boot something was corrupted. does that ring a bell?

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Answer 12

KaiKaiser Author

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May 3, 2014 9:09 AM in response to Loner T

i just read about something typing in to the command prompt within the Windows Recovery Console, like this

bootrec.exe /fixmbr

bootrec.exe /fixboot

would this help?

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Answer 13

Loner T

Level 9

59,471 points

May 3, 2014 10:14 AM in response to KaiKaiser

If you can recall the message from 'Startup Repair', it may help in deciding which option(s) of bootrec.exe to use.

In the Microsoft KB 927392 link I mentioned previously, you can see the list of qualifiers supported by bootrec.exe.

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Answer 14

KaiKaiser Author

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May 3, 2014 10:53 AM in response to Loner T

Yeah i saw that, something about the boot disc sector is corrupted i think. And its hard disk drive was actually x: instead of the natural c:. I tried getting to c: drive but told me that it needs to be reformatted so i didnt do it.

i also noticed this

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: 07 1023 254 63 - 1023 254 63 [ 780976128 - 195796992] HPFS/QNX/AUX

the one with the bold letters

EDITED: made me wonder why the startup repair couldnt find the windows 7 OS told myself yeah, thats whats been missing and trying to repair it wont be that easy.

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Answer 15

Loner T

Level 9

59,471 points

May 3, 2014 1:17 PM in response to KaiKaiser

I would suggest that you backup the Bootcamp partition, even if Windows cannot be booted. MAC OS X can read Windows partition (it should show up mounted in Finder) and you can see files within the partition. This backup of an unbootable Windows is much better than no backup at all.

Once you have this backup, you should try and reinstall (including reformatting the C: drive). Because of the resizing work done on the disk, Windows is unable to find NTFS information to allow it's use.

On the issue of '07' vs '0C', you can use the fdisk -e command to change it back to 0C, but that will not address

the disk corruption issue. Diskutil list and gpt will still show the disk as Microsoft Basic Data because they use the GPT rather than MBR. The partition types in GPT should be the same.

There is another utility called Testdisk, if you want to spend time looking for deleted partition information.

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