Repairing Boot Camp after creating new partition

Hey Christopher, I just want to say thank you very much for your solution! You saved me a lot of time! Otherwise I would have to reinstall Windows (I've done this too many times in my life already) and having to reinstall and re-download a lot of stuff that was on it.

I just want to not that I had 6 partitions because I had an installation of OS X 10.8 + this other new OS I can't tell you about, each of them with their own recovery partition. So instead of partition 5 I chose partition 6 in your instructions which worked out for me.

So again, thank you so much! These instructions will come in handy in the future.

removed because it was addressed to the wrong person (apologies!)

Hi Christoph,

I feel bad having to ask you for help, but it seems you really know your way around this problem and I am quite useless with this. If you could help me I would very very grateful.

So basically my problem is as follows. I have a MBP with bootcamp running Win8. I most ofted use Win8 so I wanted to shrink the OSX partition and increase the Bootcamp partition. I've done that before using disk utitlity without any problem, but this time it blew up in my face. I shrunk the OSX partition with the intention of going back to windows to allocate the new space to the Win8 partition, but I can no longer access it. rEFIt didn't work, although it said it had restored a syncing error, and i no longer see the bootcamp partition in my bootscreen.

I looked through the earlier posts in this thread and this is what the two sudo commands show up:

gpt show: /dev/rdisk0: mediasize=251000193024; sectorsize=512; blocks=490234752

gpt show: /dev/rdisk0: Suspicious MBR at sector 0

gpt show: /dev/rdisk0: Pri GPT at sector 1

gpt show: /dev/rdisk0: 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 98961512 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

99371152 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

100640688 242835536

343476224 146757632 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

490233856 863

490234719 32 Sec GPT table

490234751 1 Sec GPT header

and the second one:

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 - 98961512] HFS+

3: AB 1023 254 63 - 1023 254 63 [ 99371152 - 1269536] Darwin Boot

*4: 0B 1023 254 63 - 1023 254 63 [ 343476224 - 146757632] Win95 FAT-32

Can you please tell me how i should proceed?

Thanks so much,

Joost

(sorry for the double post, but I didn't reply to your post)

I suggest starting a new thread and posting the relevant information there, and then post the URL in this thread so I get a notification. This thread is too unweildy to keep track of multiple people's issues. Thanks.

Sure thing! It's here. thnx

https://discussions.apple.com/thread/5115696

Christopher,

Could you look at my thread?

https://discussions.apple.com/thread/5066076

Thanks.

Dear @Christopher Murphy,

Could you please take a look at my thread https://discussions.apple.com/thread/5141253?

Thanks in advance!

Philip

Hi Christopher, thank you so much! I ran into this problem last night, and I am not quite familiar with Termial and code, but with the help of your instruction, I were able to recover the Boot Camp partition myself. Thanks again!

Dude! You're effing amazing! I dont know who you are or what you do but I would by you a drink any day! Thank you!

I did the steps and it worked for windows allowing me to boot there, but now I cant boot to my mac partition, and only have windows now, do you know any way to fix that?

if you have a MBA mid 2013, and moved the partition(no just resized it), gdisk is just one part of the solution. You will need to boot into windows 7 install disk and click repair to fix the windows 7 mbr.

Here is a summary:

https://discussions.apple.com/thread/5167322

OK you shouldn't "do the steps" that are meant for someone else's problem. Everyone has slightly different issues that are all related, but often take slightly different steps to fix the problem or you'll make it worse. So I suggest you start a new thread and briefly explain your setup, exactly what you've done, and include the results from:

sudo fdisk /dev/disk0

sudo gpt -r -v show disk0

Then post the URL for the new thread here.

https://discussions.apple.com/thread/5167502

Hi Christopher. I hate to impose on the kindness you're showing everyone, but I've got the same issue, and have created a thread with the output of the two commands you asked for. Hoping you can take a look. Thanks!

https://discussions.apple.com/thread/5174560

Hi again, Christopher. Since I'm imposing anyway, I added to the same thread the results from my MBP. The first one was our iMac. They look pretty similar, other than the differing disk sizes, but I'd be massively grateful for your guidance on both.

Thanks again. Matt