Bootcamp disk issue

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Bootcamp disk issue

Hello Everyone,

I didn't install Yosemite yet (I saw Bootcamp issue related to it lately so I stayed with 10.9.5 Mavericks) but it seems that my Bootcamp was swept away. I cannot see Bootcamp disk in disk utility, it is replaced by the name disk0s3.

I didn't do anything special or using my computer lately so I don't know how the disk is corrupted.

I can't see the bootcamp icon anymore when starting my computer (Late 2013 macbook pro retina).

I'm downloading again the bootcamp installation in an USB drive so that I hope I can use the repair option from windows installation. Is it the right thing to do?

Can I use the Loner T method for repairing corrupted bootcamp after Yosemite installation (even it's not related to my problem the "symptoms are quite similar fem what I've read)?

Can you help through this, please do not hesitate to ask me more info. I have little knowledge on Mac.

I have important data for work on my Windows session and I will highly appreciate if you can help me through this.

Thanks ahead,

Jonathan

MacBook Pro (Retina, 15-inch, Late 2013), OS X Mavericks (10.9.5)

Posted on May 31, 2015 5:02 AM

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Answer 1

Loner T

Level 9

59,471 points

May 31, 2015 5:16 AM in response to MagicJonSon

Can you post the output of the following Terminal commands? We should look at the output to determine if it is a different issue or can it be solved using Testdisk and GPT Fdisk?

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.

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Answer 2

MagicJonSon Author

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May 31, 2015 5:26 AM in response to Loner T

Hello Loner T,

Here it is. Thanks

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Answer 3

Loner T

Level 9

59,471 points

May 31, 2015 6:26 AM in response to MagicJonSon

1. You do not have a Recovery HD.

2. Can you post the output of

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

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Answer 4

MagicJonSon Author

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May 31, 2015 6:28 AM in response to Loner T

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Answer 5

Loner T

Level 9

59,471 points

May 31, 2015 6:32 AM in response to MagicJonSon

The Recovery HD is usually 1269536/1269544 sectors. You have a gap between OS X and Windows 263768. Can you recall what was done to any of partitions or any sizing changes?

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Answer 6

MagicJonSon Author

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May 31, 2015 6:37 AM in response to Loner T

I haven't been using my windows partition since 2 or 3 weeks, i mostly do some database operations on windows. I didn't change the size of the disk either.

Do you think i can recover some of my data stored ?

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Answer 7

Loner T

Level 9

59,471 points

May 31, 2015 6:48 AM in response to MagicJonSon

It may be possible. Please download the following two utilities

Testdisk is available at http://www.cgsecurity.org/wiki/TestDisk_Step_By_Step.

GPT Fdisk is available at http://sourceforge.net/projects/gptfdisk/.

Start Terminal from Applications -Utilities -> Terminal and run Testdisk from the directory where it is downloaded. For example, I have it in the Downloads directory,

ls ~/Downloads/testdisk-7.0-WIP/testdisk

/Users/MyName/Downloads/testdisk-7.0-WIP/testdisk

and I run it as

sudo ~/Downloads/testdisk-7.0-WIP/testdisk /dev/rdisk0

You should see a UI similar to https://imgur.com/a/PjmnK .

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Answer 8

MagicJonSon Author

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May 31, 2015 2:00 PM in response to Loner T

Hello,

I just finished the deeper search feature of the program on the 'MS Data' disk.

I restarted my computer and can't see my bootcamp session still.. 😟

What should i do next? is there any steps I missed?

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Answer 9

Loner T

Level 9

59,471 points

May 31, 2015 2:05 PM in response to MagicJonSon

Testdisk lists viable partitions. It does not fix anything. Please re-run it and when you get to a list of recoverable partitions (in Quick Search) post a screen shot.

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Answer 10

MagicJonSon Author

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Jun 1, 2015 6:34 AM in response to Loner T

Hello,

i've done the quick search (below screenshot) and the deeper search as well on the MS Data disk (second screenshot. Does it help?

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Answer 11

Loner T

Level 9

59,471 points

Jun 1, 2015 7:43 AM in response to MagicJonSon

This is a list of unrecoverable partitions as noted at the top. Press Return to Continue. You should get a list of partitions which can be inspected.

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Answer 12

MagicJonSon Author

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Jun 1, 2015 7:47 AM in response to Loner T

yes, here it is, why there is two MS Data sections?

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Answer 13

Loner T

Level 9

59,471 points

Jun 1, 2015 8:00 AM in response to MagicJonSon

Scroll up to the first MS Data @ 389083136 and use 'P' to list files. It seems to be the most likely candidate. The two entries indicate movement of the partition.

It should look similar to this.

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Answer 14

MagicJonSon Author

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Jun 1, 2015 8:03 AM in response to Loner T

Here we go,

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Answer 15

MagicJonSon Author

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Jun 1, 2015 8:05 AM in response to MagicJonSon

So it seems that I amended the 6th of May which is consistent by the time when the bootcamp was down. Awesome Loner T i got some hope back now (hopefully... 🙂 )

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