Want to highlight a helpful answer? Upvote!

Did someone help you, or did an answer or User Tip resolve your issue? Upvote by selecting the upvote arrow. Your feedback helps others! Learn more about when to upvote >

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

1011iData Author

Level 1

4 points

Boot Camp missing after upgrade

Odd that I waited so long to upgrade and Apple still hasn't fixed this. I wasn't even aware of this being an issue until I decided to use up my bandwidth and download the upgrade. Any help on how to get my Windows Back? A few work utilities are PC only.

MyMac:~ MyMac$ diskutil list

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *750.2 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_CoreStorage 719.0 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Microsoft Basic Data 20.3 GB disk0s4

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS My Pro *718.6 GB disk1

Logical Volume on disk0s2

B1482D1B-4399-47EA-8174-8D36F1B49DCF

Unlocked Encrypted

MyMac:~ MyMac$ diskutil cs list

CoreStorage logical volume groups (1 found)

+-- Logical Volume Group EAB54317-E0B3-40F2-8582-D28246F7C5DA

=========================================================

Name: My Pro

Status: Online

Size: 718999998464 B (719.0 GB)

Free Space: 18960384 B (19.0 MB)

+-< Physical Volume 2277B92E-D7C8-4D20-86A6-44F1C27576FA

| ----------------------------------------------------

| Index: 0

| Disk: disk0s2

| Status: Online

| Size: 718999998464 B (719.0 GB)

+-> Logical Volume Family 63BCADCB-5D17-4C81-B3BC-742C9BC311FB

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

Encryption Status: Unlocked

Encryption Type: AES-XTS

Conversion Status: Complete

Conversion Direction: -none-

Has Encrypted Extents: Yes

Fully Secure: Yes

Passphrase Required: Yes

+-> Logical Volume B1482D1B-4399-47EA-8174-8D36F1B49DCF

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

Disk: disk1

Status: Online

Size (Total): 718628716544 B (718.6 GB)

Conversion Progress: -none-

Revertible: Yes (unlock and decryption required)

LV Name: My Pro

Volume Name: My Pro

Content Hint: Apple_HFS

Posted on Apr 27, 2015 6:40 PM

25 replies

Loner T

Level 9

59,471 points

May 3, 2015 5:07 AM in response to 1011iData

Can you see the partition in Disk Utility? Do not modify it any way. This is what it should look like.

1011iData Author

Level 1

4 points

May 4, 2015 2:57 PM in response to Loner T

I see disk0s4 (greyed out)

Loner T

Level 9

59,471 points

May 4, 2015 5:41 PM in response to 1011iData

The GPT was corrected after the Testdisk run.

Can you post the output of

sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C

1011iData Author

Level 1

4 points

May 4, 2015 5:44 PM in response to Loner T

00000000 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|

00000200

Loner T

Level 9

59,471 points

May 4, 2015 7:12 PM in response to 1011iData

You will need to redo both Gdisk steps. You have used the incorrect start value in step 7 of the first set of Gdisk steps.

You have used the GPT3 end (1405976048), rather than NTFS Start value (1405976576). I must have picked the incorrect value.

1011iData Author

Level 1

4 points

May 4, 2015 7:13 PM in response to Loner T

THANK YOU!!!!

Loner T

Level 9

59,471 points

May 4, 2015 7:20 PM in response to 1011iData

Did the corrections work? If yes, please back up OS X and Windows to separate external disks.

1011iData Author

Level 1

4 points

May 16, 2015 10:38 AM in response to Loner T

Yes, I was able to boot into my Windows partition and my work tools load without any issue.

Thank you!

Backup also complete.

May 27, 2015 3:24 PM in response to Loner T

So I think I may have stumbled into this issue as well. You seem to be the expert on this issue and I was hoping you could help me. I found this thread, https://discussions.apple.com/thread/6883274which seems to be a similar issue, but I can't really follow exactly what is happening. I'm not very experienced with bootcamp.

Essentially I just did the most recent Yosemite update last night and now the "disk0s4" is showing up. I've previously use MiniTool Partition Wizard to expand my Windows hard drive. I took the Windows HD from 75 GB -> 350 GB but now disk0s4 only shows 75 GB. Any help you can offer would be greatly appreciated. I also don't have a Windows 7 install disk, or the serial number available, and really don't want to have to spend $80 on a new one.

Thanks

Loner T

Level 9

59,471 points

May 27, 2015 3:32 PM in response to tborchardt2

Can you post a new discussion and include the output of the following Terminal commands?

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.

Please download the following two utilities which can help diagnose and fix partitioning issues.

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

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

Boot Camp missing after upgrade