Yosemite Upgrade broke bootcamp partition

Guidos-MacBook-Air:~ Guido$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *121.3 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage                         85.0 GB    disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
   4:       Microsoft Basic Data                         20.1 GB    disk0s4
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           *84.6 GB    disk1
                                 Logical Volume on disk0s2
                                 948AB503-78BD-4568-A9A9-3010F2854D67
                                 Unlocked Encrypted
Guidos-MacBook-Air:~ Guido$ diskutil cs list
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group 25B9905F-C591-422E-93DE-4176AFF7A4E4
    =========================================================
    Name:         Macintosh HD
    Status:       Online
    Size:         84999999488 B (85.0 GB)
    Free Space:   6623232 B (6.6 MB)
    |
    +-< Physical Volume 9C1C1B3A-BE9F-49F5-A18C-223152F45FE8
    |   ----------------------------------------------------
    |   Index:    0
    |   Disk:     disk0s2
    |   Status:   Online
    |   Size:     84999999488 B (85.0 GB)
    |
    +-> Logical Volume Family D0A03664-59A9-4522-AA5D-0FF8BB3B3E07
        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 948AB503-78BD-4568-A9A9-3010F2854D67
            Disk:                  disk1
            Status:                Online
            Size (Total):          84641054720 B (84.6 GB)
            Conversion Progress:   -none-
            Revertible:            Yes (unlock and decryption required)
            LV Name:               Macintosh HD
            Volume Name:           Macintosh HD
            Content Hint:          Apple_HFS
Guidos-MacBook-Air:~ Guido$ sudo gpt -vv -r show /dev/disk0
WARNING: Improper use of the sudo command could lead to data loss
or the deletion of important system files. Please double-check your
typing when using sudo. Type "man sudo" for more information.
To proceed, enter your password, or type Ctrl-C to abort.
Password:
gpt show: /dev/disk0: mediasize=121332826112; sectorsize=512; blocks=236978176
gpt show: /dev/disk0: Suspicious MBR at sector 0
gpt show: /dev/disk0: Pri GPT at sector 1
gpt show: /dev/disk0: Sec GPT at sector 236978175
      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 166015624      2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
166425264    1269536      3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
167694800   29959728
197654528   39321600      4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
236976128       2015
236978143         32         Sec GPT table
236978175          1         Sec GPT header
Guidos-MacBook-Air:~ Guido$ sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 14751/255/63 [236978176 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: AC 1023 254 63 - 1023 254 63 [    409640 - 166015624] <Unknown ID>
3: AB 1023 254 63 - 1023 254 63 [ 166425264 -    1269536] Darwin Boot
4: 0C 1023 254 63 - 1023 254 63 [ 197654528 -   39321600] Win95 FAT32L

Here is a table with your values
GPT 3 Start
GPT 3 Size
GPT 3 End
NTFS Start
Sector Offset
NTFS Size
NTFS End
Sector Offset (MB)
166425264
1269536
167694800
167696384
1584
69279737
236976120
1
Leave your Testdisk display and start a new Terminal Window. You need to use the following steps.
If you see any error messages during the following steps, please stop and post back here with the error message. The following steps have values from your Testdisk output (and you can verify) in Steps 7 and 8.
Rebuild GPT4 using start/end offsets
Sudo gdisk /dev/rdisk0
P (print the full list of parts)
D (delete)
4 (part 4)
N (new part)
4 (part 4)
167696384 - Start offset in bytes (start point for Bootcamp part)
+69279737 - Size offset (as opposed to End offset)
0700 (Windows part type)
P (print list of all parts just to see what changes will be made)
W (Write the new GPT)
Y (Yes! really write the new GPT)
This will delete and re-write the GPT partition info for /dev/disk0s4.
Rebuild MBR to match the new GPT information thus resetting the Hybrid MBR. Use defaults for other questions (like partition codes). The only values that need modifications are the Boot flags and step 10. Accept all other defaults that Gdisk offers.
Sudo gdisk /dev/disk0
P (Print list of parts)
R (Recover)
H (chooses Hybrid)
O (print current Hybrid MBR)
Partitions numbers to be hybridized: 2 3 4
Y (Good for GRUB question)
N (part 2 boot flag)
N (part 3 boot flag)
Y (part 4 boot flag make NTFS bootable partition)
O (print current Hybrid MBR)
W (Write the new MBR)
Y (Yes! write the new MBR)
Reboot
Here is sample Q&A for this section. Please notice the Press Enter/Return.
Place EFI GPT (0xEE) partition first in MBR (good for GRUB)? (Y/N): Y
Creating entry for GPT partition #2 (MBR partition #2)
Enter an MBR hex code (default AF): Press Enter/Return
Set the bootable flag? (Y/N): N
Creating entry for GPT partition #3 (MBR partition #3)
Enter an MBR hex code (default AB): Press Enter/Return
Set the bootable flag? (Y/N): N
Creating entry for GPT partition #4 (MBR partition #4)
Enter an MBR hex code (default 07): Press Enter/Return
Set the bootable flag? (Y/N): Y
Test 1 - Does Bootcamp Volume show up in Finder?
Test 2 - Can you see files in Bootcamp Volume?
Test 3 - Can you select Bootcamp in System Preferences -> Startup Disk?
Test 4 - If Test 3 is successful, select Bootcamp and Click Restart.

Similar Messages

Yosemite Upgrade Broke Bootcamp (2)

Hey Loner T,
Not sure if you can see either of these. Basially on fdisk/dev/disk0 my windows partition (parttion 4) is showing 0 start and 0 size. I was able to follow all of the steps on the original post including making a new boot partition but with the size and length=0 I can't go forward. I do know the start and size. I may have missed a step but have re-gone over them. Is there just some simple utility (gdisk) where I can just reset the start and size of this partition?
Thanks,
Bruce
<iframe src="https://www.flickr.com/photos/willowdog/15457486447/player/" width="529" height="324" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen oallowfullscreen msallowfullscreen></iframe>
<a href="https://www.flickr.com/photos/willowdog/15457486447" title="Capture by Bruce McKay, on Flickr"><img src="https://farm4.staticflickr.com/3954/15457486447_1b94dbb9c0_z.jpg" width="529" height="324" alt="Capture"></a>

Thank you.
I recreated my GPT (I hate when those go bad) and rebooted. My bootcamp partition came alive!!! I have not, yet, created a new MBR nor tried to boot into bootcamp. I thought I'd take the opportunity now to make a snapshot of my bootcamp directory. I have one from 5 weeks ago but I had new files out there that were nice to get. Thanks to you!!! Very, very many thanks to you!!!
The odd thing is when I do sudo disk /dev/disk0. I still have that big unused section at the end and bootcamp isn't loaded. Maybe that's how it works but it seems strange.
<iframe src="https://www.flickr.com/photos/willowdog/15460889597/player/" width="75" height="75" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen oallowfullscreen msallowfullscreen></iframe>
The snapshot will take a while but after that I'll do the mbr and cross fingers.
Thanks and best to you,
Bruce

Mid09 MBP: SSD/HDD upgrade, running bootcamp, partitions advice needed

Hi, I recently just put in a Vertex 2 128GB SSD into the optical bay, and still have my original 500GB 5400RPM drive.
Currently I have the 500gb split in half, for OSX and BOOTCAMP, and I am planning to reformat everything and install Lion.
Would it be a good idea to split the SSD into two partitions, and buy a new 1TB HDD 5400RPM and split that in half as well? (Is the 1TB 5400rpm drive the fastest HDD I can get right now? Which brand?)
I plan to do some light gaming on the bootcamp side, and produce music/use Logic Pro on OSX.
How else could I split the partitions for maximum optimization? OSX/Bootcamp are equally important. Thank you for your time.

The SSD should go into the former HD spot and the HD go into the optical or you'll have problems.
See BMer over at MacOwnersSupportGroup, he's into that.
We don't deal with unauthorized modifications here.

Is it safe to install yosemite on a bootcamp partition

So if anything goes wrong you can launch up osx mavericks again.
My specifications:
2.2GHz Quad core Intel i7
4GB DDR3 RAM
Dedicated Graphics:
AMD Radeon HD

YYou're better off installing beta software on an external drive.

Will update 10.10.1 mess up my BootCamp partition?

When upgrading to Yosemite (10.10), my BootCamp partition was messed up and I had to reinstall BootCamp completely. Many people had this issue as well. Does anyone know or has anyone tried updating to Yosemite (10.10.1) from Yosemite (10.10) with a BootCamp and if so, does your BootCamp partition run fine?
I just don't want to go through that hassle once again of reinstall Windows and all of my work in Windows. Any response will be appreciated. Thank you.

I upgraded my Mac from 10.10 Yosemite to 10.10.1 Yosemite, with a BootCamp partition running Windows 7. So far, I have encountered no errors on my partition.
Good Luck.

Bootcamp partition issue after Yosemite upgrade

I've installed bootcamp on my mac. Later on I needed more space on my bootcamp partition and used some method to shrink the mac partition and increase the bootcamp partition. This method worked fine until I did a Yosemite upgrade today. Now I see that my bootcamp partition is gone and has reverted to it's original size. Below is a screenshot of disk utility and outputs of the commands wanted. I need help in recovering my bootcamp partition. Thank you very much.
diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *160.0 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                  Apple_HFS Macintosh HD            55.0 GB    disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
   4:       Microsoft Basic Data                         78.0 GB    disk0s4
diskutil cs list
No CoreStorage logical volume groups found
sudo gpt -vv -r show /dev/disk0
gpt show: /dev/disk0: mediasize=160041885696; sectorsize=512; blocks=312581808
gpt show: /dev/disk0: Suspicious MBR at sector 0
gpt show: /dev/disk0: Pri GPT at sector 1
gpt show: /dev/disk0: Sec GPT at sector 312581807
      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 107421872      2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC
107831512    1269544      3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
109101056   51138560
160239616 152340480      4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
312580096       1679
312581775         32         Sec GPT table
312581807          1         Sec GPT header
sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 19457/255/63 [312581808 sectors]
Signature: 0xAA55
         Starting       Ending
#: id cyl hd sec - cyl hd sec [     start -       size]
1: EE    0   0   2 - 1023 254 63 [         1 - 160239615] <Unknown ID>
*2: 07 1023 254 63 - 1023 254 63 [ 160239616 - 152340480] HPFS/QNX/AUX
3: 00    0   0   0 -    0   0   0 [         0 -          0] unused
4: 00    0   0   0 -    0   0   0 [         0 -          0] unused
sudo dd if=/dev/rdisk0 count=1 2>/dev/null | hexdump -C
00000000 33 c0 8e d0 bc 00 7c 8e c0 8e d8 be 00 7c bf 00 |3.....|......|..|
00000010 06 b9 00 02 fc f3 a4 50 68 1c 06 cb fb b9 04 00 |.......Ph.......|
00000020 bd be 07 80 7e 00 00 7c 0b 0f 85 0e 01 83 c5 10 |....~..|........|
00000030 e2 f1 cd 18 88 56 00 55 c6 46 11 05 c6 46 10 00 |.....V.U.F...F..|
00000040 b4 41 bb aa 55 cd 13 5d 72 0f 81 fb 55 aa 75 09 |.A..U..]r...U.u.|
00000050 f7 c1 01 00 74 03 fe 46 10 66 60 80 7e 10 00 74 |....t..F.f`.~..t|
00000060 26 66 68 00 00 00 00 66 ff 76 08 68 00 00 68 00 |&fh....f.v.h..h.|
00000070 7c 68 01 00 68 10 00 b4 42 8a 56 00 8b f4 cd 13 ||h..h...B.V.....|
00000080 9f 83 c4 10 9e eb 14 b8 01 02 bb 00 7c 8a 56 00 |............|.V.|
00000090 8a 76 01 8a 4e 02 8a 6e 03 cd 13 66 61 73 1c fe |.v..N..n...fas..|
000000a0 4e 11 75 0c 80 7e 00 80 0f 84 8a 00 b2 80 eb 84 |N.u..~..........|
000000b0 55 32 e4 8a 56 00 cd 13 5d eb 9e 81 3e fe 7d 55 |U2..V...]...>.}U|
000000c0 aa 75 6e ff 76 00 e8 8d 00 75 17 fa b0 d1 e6 64 |.un.v....u.....d|
000000d0 e8 83 00 b0 df e6 60 e8 7c 00 b0 ff e6 64 e8 75 |......`.|....d.u|
000000e0 00 fb b8 00 bb cd 1a 66 23 c0 75 3b 66 81 fb 54 |.......f#.u;f..T|
000000f0 43 50 41 75 32 81 f9 02 01 72 2c 66 68 07 bb 00 |CPAu2....r,fh...|
00000100 00 66 68 00 02 00 00 66 68 08 00 00 00 66 53 66 |.fh....fh....fSf|
00000110 53 66 55 66 68 00 00 00 00 66 68 00 7c 00 00 66 |SfUfh....fh.|..f|
00000120 61 68 00 00 07 cd 1a 5a 32 f6 ea 00 7c 00 00 cd |ah.....Z2...|...|
00000130 18 a0 b7 07 eb 08 a0 b6 07 eb 03 a0 b5 07 32 e4 |..............2.|
00000140 05 00 07 8b f0 ac 3c 00 74 09 bb 07 00 b4 0e cd |......<.t.......|
00000150 10 eb f2 f4 eb fd 2b c9 e4 64 eb 00 24 02 e0 f8 |......+..d..$...|
00000160 24 02 c3 49 6e 76 61 6c 69 64 20 70 61 72 74 69 |$..Invalid parti|
00000170 74 69 6f 6e 20 74 61 62 6c 65 00 45 72 72 6f 72 |tion table.Error|
00000180 20 6c 6f 61 64 69 6e 67 20 6f 70 65 72 61 74 69 | loading operati|
00000190 6e 67 20 73 79 73 74 65 6d 00 4d 69 73 73 69 6e |ng system.Missin|
000001a0 67 20 6f 70 65 72 61 74 69 6e 67 20 73 79 73 74 |g operating syst|
000001b0 65 6d 00 00 00 63 7b 9a e9 54 00 00 00 00 00 00 |em...c{..T......|
000001c0 02 00 ee fe ff ff 01 00 00 00 ff 0f 8d 09 80 fe |................|
000001d0 ff ff 07 fe ff ff 00 10 8d 09 00 88 14 09 00 00 |................|
000001e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.|
00000200

I've included the updated output for the last command
00000000 57 ac 81 37 d5 fe 20 bc c8 1b 93 fe 7f eb 7d bf |W..7.. .......}.|
00000010 f9 eb fb 78 ab e6 4f 23 34 67 cc ff 00 98 57 14 |...x..O#4g....W.|
00000020 1c db cc b7 bf 64 8d bf 78 ff 00 e4 db 7f d4 4f |.....d..x......O|
00000030 fd 20 4b fe e4 22 55 17 78 de b7 9f 74 c8 96 35 |. K.."U.x...t..5|
00000040 55 b5 87 d6 6e 7c 78 f1 f4 a7 e1 fb 11 fe ef 84 |U...n|x.........|
00000050 a9 fd ec 52 c5 ff 00 2e 11 7f bc b8 aa c8 12 33 |...R...........3|
00000060 f9 95 2d c3 06 fd cd 9b 43 ca ac df 17 08 9f fd |..-.....C.......|
00000070 7e 7c e5 ff 00 75 4b 2c 9e af fd 2c 3d 5f f4 fc |~|...uK,...,=_..|
00000080 55 96 ff 00 a3 84 6e 2e cd 1b 2f 2e ab c7 8f 1f |U.....n.../.....|
00000090 b1 cf 87 a7 c3 83 ff 00 be bd 2f 4f fd d5 f5 5f |........../O..._|
000000a0 f7 15 2a ad de 1e 0c f3 48 65 3e 99 e5 23 14 66 |..*.....He>..#.f|
000000b0 93 97 3f b3 f6 f9 f3 f5 f8 27 ee a5 fa cc b7 3c |..?......'.....<|
000000c0 3f 7b fa 4b d2 bf 89 57 99 6b 7a cc f6 3e 8f 98 |?{.K...W.kz..>..|
000000d0 2d a1 1c b4 7d 42 cf 52 40 91 a3 28 8e 19 7e 2f |-...}B.R@..(..~/|
000000e0 ee 7d 38 fd 3f ab 3c b2 ff 00 a3 ff 00 ba bf 7b |.}8.?.<........{|
000000f0 17 fa 2f ab 2e 2a fa 03 f3 5a f2 e2 cb f2 e7 59 |../..*...Z.....Y|
00000100 7b 50 27 96 ea cd ac 2d 3d 05 ab 17 bd 64 b4 84 |{P'....-=....d..|
00000110 a0 43 56 6f df fe c2 7f c6 2e 1f 65 d5 4e ad a2 |.CVo.......e.N..|
00000120 b3 d3 ec a0 b1 8f 80 b4 b4 8a 38 23 40 aa bc 63 |..........8#@..c|
00000130 8e 2e 09 44 fb 28 9c 15 bf e2 bf 4f 9f fb ab d5 |...D.(.....O....|
00000140 96 25 55 ee a4 09 e9 2c 80 fb 53 96 e7 97 fc 1f |.%U....,..S.....|
00000150 db a7 fc 59 ea f0 ff 00 76 fa 49 70 aa c9 26 31 |...Y....v.Ip..&1|
00000160 38 d8 50 d3 e1 1e e2 9f 2f e7 fd af 4f e1 7f 8b |8.P...../...O...|
00000170 d2 f5 5e dd 55 49 26 01 e3 48 d4 f1 6d cd 0f 56 |..^.UI&..H..m..V|
00000180 ff 00 89 fe da 7f c2 ff 00 c5 51 4e aa 43 e6 76 |..........QN.C.v|
00000190 9a e7 5c f2 ad b7 a6 44 6f ac a4 a1 a9 fe f9 b2 |..\....Do.......|
000001a0 bb 9b c4 7f 27 fd 77 fb d8 ad d5 53 fc e2 d2 74 |....'.w....S...t|
000001b0 cd 47 ca 2d 26 a3 01 b8 b5 d2 ae ad 75 2b 98 83 |.G.-&.......u+..|
000001c0 88 ab 04 12 81 73 c9 f9 c5 c4 0b 56 b8 7f ef 62 |.....s.....V...b|
000001d0 ff 00 89 62 ab 7c bd f9 75 e5 2f 2f 6a 17 8f 6c |...b.|..u.//j..l|
000001e0 b3 49 6d 73 f5 74 16 b7 93 7d 6a dd 16 d6 45 96 |.Ims.t...}j...E.|
000001f0 16 5f 57 f7 84 c4 78 7a 52 dc 4b 2c 90 7c 11 45 |._W...xzR.K,.|.E|
00000200

Will upgrading from OSX Snow Lepoard to OSX Yosemite remove my Windows Bootcamp Partition?

Hello guys, so i have a question.
I am currently running OSX Snow Leopard, and i want to upgrade to OSX Yosemite, but i'm scared that upgrading to Yosemite will erase my Bootcamp partition.
so, Will upgrading to Yosemite kill the partition? or will it save it, so that after Yosemite is installed, i can still dual boot into Windows 7?
Thanks
!Mister_Meh

Also backup your OS X volume.
Windows has built-in backup software. You could also try WinClone X.

Bootcamp partition won't load on startup after Yosemite upgrade

Hi!
I have a similar problem like others before, but I tried to fix it like described but it didn't work.
Here's my output:
diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *250.1 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                  Apple_HFS Macintosh HD            199.3 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
   4:       Microsoft Basic Data                         20.2 GB    disk0s4
diskutil cs list
No CoreStorage logical volume groups found
sudo gpt -vv -r show /dev/disk0
gpt show: /dev/disk0: mediasize=250059350016; sectorsize=512; blocks=488397168
gpt show: /dev/disk0: Suspicious MBR at sector 0
gpt show: /dev/disk0: Pri GPT at sector 1
gpt show: /dev/disk0: Sec GPT at sector 488397167
      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 389244168      2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC
389653808    1269536      3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
390923344   58022832
448946176   39450624      4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
488396800        335
488397135         32         Sec GPT table
488397167          1         Sec GPT header
sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 30401/255/63 [488397168 sectors]
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 - 389244168] HFS+
3: AB 1023 254 63 - 1023 254 63 [ 389653808 -    1269536] Darwin Boot
4: 00    0   0   0 -    0   0   0 [         0 -          0] unused
testdisk
Disk /dev/disk0 - 250 GB / 232 GiB - 488397168 sectors (RO)
Current partition structure:
     Partition                  Start        End    Size in sectors
1 P EFI System                    40     409639     409600 [EFI system partitio
2 P Mac HFS                   409640 389653807 389244168 [Customer]
3 P Mac Boot               389653808 390923343    1269536 [Recovery HD]
No FAT, NTFS, ext2, JFS, Reiser, cramfs or XFS marker
4 P MS Data                448946176 488396799   39450624 [Microsoft basic dat
4 P MS Data                448946176 488396799   39450624 [Microsoft basic dat
a]

You have been bit by the Yosemite/Windows resizing bug.
390923344   58022832
448946176   39450624      4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
Have you used any tools to resize your Windows partition at any time prior to the Yosemite upgrade?
Here is a reference thread that you can follow - Missing Bootcamp Partition (with pastes!).
You are in Testdisk Quick Search, you will need to run Deeper Search to find your lost 'NTFS' partition.

Windows 8.1 (Bootcamp) goes into Auto Recovery after Yosemite Upgrade

I upgraded to Yosemite and now my Windows 8.1 bootcamp won't boot up. I still have the Windows bootcamp option when I hold "Option" on boot, but when I select Windows it goes directly into "Automatic Recovery".
For the bootcamp partition all the options to do anything are greyed out and the size is much less than before (it was ~200GB before, now it's ~70GB).
It looks like the missing disk space for bootcamp is now unallocated?
Thanks in advance for your help!

Sure can.... I'm not sure if I have a Fusion Drive. How can I tell?
por-kellyj-m:~ kellyj$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.3 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage                         289.4 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
   4:       Microsoft Basic Data BOOTCAMP                70.0 GB    disk0s4
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           *289.1 GB   disk1
                                 Logical Volume on disk0s2
                                 BBEBC6A7-04B5-471E-9CAA-721F1DADE53B
                                 Unlocked Encrypted
por-kellyj-m:~ kellyj$ diskutil cs list
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group FFD4BCA8-5B77-4FFB-BEC4-169633FA62B4
    =========================================================
    Name:         Macintosh HD
    Status:       Online
    Size:         289418031104 B (289.4 GB)
    Free Space:   4096 B (4.1 KB)
    |
    +-< Physical Volume 00C7FC65-505F-493E-8659-06D99AFCC10C
    |   ----------------------------------------------------
    |   Index:    0
    |   Disk:     disk0s2
    |   Status:   Online
    |   Size:     289418031104 B (289.4 GB)
    |
    +-> Logical Volume Family 1E104CBD-82E8-4C14-BDD6-CDC7CD204155
        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 BBEBC6A7-04B5-471E-9CAA-721F1DADE53B
            Disk:                  disk1
            Status:                Online
            Size (Total):          289082482688 B (289.1 GB)
            Conversion Progress:   -none-
            Revertible:            Yes (unlock and decryption required)
            LV Name:               Macintosh HD
            Volume Name:           Macintosh HD
            Content Hint:          Apple_HFS
por-kellyj-m:~ kellyj$ sudo gpt -vv -r show /dev/disk0
Password:
gpt show: /dev/disk0: mediasize=500277790720; sectorsize=512; blocks=977105060
gpt show: /dev/disk0: Suspicious MBR at sector 0
gpt show: /dev/disk0: Pri GPT at sector 1
gpt show: /dev/disk0: Sec GPT at sector 977105059
      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 565269592      2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
565679232    1269536      3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
566948768       1120
566949888 136716288      4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
703666176 273438851
977105027         32         Sec GPT table
977105059          1         Sec GPT header
por-kellyj-m:~ kellyj$ sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 60821/255/63 [977105060 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: AC 1023 254 63 - 1023 254 63 [    409640 - 565269592] <Unknown ID>
3: AB 1023 254 63 - 1023 254 63 [ 565679232 -    1269536] Darwin Boot
*4: 07 1023 254 63 - 1023 254 63 [ 566949888 - 136716288] HPFS/QNX/AUX
Thanks.

Upgrading MacBook Pro 13" (mid-2010) HDD with Bootcamp Partition

I'm upgrading my macbook pro's hdd from 250 gb to 1tb. My OS is lion 10.7.5 and i also have windows 7 installed on my bootcamp partition.
The following are the details to the HDD i plan to buy.
Samsung Spinpoint M8 1 TB Laptop Internal Hard Drive (ST1000LM024) -
2.5 inch Form Factor
SATA 3.0 Gbps Interface
1 TB HDD
5400 RPM Spin Speed
I need your advice on if i m buying the correct hard disk. If not please advice me one.
And please also tell me how i should upgrade my hard disk. I know how to physically install the drive but i ask of you to tell me how to clone my current hard disk with my bootcamp partition. Which software to use, precautions to take etc.
MacBookPro 13" (Mid-2010)
Processor 2.4 GHz Intel Core 2 Duo
Memory 8 GB 1067 MHz DDR3
Graphics NVIDIA GeForce 320M 256 MB
Software Mac OS X Lion 10.7.5 (11G63) and Windows 7 Ultimate on bootcamp

Those are the correct RAM modules for you model (the 13" being the only mid-2010 model that can use 16GB of RAM - but those modules will surely get you to 8GB!).
Am I right in assuming that you want to purchase a SSD to be installed in your boot bay and that you want to install the Samsung drive in the optical bay? Unfortunately, your link points to a rather sparse description of the drive - I see the 2.5" but I don't see the depth (which should be 7-9.5mm and not a mm more).
I'm just unclear about whether you're looking for a new spinning drive as well as a SSD and whether or not the drive will fit (just a minute - OK, found some more info - the Samsung drive is 9.5mm so it should sit just fine in your machine: do you still want a SSD?).
Note that the 2TB Samsung probably won't speed things up much - it's a 5400rpm drive: if you could use a 1TB drive, you could get a faster, 7200rpm drive.
Clinton
MacBook Pro (15” Late 2011), OS X 10.??, 16GB Crucial RAM, 960GB M500 Crucial SSD, 27” Apple Thunderbolt Display

I'm installing windows 7 64-bit on my imac which I've done before but I get a message that the partition is GPT even after I format the bootcamp partition. I just upgraded my hard drive to a 3tb and I'm allocating 1tb for windows. How can I fix this?

I'm installing windows 7 64-bit on my imac which I've done before but I get a message that the partition is GPT even after I format the bootcamp partition. I just upgraded my hard drive to a 3tb and I'm allocating 1tb for windows. How can I fix this?

No easy fix for a few reasons:
1) Bootcamp requires a hybrid MBR for the partition table. That is: both an MBR and a GPT partition table at the same time with the GPT one having all partitions and the MBR one having only the ones that are relevant, but at most 4 of them (including the protective partition and the Macintosh HD one). Which leads us to:
2) The MBR part of the hybrid partition table cannot work with 3TB hard drives. MBR is limited to 2TB.
I am working on a small EFI app that can boot Windows in EFI mode on a Mac and that would mean that you can go GPT only on your system. The progress of the app is slow due to the nature of EFI and for now requires that you do an unattended Windows install with slipstreamed graphics drivers, but we are adding VGA loading on top of EFI quite soon after the rest of the app stabilises. The status of the app is documented at:
Win7 x64 booting natively via EFI (no bios emulation)
Windows does actually successfully boot in EFI mode on most Macs (anything with a 64bit EFI should work), but does not have graphics support even if you load the driver due to the VGA pci registers not being set by the firmware. Furthermore, in Setup and Safe Mode, Windows uses VGA instead of GOP which is a failure by design since VGA is a BIOS standard and not really compatible without hacks with EFI. Other EFI implementations also add VGA compatibility at a high cost to the firmware complexity for the VGA cards available on the market that don't actually contain anything in their ROM except the VGA BIOS.
My recomendations:
1) Install on a second smaller hard-drive; or
2) Wait for the EFI app to come out officially and use that to boot Windows Vista SP1 x64 and Windows 7 x64 (RTM and SP1) in the native EFI mode.
3) Wait for Windows 8 which supports VGA-less booting acording to the AMD presentation at UEFI Plugfest.

Bootcamp missing after Yosemite upgrade

So I had OS-X Mavericks installed and a Windows 7 Bootcamp partition. Now I've installed OS-X Yosemite and I’ve run into a problem. Here are the steps I took:
First, I resized partitions manually using Disk Utility to even up the space a bit.
Installed Yosemite
Now, I can boot into Bootcamp just fine, and I can boot into OS-X fine. But I can no longer see my Bootcamp drive in OS-X and I can’t access it via Parallels.
Looking at previous similar problems on the forums here, I ran a couple of sudo commands for more info:
[REDACTED} sudo gpt -r -vv show disk0
WARNING: Improper use of the sudo command could lead to data loss
or the deletion of important system files. Please double-check your
typing when using sudo. Type "man sudo" for more information.
To proceed, enter your password, or type Ctrl-C to abort.
Password:
gpt show: disk0: mediasize=750156374016; sectorsize=512; blocks=1465149168
gpt show: disk0: Suspicious MBR at sector 0
gpt show: disk0: Pri GPT at sector 1
gpt show: disk0: Sec GPT at sector 1465149167
       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   927734368      2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC
   928144008     1269544      3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
   929413552        1616
   929415168   242765824      4
1172180992   292966400      4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
1465147392        1743
1465149135          32         Sec GPT table
1465149167           1         Sec GPT header
[REDACTED] sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 91201/255/63 [1465149168 sectors]
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   25 127 15 - 1023 254 63 [    409640 - 927734368] HFS+
3: AB 1023 254 63 - 1023 254 63 [ 928144008 -    1269544] Darwin Boot
*4: 07 1023 254 63 - 1023 254 63 [ 929415168 - 535732224] HPFS/QNX/AUX
============
DIsk0s4 shows up in Disk Utility, but shows as the old size (150GB) not as it’s new size (closer to 275GB).
I think I see the problem here, but I’m not yet enough of an OS-X ninja to know for sure… any help would be appreciated.
Thx!

Nothing? Nobody? Well, at least I'm seeing a lot of other posts about Yosemite/bootcamp issues, so I know it's not just me. It just ***** to have to take time off work to rebuild my Windows side so I can actually... well, work.
- Mal

I guess I didn't explaine that I have a healthy operating Windows 8 Boot camp partition on my hard drive. When I upgraded to Mavericks I am no long able to access the bootcamp partition from the disk icon in system preferences; the Windows 8 works fine.

On both Mini Mac and iMac 27" I am no longer able to utalize the Startup Disk icon in System Preferences; the Windows 8 on Bootcamp partition works fine if I close the Mavericks OX and select the Windows partition at bootup from the hard drive. My question is why don't the icon in System Prederences work anymore since I upgraded to Mavericks. Also, Users & Groups, Printers & Scanners icons no longer work either.

On both Mini Mac and iMac 27" I am no longer able to utalize the Startup Disk icon in System Preferences; the Windows 8 on Bootcamp partition works fine if I close the Mavericks OX and select the Windows partition at bootup from the hard drive. My question is why don't the icon in System Prederences work anymore since I upgraded to Mavericks. Also, Users & Groups, Printers & Scanners icons no longer work either.

How do I ensure bootcamp partition works after upgrading snow leopard to mountain lion

I am very apprehensive about upgrading to Mountain Lion due to performance concerns and the debacle with the new Auto Save feature which seems like a very poor and confusing solution to a problem that didn't really exist. I am only considering the upgrade, so that I can get the latest version of Xcode - 4.3; for some reason, 4.2 for SL is no longer available and my current 4.0 version is no longer supported, so I feel forced to upgrade to ML. Also, I have a bootcamp partition that I need to be able to use without issues after having upgraded to ML. So the essence of my question is this: what steps do I need to take prior to upgrading to ML to ensure that my Bootcamp partition is left intact and bootable. I have already created a compressed backup disk image and stored on a separate external hard disk for precautionary reasons. Is there anything else I should know beore going ahead with the upgrade?
Thanks.

Auto Save is actually a very useful feature. If you are typing a paper in Pages and you haven't saved in a long time, and then your battery dies suddenly, your paper is saved. Before Auto Save, you would have lost all your progress.
Your BootCamp partition will not even be touched during the install of Mountain Lion. As long as you make sure to select your Mac OS partition during setup, nothing will happen to your Windows side and everything will still work fine.

Will i lose my bootcamp partition on snow leopard if upgrading to maverick

Hello, I have bootcamp with Windows 7 on Snow Leopard. Will I lose the bootcamp partition if I upgrade from Snow Leopard to Maverick?

Hello everybody, I upgrade my macbook air minutes ago. The bootcamp partition is not accessible anymore When i hit the alt key on boot, the win start icon does not show. I disk utilities i see the partition as disk0s4. I think this is, because i resized the partition of mac and windows some time ago. Now it seems, that the maverick update didn't get that. Here is the partition view. Is there someone who might help me to fix this? Maybe with some terminal ****
Message was edited by: AndiRudi

Yosemite Upgrade broke bootcamp partition

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