Bootcamp partition missing after yosemite installation

Question

I am running OS X 10.10.1 currently. Right after I upgraded to Yosemite my windows 7 partition was missing. I have all of my school work and programs on that partition and I use it quite often. I have seen other questions similar to this but none with an external hard drive backed up like I do. I tried to repair the windows 7 partition with disk utility but it appears to just be floating in cyber space unrecognizable and unrepairable. Something happened when I "upgraded" to Yosemite.Thankfully, I have an external hard drive with both my Macbook partition as well as my windows 7 partition saved on to my external hard drive. I went the extra mile and partitioned my external hard drive as well with a macbook partition and a windows 7 partition so they are not in the same part of the hard drive. Unfortunately I&#x27;m a little rusty with my tech skills now. How can I just restore this back to what it was? time machine won&#x27;t restore my windows 7 partition. I just want everything back to where it was originally, I don&#x27;t care about yosemite. I&#x27;m quite sure that I didn&#x27;t overwrite the windows 7 partition on my external hard drive because it doesn&#x27;t exist on this new operating system, so it must be in my external drive. Can someone please give me some direction for a beginner on stuff like this?

Loner T · Answer

If your Windows partition was untouched by Yosemite upgrade and has not been resized using any tools, it may be possible to correct the problem.Can you post the output of the following Terminal commands?diskutil listdiskutil cs listsudo gpt -vv -r show /dev/disk0sudo fdisk /dev/disk0The "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.

colinkoenig · Answer

Colins-MacBook-Pro-4:~ colinkoenig$ diskutil list/dev/disk0   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:      GUID_partition_scheme                        *500.1 GB   disk0   1:                        EFI EFI                     209.7 MB   disk0s1   2:          Apple_CoreStorage                         398.5 GB   disk0s2   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3   4:       Microsoft Basic Data                         45.0 GB    disk0s4/dev/disk1   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:                  Apple_HFS Macintosh HD           *398.1 GB   disk1                                 Logical Volume on disk0s2                                 DEF5676F-8F43-423C-A8F5-5E4D8C8C57D9                                 Unencrypted/dev/disk2   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:     Apple_partition_scheme                        *16.0 MB    disk2   1:        Apple_partition_map                         32.3 KB    disk2s1   2:                  Apple_HFS Flash Player            16.0 MB    disk2s2/dev/disk3   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:      GUID_partition_scheme                        *750.2 GB   disk3   1:                        EFI EFI                     209.7 MB   disk3s1   2:                  Apple_HFS Mac OSx                 650.2 GB   disk3s2   3:       Microsoft Basic Data WINDOWS 7               99.7 GB    disk3s3Colins-MacBook-Pro-4:~ colinkoenig$ ------------------------------------------------Colins-MacBook-Pro-4:~ colinkoenig$ diskutil cs listCoreStorage logical volume groups (1 found)|+-- Logical Volume Group 5DDBD007-3D81-4E1A-BBA8-7DD7F125C466    &#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;&#x3D;    Name:         Macintosh HD    Status:       Online    Size:         398484762624 B (398.5 GB)    Free Space:   18935808 B (18.9 MB)    |    +-&lt; Physical Volume BE5E0BAC-AE66-4E3B-A75A-D3AF058A1744    |   ----------------------------------------------------    |   Index:    0    |   Disk:     disk0s2    |   Status:   Online    |   Size:     398484762624 B (398.5 GB)    |    +-&gt; Logical Volume Family 6D635355-E05C-4346-ADC2-7662CC2288F5        ----------------------------------------------------------        Encryption Status:       Unlocked        Encryption Type:         None        Conversion Status:       NoConversion        Conversion Direction:    -none-        Has Encrypted Extents:   No        Fully Secure:            No        Passphrase Required:     No        |        +-&gt; Logical Volume DEF5676F-8F43-423C-A8F5-5E4D8C8C57D9            ---------------------------------------------------            Disk:                  disk1            Status:                Online            Size (Total):          398113505280 B (398.1 GB)            Conversion Progress:   -none-            Revertible:            Yes (no decryption required)            LV Name:               Macintosh HD            Volume Name:           Macintosh HD            Content Hint:          Apple_HFSColins-MacBook-Pro-4:~ colinkoenig$ -------------------------------------To proceed, enter your password, or type Ctrl-C to abort.Password:gpt show: /dev/disk0: mediasize&#x3D;500107862016; sectorsize&#x3D;512; blocks&#x3D;976773168gpt show: /dev/disk0: Suspicious MBR at sector 0gpt show: /dev/disk0: Pri GPT at sector 1gpt show: /dev/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  778290552      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC  778700192    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC  779969728  108913472           888883200   87889920      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7  976773120         15           976773135         32         Sec GPT table  976773167          1         Sec GPT headerColins-MacBook-Pro-4:~ colinkoenig$ --------------------------------ast login: Wed Mar  4 16:47:56 on ttys000Colins-MacBook-Pro-4:~ colinkoenig$ sudo fdisk /dev/disk0Disk: /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] &lt;Unknown ID&gt; 2: AC 1023 254  63 - 1023 254  63 [    409640 -  778290552] &lt;Unknown ID&gt; 3: AB 1023 254  63 - 1023 254  63 [ 778700192 -    1269536] Darwin Boot  4: 0C 1023 254  63 - 1023 254  63 [ 888883200 -   87889920] Win95 FAT32LColins-MacBook-Pro-4:~ colinkoenig$

Loner T · Answer

Can you use Windows 7 Removed after update Yosemite as a reference and  download Testdisk and GPT Fdisk and start a scan with Testdisk. The gap between GPT3/GPT4 indicates is the likely place for your lost NTFS partition.

colinkoenig · Answer

uhm okay i am in test disk at the disk selection and I don&#x27;t know which one to choose none of them really tell me what they are..Select a media (use Arrow keys, then press Enter):&gt;Disk /dev/disk0 - 500 GB / 465 GiB (RO)Disk /dev/disk2 - 16 MB / 15 MiB (RO) Disk /dev/disk3 - 750 GB / 698 GiB (RO) Disk /dev/rdisk0 - 500 GB / 465 GiB (RO) Disk /dev/rdisk1 - 398 GB / 370 GiB Disk /dev/rdisk2 - 16 MB / 15 MiB (RO) Disk /dev/rdisk3 - 750 GB / 698 GiB (RO)

Loner T · Answer

Use /dev/rdisk0. Please eject "Flash Player" (disk2) and external disk (disk3). Physically disconnect disk3.

colinkoenig · Answer

Ok, i made it to here and i don&#x27;t know what to do...i just selected the [EFI GPT] that was already selected and I clicked "quick search" TestDisk 7.0-WIP, Data Recovery Utility, March 2015Christophe GRENIER &lt;grenier@cgsecurity.org&gt;http://www.cgsecurity.orgDisk /dev/rdisk0 - 500 GB / 465 GiB - 976773168 sectors (RO)The harddisk (500 GB / 465 GiB) seems too small! (&lt; 545 GB / 507 GiB)Check the harddisk size: HD jumpers settings, BIOS detection...The following partitions can&#x27;t be recovered:     Partition               Start        End    Size in sectors&gt;  MS Data                976773119 1064663038   87889920   Mac HFS                976773124  978042659    1269536

Loner T · Answer

Press Enter to Continue.Please see https://imgur.com/a/PjmnK for reference.

colinkoenig · Answer

Disk /dev/rdisk0 - 500 GB / 465 GiB - 976773168 sectors (RO)     Partition               Start        End    Size in sectors&gt;P EFI System                    40     409639     409600 [EFI] D Mac HFS                   409640  777975079  777565440 D MS Data                583168008  779970560  196802553 D Mac HFS                778700192  779969727    1269536 D MS Data                779970560  976773112  196802553 D MS Data                888883200  976773119   87889920 D Mac HFS                975503592  976773127    1269536Structure: Ok.  Use Up/Down Arrow keys to select partition.Use Left/Right Arrow keys to CHANGE partition characteristics:                P&#x3D;Primary  D&#x3D;DeletedKeys A: add partition, L: load backup, T: change type, P: list files,     Enter: to continueFAT32, blocksize&#x3D;512, 209 MB / 200 MiB

colinkoenig · Answer

I have more MS Data&#x27;s than the picture does on imgur I&#x27;m not sure which one to click....

Loner T · Answer

Scroll down to the following entry and use &#x27;P - List Files&#x27;. This looks like the most interesting candidate.D MS Data                779970560  976773112  196802553Do not use left/right arrow/cursor keys anywhere in Testdisk.

colinkoenig · Answer

Thank you for letting me know about the arrow keys. I see here is listed some files for the games I had played on windows 7. Seems like everything is still there somewhere or another. Below is the requested infoDirectory /&gt;dr-xr-xr-x     0     0         0 11-Oct-2014 12:43 . dr-xr-xr-x     0     0         0 11-Oct-2014 12:43 .. dr-xr-xr-x     0     0         0 22-Apr-2014 16:03 $Recycle.Bin dr-xr-xr-x     0     0         0 23-Apr-2014 12:50 .jagex_cache_32 dr-xr-xr-x     0     0         0 22-Apr-2014 23:54 Boot dr-xr-xr-x     0     0         0 22-Apr-2014 16:09 Intel dr-xr-xr-x     0     0         0 23-Apr-2014 17:47 NVIDIA dr-xr-xr-x     0     0         0 13-Jul-2009 22:20 PerfLogs dr-xr-xr-x     0     0         0 24-Apr-2014 14:09 Program Files dr-xr-xr-x     0     0         0  4-Oct-2014 16:35 Program Files (x86) dr-xr-xr-x     0     0         0  9-Aug-2014 17:14 ProgramData dr-xr-xr-x     0     0         0 22-Apr-2014 16:03 Recovery dr-xr-xr-x     0     0         0 11-Jul-2014 17:33 Riot Games dr-xr-xr-x     0     0         0 11-Oct-2014 12:28 System Volume Information                                                   Next

colinkoenig · Answer

Part two of the scroll screen on files:  dr-xr-xr-x     0     0         0 24-Apr-2014 14:09 Program Files dr-xr-xr-x     0     0         0  4-Oct-2014 16:35 Program Files (x86) dr-xr-xr-x     0     0         0  9-Aug-2014 17:14 ProgramData dr-xr-xr-x     0     0         0 22-Apr-2014 16:03 Recovery dr-xr-xr-x     0     0         0 11-Jul-2014 17:33 Riot Games dr-xr-xr-x     0     0         0 11-Oct-2014 12:28 System Volume Information dr-xr-xr-x     0     0         0 23-Apr-2014 17:49 Users dr-xr-xr-x     0     0         0 22-Apr-2014 17:14 VTRoot dr-xr-xr-x     0     0         0  4-Oct-2014 16:38 Windows -r--r--r--     0     0      8192 22-Apr-2014 23:54 BOOTSECT.BAK -r--r--r--     0     0      2060 22-Apr-2014 16:08 RHDSetup.log -r--r--r--     0     0    383786 20-Nov-2010 21:23 bootmgr -r--r--r--     0     0 3173011456 11-Oct-2014 19:22 hiberfil.sys&gt;-r--r--r--     0     0 4230684672 11-Oct-2014 19:22 pagefile.sys                                                   NextUse Right to change directory, h to hide Alternate Data Stream    q to quit, : to select the current file, a to select all files    C to copy the selected files, c to copy the current file

Loner T · Answer

Excellent. The top has three numbers. Can you post that line? It is to confirm the numbers from the previous display.GPT 3 StartGPT 3 SizeGPT 3 EndNTFS StartSector OffsetNTFS SizeNTFS End7787001921269536779969728779970560832196802553976773113This is a table to confirm what the new GPT 4 will look like. The positive 832 sector offset is a good sign.

colinkoenig · Answer

TestDisk 7.0-WIP, Data Recovery Utility, March 2015Christophe GRENIER &lt;grenier@cgsecurity.org&gt;http://www.cgsecurity.org     MS Data                779970560  976773112  196802553Directory /

Loner T · Answer

Leave your Testdisk display and start a new Terminal Window. Please use the following steps.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 offsetsSudo gdisk /dev/rdisk0P  (print the full list of parts)D  (delete)4  (part 4)N  (new part)4   (part 4)779970560 - Start offset in bytes  (start point for Bootcamp part) +196802553 (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 6. Accept all other defaults that Gdisk offers.Sudo gdisk /dev/disk0P  (Print list of parts)R   (Recover)H (chooses Hybrid)Partitions numbers to be hybridized: 2 3 4Y (Good for GRUB question)N (part 2 boot flag)N (part 3 boot flag)Y  (part 4 boot flag make NTFS bootable partition)W  (Write the new MBR)Y    (Yes! write the new MBR)RebootTest 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 -&gt; Startup Disk?Test 4 - If Test 3 is successful, select Bootcamp and Click Restart.

GPT 3 Start	GPT 3 Size	GPT 3 End	NTFS Start	Sector Offset	NTFS Size	NTFS End
778700192	1269536	779969728	779970560	832	196802553	976773113