Bootcamp with Win' 8 won't start after Yosemite

Question

After installing bootcamp I had to upgrade my windows partition, it worked until I upgraded to Yosemite.After upgrading and rebooting and clicking alt the windows option didn&#x27;t even appear.I tried a couple of tips in the communitie threads and managed to get windows to appear as an option on reboot however I get the message"missing operating system".Following Loner T&#x27;s suggestions I get these results:diskutil listMacBook-Pro:~ Ran$ diskutil list/dev/disk0   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:      GUID_partition_scheme                        *251.0 GB   disk0   1:                        EFI EFI                     209.7 MB   disk0s1   2:          Apple_CoreStorage                         210.0 GB   disk0s2   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3   4:       Microsoft Basic Data                         30.0 GB    disk0s4/dev/disk1   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:                  Apple_HFS Macintosh HD           *209.6 GB   disk1                                 Logical Volume on disk0s2                                 ADB5ED30-596D-4CBF-95B6-3147DF954E96                                 Unlocked Encrypteddiskutil cs listMacBook-Pro:~ Ran$ diskutil cs listCoreStorage logical volume groups (1 found)|+-- Logical Volume Group B8C99B8C-D7C4-4E0E-8AD3-BA68035C6584    &#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:         209999998976 B (210.0 GB)    Free Space:   0 B (0 B)    |    +-&lt; Physical Volume 0D9669BA-EE47-4F1C-A256-BFD369F8694E    |   ----------------------------------------------------    |   Index:    0    |   Disk:     disk0s2    |   Status:   Online    |   Size:     209999998976 B (210.0 GB)    |    +-&gt; Logical Volume Family BF2FC390-7959-4AD8-A73C-6A2D1ACFD56B        ----------------------------------------------------------        Encryption Status:       Unlocked        Encryption Type:         AES-XTS        Conversion Status:       Complete        Conversion Direction:    -none-        Has Encrypted Extents:   Yes        Fully Secure:            Yes        Passphrase Required:     Yes        |        +-&gt; Logical Volume ADB5ED30-596D-4CBF-95B6-3147DF954E96            ---------------------------------------------------            Disk:                  disk1            Status:                Online            Size (Total):          209648091136 B (209.6 GB)            Conversion Progress:   -none-            Revertible:            Yes (unlock and decryption required)            LV Name:               Macintosh HD            Volume Name:           Macintosh HD            Content Hint:          Apple_HFSsudo gpt -vv -r show /dev/diskMacBook-Pro:~ Ran$ sudo gpt -vv -r show /dev/disk0gpt show: /dev/disk0: mediasize&#x3D;251000193024; sectorsize&#x3D;512; blocks&#x3D;490234752gpt show: /dev/disk0: Suspicious MBR at sector 0gpt show: /dev/disk0: Pri GPT at sector 1gpt show: /dev/disk0: 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  410156248      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC  410565888    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC  411835424   19807200           431642624   58591232      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7  490233856        863           490234719         32         Sec GPT table  490234751          1         Sec GPT headersudo fdisk /dev/diskMacBook-Pro:~ Ran$ sudo fdisk /dev/disk0Disk: /dev/disk0    geometry: 30515/255/63 [490234752 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 -  410156248] &lt;Unknown ID&gt; 3: AB 1023 254  63 - 1023 254  63 [ 410565888 -    1269536] Darwin Boot *4: 07 1023 254  63 - 1023 254  63 [ 431642624 -   58591232] HPFS/QNX/AUXsudo dd if&#x3D;/dev/rdisk0 count&#x3D;1 2&gt;/dev/null | hexdump -MacBook-Pro:~ Ran$ sudo fdisk /dev/disk0Disk: /dev/disk0    geometry: 30515/255/63 [490234752 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 -  410156248] &lt;Unknown ID&gt; 3: AB 1023 254  63 - 1023 254  63 [ 410565888 -    1269536] Darwin Boot *4: 07 1023 254  63 - 1023 254  63 [ 431642624 -   58591232] HPFS/QNX/AUXMacBook-Pro:~ Ran$ sudo dd if&#x3D;/dev/rdisk0 count&#x3D;1 2&gt;/dev/null | hexdump -C00000000  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&#x60;.~..t|00000060  26 66 68 00 00 00 00 66  ff 76 08 68 00 00 68 00  |&amp;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...]...&gt;.}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  |......&#x60;.|....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  |......&lt;.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  4e 8b 2f 59 00 00 00 fe  |em...c{.N./Y....|000001c0  ff ff ee fe ff ff 01 00  00 00 27 40 06 00 00 fe  |..........&#x27;@....|000001d0  ff ff ac fe ff ff 28 40  06 00 d8 7c 72 18 00 fe  |......(@...|r...|000001e0  ff ff ab fe ff ff 00 bd  78 18 20 5f 13 00 80 fe  |........x. _....|000001f0  ff ff 07 fe ff ff 00 58  ba 19 00 08 7e 03 55 aa  |.......X....~.U.|00000200Thanks.

Loner T · Answer

Please see Yosemite Upgrade Broke Bootcamp for reference. You will need Testdisk and GPT Fdisk which has references in the thread.This is the same problem as many others who have upgraded to Yosemite.410565888    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC411835424   19807200         431642624   58591232      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

Venia77 · Answer

Ok thanks, but could you please guide me step by step am really new at this.

Venia77 · Answer

I have Testdisk and GPT Fdisk.

Loner T · Answer

1. You are going to run sudo testdisk /dev/rdisk0.2. Select EFI/GPT partition type.3. Testdisk will list the current GPT. Do a Quick Search. More than likely it will not find anything.4. Deeper Search is next. - This is the step-by-step in greater detail if you need it - http://www.cgsecurity.org/wiki/TestDisk_Step_By_Step.5. The goal is to find the "lost" NTFS header in 411835424   19807200   in this range and rebuilt the GPT#4 entry so you can see the correct NTFS partition to be able to see Windows.

Venia77 · Answer

Is this output normal?

Loner T · Answer

You are in the Recovery partition. You need to go back one step and look for files in MS Data partitions.

Venia77 · Answer

Ok, I went back a step by pressing "q", it got me here. Which one should I chose?

Loner T · Answer

Scroll up to the EFI partition and click continue.

Venia77 · Answer

After many hours of deep search, this is the result:

Loner T · Answer

1. A bit concerned that it shows the list but says they are unrecoverable partitions. Do you recall if you Windows was 29GB (58591232 form first MS Data) or 37GB (78397433)?2. Can you select Continue and use "P" to list files and look for familiar files?3. You will need to repeat 2 for each MS Data entry.4. None of the Start entries are within 411835424   19807200 which may mean you lose Recovery HD.

Venia77 · Answer

1. I started off with 30 gb and then added around 10 so it&#x27;s probably choice number 22. I did that for the first one, and I got this:When you say familiar files you mean real files on my windows partition?3. I pressed q to go back and search the other MS data entry but it got me here:Do I have to restart the process now?

Loner T · Answer

You are looking for familiar Windows files, like "System Volume Information", "Program Files", etc.This is how to get deeper search - http://www.cgsecurity.org/wiki/TestDisk_Step_By_Step#A_partition_is_still_missin g:_Deeper_Search Run a Quick Search first. If you cannot locate any familiar files, choose the EFI partition and then run Deeper Search.

Venia77 · Answer

Loner T,I think I should forget about my partition.I can&#x27;t find any system files, all I get is this message:How can I clean that partition in order to re-install bootcamp?Thanks.

Loner T · Answer

I cannot see the image you posted. Can you a link using an external image sharing website?

Venia77 · Answer

It was saying: Can&#x27;t open filesystem, filesystem seems damaged.But nevermind that, I found my files!!!!Can you see the image below?