Windows partition disappeared after installing Yosemite
I can no longer access the Windows installation in Bootcamp and it is imperative that I recover it.
I know I'm not the only one who has this problem. The NTFS header for the Windows partition has been overwritten or perhaps changed.
Is it an actual NTFS header? Or could it be something different that Bootcamp makes.
Below is the output from the various programs available to gather information:
$ 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 450.0 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
4: Microsoft Basic Data 20.0 GB disk0s4
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS Macintosh HD *449.7 GB disk1
Logical Volume on disk0s2
B15E4682-2AEB-49E9-9D39-D908D554CACE
Unencrypted
/dev/disk2
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *209.7 MB disk2
1: Apple_HFS BlueStacks App Player 209.7 MB disk2s1
———————————————————————
Last login: Mon Feb 23 22:19:24 on ttys001
$ diskutil cs list
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group 7AA9866D-5984-4A3C-9888-EDD350B39CA4
=========================================================
Name: Macintosh HD
Status: Online
Size: 450041667584 B (450.0 GB)
Free Space: 18931712 B (18.9 MB)
|
+-< Physical Volume 622B0FAB-B803-46DD-A0DE-EC6B66DDCBBF
| ----------------------------------------------------
| Index: 0
| Disk: disk0s2
| Status: Online
| Size: 450041667584 B (450.0 GB)
|
+-> Logical Volume Family 32A502EA-103F-4095-A501-C16E8E64A30D
----------------------------------------------------------
Encryption Status: Unlocked
Encryption Type: None
Conversion Status: NoConversion
Conversion Direction: -none-
Has Encrypted Extents: No
Fully Secure: No
Passphrase Required: No
|
+-> Logical Volume B15E4682-2AEB-49E9-9D39-D908D554CACE
---------------------------------------------------
Disk: disk1
Status: Online
Size (Total): 449670414336 B (449.7 GB)
Conversion Progress: -none-
Revertible: Yes (no decryption required)
LV Name: Macintosh HD
Volume Name: Macintosh HD
Content Hint: Apple_HFS
————————————————————————
$ sudo fdisk /dev/disk0
Password:
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 - 878987632] <Unknown ID>
3: AB 1023 254 63 - 1023 254 63 [ 879397272 - 1269536] Darwin Boot
4: 0C 1023 254 63 - 1023 254 63 [ 938043392 - 39061504] Win95 FAT32L
———————————————————————————
$ 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 878987632 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
879397272 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
880666808 57376584
938043392 39061504 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
977104896 131
977105027 32 Sec GPT table
977105059 1 Sec GPT header
————————————————————————————————
