Bootcamp Partition Lost After Yosemite Upgrade
Like many others, I upgraded to Yosemite and have now lost access to Bootcamp and my Windows partition (which has been replaced with a greyed out disk0s4). It seems LonerT has brilliantly found a solution for this, but I am struggling to follow the sequence of steps delineated in various threads on this topic. I have/had a lot of mission critical data on my Windows partition, so am worried about accidentally making the situation worse. 😕
Here is the information I cobbled together so far:
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 350.2 GB disk0s2
3: Apple_Boot Recovery HD 650.1 MB disk0s3
4: Microsoft Basic Data 90.0 GB disk0s4
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS Macintosh HD *349.8 GB disk1
Logical Volume on disk0s2
85806C0D-965A-4E1F-B73B-54084FBB7FDF
Unlocked Encrypted
diskutil cs list
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group 9F66D719-DEBC-482D-9725-A2D0EFC1B49D
=========================================================
Name: Macintosh HD
Status: Online
Size: 350191783936 B (350.2 GB)
Free Space: 954368 B (954.4 KB)
|
+-< Physical Volume 35A6BD2F-48F0-4A12-924D-774C86B9C09D
| ----------------------------------------------------
| Index: 0
| Disk: disk0s2
| Status: Online
| Size: 350191783936 B (350.2 GB)
|
+-> Logical Volume Family F9D06192-F7A3-48CD-B25A-D5DD629EFB17
----------------------------------------------------------
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 85806C0D-965A-4E1F-B73B-54084FBB7FDF
---------------------------------------------------
Disk: disk1
Status: Online
Size (Total): 349838393344 B (349.8 GB)
Conversion Progress: -none-
Revertible: Yes (unlock and decryption required)
LV Name: Macintosh HD
Volume Name: Macintosh HD
Content Hint: Apple_HFS
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 683968328 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
684377968 1269760 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
685647728 115677328
801325056 175779840 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
977104896 131
977105027 32 Sec GPT table
977105059 1 Sec GPT header
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 - 683968328] <Unknown ID>
3: AB 1023 254 63 - 1023 254 63 [ 684377968 - 1269760] Darwin Boot
4: 0C 1023 254 63 - 1023 254 63 [ 801325056 - 175779840] Win95 FAT32L
sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C
00000000 eb 52 90 4e 54 46 53 20 20 20 20 00 02 08 00 00 |.R.NTFS .....|
00000010 00 00 00 00 00 f8 00 00 3f 00 ff 00 00 40 c3 2f |........?....@./|
00000020 00 00 00 00 80 00 80 00 ff 2f 7a 0a 00 00 00 00 |........./z.....|
00000030 00 00 0c 00 00 00 00 00 02 00 00 00 00 00 00 00 |................|
00000040 f6 00 00 00 01 00 00 00 9f b7 f0 7c ec f0 7c 26 |...........|..|&|
00000050 00 00 00 00 fa 33 c0 8e d0 bc 00 7c fb 68 c0 07 |.....3.....|.h..|
00000060 1f 1e 68 66 00 cb 88 16 0e 00 66 81 3e 03 00 4e |..hf......f.>..N|
00000070 54 46 53 75 15 b4 41 bb aa 55 cd 13 72 0c 81 fb |TFSu..A..U..r...|
00000080 55 aa 75 06 f7 c1 01 00 75 03 e9 dd 00 1e 83 ec |U.u.....u.......|
00000090 18 68 1a 00 b4 48 8a 16 0e 00 8b f4 16 1f cd 13 |.h...H..........|
000000a0 9f 83 c4 18 9e 58 1f 72 e1 3b 06 0b 00 75 db a3 |.....X.r.;...u..|
000000b0 0f 00 c1 2e 0f 00 04 1e 5a 33 db b9 00 20 2b c8 |........Z3... +.|
000000c0 66 ff 06 11 00 03 16 0f 00 8e c2 ff 06 16 00 e8 |f...............|
000000d0 4b 00 2b c8 77 ef b8 00 bb cd 1a 66 23 c0 75 2d |K.+.w......f#.u-|
000000e0 66 81 fb 54 43 50 41 75 24 81 f9 02 01 72 1e 16 |f..TCPAu$....r..|
000000f0 68 07 bb 16 68 70 0e 16 68 09 00 66 53 66 53 66 |h...hp..h..fSfSf|
00000100 55 16 16 16 68 b8 01 66 61 0e 07 cd 1a 33 c0 bf |U...h..fa....3..|
00000110 28 10 b9 d8 0f fc f3 aa e9 5f 01 90 90 66 60 1e |(........_...f`.|
00000120 06 66 a1 11 00 66 03 06 1c 00 1e 66 68 00 00 00 |.f...f.....fh...|
00000130 00 66 50 06 53 68 01 00 68 10 00 b4 42 8a 16 0e |.fP.Sh..h...B...|
00000140 00 16 1f 8b f4 cd 13 66 59 5b 5a 66 59 66 59 1f |.......fY[ZfYfY.|
00000150 0f 82 16 00 66 ff 06 11 00 03 16 0f 00 8e c2 ff |....f...........|
00000160 0e 16 00 75 bc 07 1f 66 61 c3 a0 f8 01 e8 09 00 |...u...fa.......|
00000170 a0 fb 01 e8 03 00 f4 eb fd b4 01 8b f0 ac 3c 00 |..............<.|
00000180 74 09 b4 0e bb 07 00 cd 10 eb f2 c3 0d 0a 41 20 |t.............A |
00000190 64 69 73 6b 20 72 65 61 64 20 65 72 72 6f 72 20 |disk read error |
000001a0 6f 63 63 75 72 72 65 64 00 0d 0a 42 4f 4f 54 4d |occurred...BOOTM|
000001b0 47 52 20 69 73 20 6d 69 73 73 69 6e 67 00 0d 0a |GR is missing...|
000001c0 42 4f 4f 54 4d 47 52 20 69 73 20 63 6f 6d 70 72 |BOOTMGR is compr|
000001d0 65 73 73 65 64 00 0d 0a 50 72 65 73 73 20 43 74 |essed...Press Ct|
000001e0 72 6c 2b 41 6c 74 2b 44 65 6c 20 74 6f 20 72 65 |rl+Alt+Del to re|
000001f0 73 74 61 72 74 0d 0a 00 8c a9 be d6 00 00 55 aa |start.........U.|
00000200
TestDisk 7.0, Data Recovery Utility, April 2015
Christophe GRENIER <grenier@cgsecurity.org>
TestDisk is free software, and
comes with ABSOLUTELY NO WARRANTY.
Select a media (use Arrow keys, then press Enter):
>Disk /dev/disk0 - 500 GB / 465 GiB (RO)
Disk /dev/rdisk0 - 500 GB / 465 GiB (RO)
Disk /dev/rdisk1 - 349 GB / 325 GiB
TestDisk 7.0, Data Recovery Utility, April 2015
Christophe GRENIER <grenier@cgsecurity.org>
Disk /dev/rdisk1 - 349 GB / 325 GiB
Please select the partition table type, press Enter when done.
[Intel ] Intel/PC partition
[EFI GPT] EFI GPT partition map (Mac i386, some x86_64...)
[Humax ] Humax partition table
[Mac ] Apple partition map
>[None ] Non partitioned media
[Sun ] Sun Solaris partition
[XBox ] XBox partition
[Return ] Return to disk selection
Hint: None partition table type has been detected.
Note: Do NOT select 'None' for media with only a single partition. It's very
rare for a disk to be 'Non-partitioned'.
TestDisk 7.0, Data Recovery Utility, April 2015
Christophe GRENIER <grenier@cgsecurity.org>
Disk /dev/disk0 - 500 GB / 465 GiB - 977105060 sectors (RO)
Current partition structure:
Partition Start End Size in sectors
1 P EFI System 40 409639 409600 [EFI System Partitio
2 P Unknown 409640 684377967 683968328 [Macintosh HD]
3 P Mac Boot 684377968 685647727 1269760 [Recovery HD]
Warning: number of heads/cylinder mismatches 255 (NTFS) != 1 (HD)
Warning: number of sectors per track mismatches 63 (NTFS) != 1 (HD)
4 P MS Data 801325056 977104895 175779840 [BOOTCAMP]
So two questions: Which of these media should I select and what is the correct partition type? Where do I find the start offset and size offset values you reference here:
Rebuild using start/end offsets from Testdisk DeepSearch using GPT Fdisk (http://sourceforge.net/projects/gptfdisk/)
- Sudo gdisk /dev/rdisk0
- P (print the full list of parts)
- D (delete)
- 4 (part 4)
- N (new part)
- 4 (part 4)
- 49741824 - Start offset in bytes (start point for Bootcamp part)
- +187234297(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.
Thank you!!
Message was edited by: bjn1001
MacBook Pro (Retina, 15-inch, Late 2013), OS X Yosemite (10.10.3), null
