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User profile for user: Garycooke
Garycooke Author
User level: Level 1
4 points

Windows 7 Vanished after Yosemite update... help?

Hi, to anyone that might be able to help.


I have a macbook air and have recently done a Yosemite update, 10.10.4 and since doing so i can no longer boot from my Windows 7 partition. Even when booting with the option key.


Loner T has put a few posts asking for information from 'Terminal'. I did this and it just kept going and going and going, so i stopped it and her is the first 20 lines which seem to be the information needed:


00000000 a3 ce 21 b0 ba dc d1 70 8c 8d 7b 26 48 b6 f6 44 |..!....p..{&H..D|

00000010 27 26 e8 0a 58 ae ac df 03 ec 00 b1 1d a2 91 c5 |'&..X...........|

00000020 1c 75 29 8b 96 41 f6 35 c7 d5 9e 78 21 89 bf 88 |.u)..A.5...x!...|

00000030 15 ae 48 43 f3 7c 8e f4 7c 57 b3 e8 2b 22 31 6f |..HC.|..|W..+"1o|

00000040 f2 78 73 33 ba b0 a6 7c 8d 09 17 4d 8e ec da a9 |.xs3...|...M....|

00000050 a1 b9 1b 62 5c 04 70 38 af c4 c5 25 5f c0 ca a8 |...b\.p8...%_...|

00000060 b8 f4 41 8d b9 35 87 2d bc cd 1d 04 b8 8e 0c 20 |..A..5.-....... |

00000070 8b 89 df 31 ad a1 ab 10 76 c9 c3 3d 20 b4 8f 2b |...1....v..= ..+|

00000080 72 76 3d ed 2a 8d 88 23 eb 5a de c2 e6 e5 fd eb |rv=.*..#.Z......|

00000090 f6 80 e4 62 d6 9b a4 16 d0 20 b0 20 2c 54 11 e1 |...b..... . ,T..|

000000a0 b8 0a 20 e1 8e 29 99 d8 f6 08 ed 3c 08 47 59 63 |.. ..).....<.GYc|

000000b0 a0 cf fc dc 4f 2d 4f d3 bc 52 f5 24 98 35 58 c1 |....O-O..R.$.5X.|

000000c0 29 88 43 ce bc 4d fa 0d 91 0d 8f 9f 7c 0d 12 08 |).C..M......|...|

000000d0 b4 d7 43 04 cc f8 9f f0 9f f5 dd a9 d0 c1 99 c5 |..C.............|

000000e0 a1 55 fc 02 2b 2b 04 af d0 df ca 5c b7 bf 10 04 |.U..++.....\....|

000000f0 24 17 df e8 1a df c8 cb 49 d8 a0 19 c5 93 59 f0 |$.......I.....Y.|

00000100 98 3f 03 13 f9 9b 3f 16 61 0b 38 a4 78 a3 7b 64 |.?....?.a.8.x.{d|

00000110 db f4 a8 58 54 c3 65 be d9 39 d8 d3 2a 6e cd 7c |...XT.e..9..*n.||

00000120 30 f7 27 b3 70 1b 21 f8 fd 9a 72 72 70 84 af 1e |0.'.p.!...rrp...|

00000130 c7 bb 16 df d0 cb 92 95 bf 18 a0 cf 0c c2 01 91 |................|

00000140 1b 1a a2 c6 94 f6 48 8c e0 93 9c 92 e6 e4 f1 5e |......H........^|

00000150 c3 e3 3a c1 c3 f7 2d 53 d4 91 e2 d0 1d 7a 93 b0 |..:...-S.....z..|

00000160 9b a4 9d 42 e5 09 c0 97 21 9f ac 88 ca 7e 60 bd |...B....!....~`.|

00000170 8e 65 bf 86 2b 64 e7 bc ad 12 9a c6 d3 c1 07 e7 |.e..+d..........|

00000180 24 3f 32 2e 51 fa bf 40 1a 90 44 72 36 d1 b9 ed |$?2.Q..@..Dr6...|

00000190 40 a9 80 0d 62 90 be a3 78 42 f8 b8 03 bf d0 f2 |@...b...xB......|

000001a0 7b d6 e2 25 d8 d0 35 2b 5e ff df 49 69 2e 14 ad |{..%..5+^..Ii...|

000001b0 80 9b c1 c5 d8 98 63 d7 d8 a6 a1 9b 98 94 87 2d |......c........-|

000001c0 e5 b7 9b 2a 54 6d 6f e7 02 de 65 4a 1f 77 ab 98 |...*Tmo...eJ.w..|

000001d0 d6 a5 aa 5c 3c 1a 6e 34 89 ca 19 3c c8 19 6e de |...\<.n4...<..n.|

000001e0 40 84 ff 21 e9 ea dd ca 9e a5 a5 b9 3d 43 0b 0f |@..!........=C..|

000001f0 80 0f 1e d4 d1 9a 8b a9 a4 f5 35 d3 ee 99 c1 8a |..........5.....|

00000200 45 f8 04 ee 89 08 7c dc 99 4a 4c 36 ad e4 af 24 |E.....|..JL6...$|


any help would be really appreciated as all my work is currently on the windows partition

MacBook Air, OS X Yosemite (10.10.4)

Posted on Jul 2, 2015 9:22 AM

Reply
23 replies
User profile for user: Loner T
Loner T
User level: Level 9
59,471 points

Jul 2, 2015 9:23 AM in response to Garycooke

Can you post the output of the following Terminal commands?


diskutil list

diskutil cs list

sudo gpt -vv -r show /dev/disk0

sudo fdisk /dev/disk0


The "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.

Reply
User profile for user: Garycooke
Garycooke Author
User level: Level 1
4 points

Jul 2, 2015 9:35 AM in response to Loner T

is this right?


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 75136712 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

75546352 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

76815888 42975728

119791616 117184512 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

236976128 2015

236978143 32 Sec GPT table

236978175 1 Sec GPT header

Reply
User profile for user: Garycooke
Garycooke Author
User level: Level 1
4 points

Jul 2, 2015 9:47 AM in response to Loner T

sorry

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *121.3 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_HFS Macintosh HD 38.5 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Microsoft Basic Data 60.0 GB disk0s4




No CoreStorage logical volume groups found




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 75136712 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

75546352 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

76815888 42975728

119791616 117184512 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

236976128 2015

236978143 32 Sec GPT table

236978175 1 Sec GPT header


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: AF 1023 254 63 - 1023 254 63 [ 409640 - 75136712] HFS+

3: AB 1023 254 63 - 1023 254 63 [ 75546352 - 1269536] Darwin Boot

4: 0C 1023 254 63 - 1023 254 63 [ 119791616 - 117184512] Win95 FAT32L

Reply
User profile for user: Garycooke
Garycooke Author
User level: Level 1
4 points

Jul 2, 2015 10:35 AM in response to Garycooke

TestDisk 7.0, Data Recovery Utility, April 2015

Christophe GRENIER <grenier@cgsecurity.org>

http://www.cgsecurity.org


Disk /dev/rdisk0 - 121 GB / 113 GiB - 236978176 sectors (RO)

Partition Start End Size in sectors

>P EFI System 40 409639 409600 [EFI]

P Mac HFS 409640 75546351 75136712

P Mac HFS 75546352 76815887 1269536

D MS Data 76816384 236976120 160159737

D MS Data 119791616 236976127 117184512

D Mac HFS 235708600 236978135 1269536







Structure: Ok. Use Up/Down Arrow keys to select partition.

Use Left/Right Arrow keys to CHANGE partition characteristics:

P=Primary D=Deleted

Keys A: add partition, L: load backup, T: change type, P: list files,

Enter: to continue

FAT32, blocksize=512, 209 MB / 200 MiB

Reply
User profile for user: Garycooke
Garycooke Author
User level: Level 1
4 points

Jul 2, 2015 10:52 AM in response to Garycooke

ok, so i ran wit with all options thrown up and it comes back with the same information. here are the screens:

TestDisk 7.0, Data Recovery Utility, April 2015

Christophe GRENIER <grenier@cgsecurity.org>

http://www.cgsecurity.org


Disk /dev/rdisk0 - 121 GB / 113 GiB - 236978176 sectors (RO)


The harddisk (121 GB / 113 GiB) seems too small! (< 181 GB / 168 GiB)

Check the harddisk size: HD jumpers settings, BIOS detection...


The following partitions can't be recovered:

Partition Start End Size in sectors

> MS Data 236976127 354160638 117184512

Mac HFS 236978132 238247667 1269536



TestDisk 7.0, Data Recovery Utility, April 2015

Christophe GRENIER <grenier@cgsecurity.org>

http://www.cgsecurity.org


Disk /dev/rdisk0 - 121 GB / 113 GiB - 236978176 sectors (RO)

Partition Start End Size in sectors

>P EFI System 40 409639 409600 [EFI]

P Mac HFS 409640 75546351 75136712

P Mac HFS 75546352 76815887 1269536

D MS Data 76816384 236976120 160159737

D MS Data 119791616 236976127 117184512

D Mac HFS 235708600 236978135 1269536







Structure: Ok. Use Up/Down Arrow keys to select partition.

Use Left/Right Arrow keys to CHANGE partition characteristics:

P=Primary D=Deleted

Keys A: add partition, L: load backup, T: change type, P: list files,

Enter: to continue

FAT32, blocksize=512, 209 MB / 200 MiB


TestDisk 7.0, Data Recovery Utility, April 2015

Christophe GRENIER <grenier@cgsecurity.org>

http://www.cgsecurity.org


Disk /dev/rdisk0 - 121 GB / 113 GiB - 236978176 sectors (RO)


Partition Start End Size in sectors


1 P EFI System 40 409639 409600 [EFI]

2 P Mac HFS 409640 75546351 75136712

3 P Mac HFS 75546352 76815887 1269536












[ Quit ] >[Deeper Search] [ Write ]








i'm guessing i need to run a deeper search?

Reply
User profile for user: Garycooke
Garycooke Author
User level: Level 1
4 points

Jul 2, 2015 10:57 AM in response to Loner T

this the one?


TestDisk 7.0, Data Recovery Utility, April 2015

Christophe GRENIER <grenier@cgsecurity.org>

http://www.cgsecurity.org

MS Data 76816384 236976120 160159737

Directory /


>dr-xr-xr-x 0 0 0 28-Jun-2015 19:12 .

dr-xr-xr-x 0 0 0 28-Jun-2015 19:12 ..

dr-xr-xr-x 0 0 0 13-Apr-2015 18:07 $Recycle.Bin

dr-xr-xr-x 0 0 0 13-Apr-2015 21:24 Boot

dr-xr-xr-x 0 0 0 29-Jun-2015 22:49 Dropbox

dr-xr-xr-x 0 0 0 13-Apr-2015 18:04 Intel

dr-xr-xr-x 0 0 0 14-Apr-2015 20:49 MSOCache

dr-xr-xr-x 0 0 0 14-Jul-2009 04:20 PerfLogs

dr-xr-xr-x 0 0 0 16-Apr-2015 18:50 Program Files

dr-xr-xr-x 0 0 0 26-Jun-2015 19:53 Program Files (x86)

dr-xr-xr-x 0 0 0 28-Jun-2015 19:21 ProgramData

dr-xr-xr-x 0 0 0 13-Apr-2015 17:59 Recovery

dr-xr-xr-x 0 0 0 4-May-2015 10:37 SYSOE

dr-xr-xr-x 0 0 0 28-Jun-2015 19:00 System Volume Information

Next

Use 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

Reply
User profile for user: Loner T
Loner T
User level: Level 9
59,471 points

Jul 2, 2015 11:08 AM in response to Garycooke

Yes, that is what we are looking for.

Install GPT Fdisk (aka gdisk). 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. Please notice the '+' sign in step 8 (this is called offset notation). The text in parentheses is for informational purpose to describe the action being taken. Gdisk has one-character commands except when entering numbers.


Rebuild GPT4 using start/end offsets


  1. Sudo gdisk /dev/rdisk0
  2. P (print the full list of parts)
  3. D (delete)
  4. 4 (part 4)
  5. N (new part)
  6. 4 (part 4)
  7. 76816384 ( - Start offset in sectors or the start point for Bootcamp part)
  8. +160159737 ( - Size offset, as opposed to End offset)
  9. 0700 (Windows part type)
  10. P (print list of all parts just to see what changes will be made)
  11. W (Write the new GPT)
  12. 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. Please see thesample Q&A as an example. These steps can be repeated if you make a mistake before you get to Step 12, otherwise start from Step 1 for these steps. Step 6 has numbers which are typed with a space between the numbers.

  1. Sudo gdisk /dev/rdisk0
  2. P (Print list of parts)
  3. R (Recover)
  4. O (print current Hybrid MBR)
  5. H (chooses Hybrid)
  6. Partitions numbers to be hybridized: 2 3 4
  7. Y (Good for GRUB question)
  8. N (part 2 boot flag)
  9. N (part 3 boot flag)
  10. Y (part 4 boot flag make NTFS bootable partition)
  11. O (print current Hybrid MBR)
  12. W (Write the new MBR)
  13. Y (Yes! write the new MBR)
  14. 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.

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Windows 7 Vanished after Yosemite update... help?

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