Need help with corrupted MBR on Yosemite - Windows 7 computer
Hello!
I have been trying to fix this issue for some time now and have stumbled upon many issues similar to the one I have encountered. After installing Yosemite, the windows partition of the computer could no longer be accessed. Instead, a partition called disk0s4 has replaced it. I would greatly appreciate any help because my next step is to just reinstall windows and lose everything.
Here is the output for some of the commands I have seen other people with similar issues be asked to use
diskutil list diskutil cs list sudo gpt -vv -r show /dev/disk0 sudo fdisk /dev/disk0 |
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greg-reichards-macbook-pro:~ Greg$ diskutil list /dev/disk0 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *1.0 TB disk0 1: EFI EFI 209.7 MB disk0s1 2: Apple_HFS Macintosh HD 499.3 GB disk0s2 3: Apple_Boot Recovery HD 650.0 MB disk0s3 4: Microsoft Basic Data 500.0 GB disk0s4 greg-reichards-macbook-pro:~ Greg$ diskutil cs list No CoreStorage logical volume groups found greg-reichards-macbook-pro:~ Greg$ sudo gpt -vv -r show /dev/disk0 Password: gpt show: /dev/disk0: mediasize=1000204886016; sectorsize=512; blocks=1953525168gpt 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 1953525167 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 975284408 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC 975694048 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC 976963584 976560128 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7 1953523712 1423 1953525135 32 Sec GPT table 1953525167 1 Sec GPT header greg-reichards-macbook-pro:~ Greg$ sudo fdisk /dev/disk0 Disk: /dev/disk0 geometry: 121601/255/63 [1953525168 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 - 975284408] HFS+ 3: AB 1023 254 63 - 1023 254 63 [ 975694048 - 1269536] Darwin Boot 4: 0C 1023 254 63 - 1023 254 63 [ 976963584 - 976560128] Win95 FAT32L greg-reichards-macbook-pro:~ Greg$ [Restored] Last login: Wed Aug 12 14:08:55 on ttys000 greg-reichards-macbook-pro:~ Greg$ [Restored] Last login: Fri Aug 21 12:16:44 on console gregreihardsMBP:~ Greg$ clear gregreihardsMBP:~ Greg$ diskutil list /dev/disk0 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *1.0 TB disk0 1: EFI EFI 209.7 MB disk0s1 2: Apple_HFS Macintosh HD 499.3 GB disk0s2 3: Apple_Boot Recovery HD 650.0 MB disk0s3 4: Microsoft Basic Data 500.0 GB disk0s4 gregreihardsMBP:~ Greg$ diskutil cs list No CoreStorage logical volume groups found gregreihardsMBP:~ Greg$ sudo gpt -vv -r show /dev/disk0 gpt show: /dev/disk0: mediasize=1000204886016; sectorsize=512; blocks=1953525168 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 1953525167 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 975284408 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC 975694048 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC 976963584 976560128 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7 1953523712 1423 1953525135 32 Sec GPT table 1953525167 1 Sec GPT header gregreihardsMBP:~ Greg$ sudo fdisk /dev/disk0 Disk: /dev/disk0 geometry: 121601/255/63 [1953525168 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 - 975284408] HFS+ 3: AB 1023 254 63 - 1023 254 63 [ 975694048 - 1269536] Darwin Boot 4: 0C 1023 254 63 - 1023 254 63 [ 976963584 - 976560128] Win95 FAT32L |
| sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C |
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gregreihardsMBP:~ Greg$ sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C Password: 00000000 72 6f 6f 74 63 65 72 74 2e 63 72 6c 30 54 06 08 |rootcert.crl0T..| 00000010 2b 06 01 05 05 07 01 01 04 48 30 46 30 44 06 08 |+........H0F0D..| 00000020 2b 06 01 05 05 07 30 02 86 38 68 74 74 70 3a 2f |+.....0..8http:/| 00000030 2f 77 77 77 2e 6d 69 63 72 6f 73 6f 66 74 2e 63 |/www.microsoft.c| 00000040 6f 6d 2f 70 6b 69 2f 63 65 72 74 73 2f 4d 69 63 |om/pki/certs/Mic| 00000050 72 6f 73 6f 66 74 52 6f 6f 74 43 65 72 74 2e 63 |rosoftRootCert.c| 00000060 72 74 30 13 06 03 55 1d 25 04 0c 30 0a 06 08 2b |rt0...U.%..0...+| 00000070 06 01 05 05 07 03 08 30 0d 06 09 2a 86 48 86 f7 |.......0...*.H..| 00000080 0d 01 01 05 05 00 03 82 02 01 00 10 97 8a c3 5c |...............\| 00000090 03 44 36 dd e9 b4 ad 77 db ce 79 51 4d 01 b1 2e |.D6....w..yQM...| 000000a0 74 71 5b 6d 0c 13 ab ce be 7b 8f b8 2e d4 12 a2 |tq[m.....{......| 000000b0 8c 6d 62 b8 57 02 cb 4e 20 13 50 99 dd 7a 40 e2 |.mb.W..N .P..z@.| 000000c0 57 bb af 58 9a 1c e1 1d 01 86 ac bb 78 f2 8b d0 |W..X........x...| 000000d0 ec 3b 01 ee e2 be 8f 0a 05 c8 8d 48 e2 f0 53 15 |.;.........H..S.| 000000e0 dd 4f ab 92 e4 e7 8d 6a d5 80 c1 e6 94 f2 06 2f |.O.....j......./| 000000f0 85 03 e9 91 2a 24 22 70 fb f6 fc e4 78 99 2e 0d |....*$"p....x...| 00000100 f7 07 e2 70 bc 18 4e 9d 8e 6b 0a 72 95 b8 a1 39 |...p..N..k.r...9| 00000110 9c 67 2d c5 51 0e ea 62 5c 3f 16 98 8b 20 3f e2 |.g-.Q..b\?... ?.| 00000120 07 1a 32 f9 cc 31 4a 76 31 3d 2b 72 0b c8 ea 70 |..2..1Jv1=+r...p| 00000130 3d ff 85 0a 13 df c2 0a 61 8e f0 d7 b8 17 eb 4e |=.......a......N| 00000140 8b 7f c5 35 2b 5e a3 bf eb bc 7d 0b 42 7b d4 53 |...5+^....}.B{.S| 00000150 72 21 ee 30 ca bb 78 65 5c 5b 01 17 0a 14 0e d2 |r!.0..xe\[......| 00000160 da 14 98 f5 3c b9 66 58 b3 2d 2f e7 f9 85 86 cc |....<.fX.-/.....| 00000170 51 56 e8 9d 70 94 6c ac 39 4c d4 f6 79 bf aa 18 |QV..p.l.9L..y...| 00000180 7a 62 29 ef a2 9b 29 34 06 77 1a 62 c9 3d 1e 6d |zb)...)4.w.b.=.m| 00000190 1f 82 f0 0b c7 2c bb cf 43 b3 e5 f9 ec 7d b5 e3 |.....,..C....}..| 000001a0 a4 a8 74 35 b8 4e c5 71 23 12 26 76 0b 3c 52 8c |..t5.N.q#.&v.<R.| 000001b0 71 5a 46 43 14 bc b3 b3 b0 4d 67 c8 9f 42 ff 80 |qZFC.....Mg..B..| 000001c0 79 21 80 9e 15 30 66 e8 42 12 5e 1a c8 9e 22 21 |y!...0f.B.^..."!| 000001d0 d0 43 e9 2b e9 bb f4 48 cc 2c d4 d8 32 80 4c 26 |.C.+...H.,..2.L&| 000001e0 2a 48 24 5f 5a ea 56 ef a6 de 99 9d ca 3a 6f bd |*H$_Z.V......:o.| 000001f0 81 27 74 06 11 ee 76 21 bf 9b 82 c1 27 54 b6 b1 |.'t...v!....'T..| 00000200 |
If there is anything else needed I can provide it. Once again this is my last attempt before just wiping this so I a fine with trying anything risky. Thank you all very much in advance and I look forward getting any feedback.
