bootcamp not working after yosemite install

I followed step that I posted before and replaced numbers as you said. Can I recreate it again?

Yes, run both set of Gdisk steps, not just the first set.

AAAAA! It's working!!!

I should have checked the numbers twice, I am so sorry for taking up your time!

Thank you so so much!

If you ever come to Croatia I am buying you a beer 😀

Please backup OSX and Windows. Use separate external disks, if possible. You should also not have a large gap at the end of Bootcamp partition.

Just one more question:

Will this repeat if I update to OS X El Capitan?

There is no gap now in Disk Utility

lily_3 wrote:

Just one more question:

Will this repeat if I update to OS X El Capitan?

It may, which why I suggested good backups. 😉

Hello, I am hoping that you can perhaps help me with a similar problem. I'm in the same boat, have Yosemite and Windows XP on two separate partitions but now I cannot get Windows to boot, either from the restart option or holding alt at startup. I am able to see the partition and access the files there from the OS X side.

From terminal:

Last login: Mon Nov 9 05:12:23 on ttys000

kit-lambs-mac-pro:~ kitlamb$ diskutil list

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *640.1 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_HFS Macintosh HD 477.2 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Microsoft Basic Data BOOTCAMP 162.1 GB disk0s4

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: FDisk_partition_scheme *1.0 TB disk1

1: DOS_FAT_32 FATPASS 1.0 TB disk1s1

kit-lambs-mac-pro:~ kitlamb$ diskutil cs list

No CoreStorage logical volume groups found

kit-lambs-mac-pro:~ kitlamb$ sudo gpt -vv- -r show /dev/disk0

gpt: illegal option -- -

usage: gpt [-rv] [-p nparts] command [options] device ...

kit-lambs-mac-pro:~ kitlamb$ sudo fdisk /dev/disk0

Disk: /dev/disk0 geometry: 77825/255/63 [1250263728 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 - 931965112] HFS+

3: AB 1023 254 63 - 1023 254 63 [ 932374752 - 1269536] Darwin Boot

*4: 07 1023 254 63 - 1023 254 63 [ 933644288 - 316618752] HPFS/QNX/AUX

Apologies in advance if you've already covered this. It seems like each case is a little different. Thanks.

Fixed output of sudo gpt -vv -r show /dev/disk0 and sudo fdisk /dev/disk0:

kit-lambs-mac-pro:~ kitlamb$ sudo gpt -vv -r show /dev/disk0

Password:

gpt show: /dev/disk0: mediasize=640135028736; sectorsize=512; blocks=1250263728

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 1250263727

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 931965112 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

932374752 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

933644288 316618752 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

1250263040 655

1250263695 32 Sec GPT table

1250263727 1 Sec GPT header

kit-lambs-mac-pro:~ kitlamb$ sudo fdisk /dev/disk0

Disk: /dev/disk0 geometry: 77825/255/63 [1250263728 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 - 931965112] HFS+

3: AB 1023 254 63 - 1023 254 63 [ 932374752 - 1269536] Darwin Boot

*4: 07 1023 254 63 - 1023 254 63 [ 933644288 - 316618752] HPFS/QNX/AUX

kit-lambs-mac-pro:~ kitlamb$

Output of sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C

kit-lambs-mac-pro:~ kitlamb$ sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C

Password:

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 48 a6 37 |........?....H.7|

00000020 00 00 00 00 80 00 80 00 ff 37 df 12 00 00 00 00 |.........7......|

00000030 00 00 0c 00 00 00 00 00 7f f3 2d 01 00 00 00 00 |..........-.....|

00000040 f6 00 00 00 01 00 00 00 b1 85 f2 80 a0 f2 80 56 |...............V|

00000050 00 00 00 00 fa 33 c0 8e d0 bc 00 7c fb b8 c0 07 |.....3.....|....|

00000060 8e d8 e8 16 00 b8 00 0d 8e c0 33 db c6 06 0e 00 |..........3.....|

00000070 10 e8 53 00 68 00 0d 68 6a 02 cb 8a 16 24 00 b4 |..S.h..hj....$..|

00000080 08 cd 13 73 05 b9 ff ff 8a f1 66 0f b6 c6 40 66 |...s......f...@f|

00000090 0f b6 d1 80 e2 3f f7 e2 86 cd c0 ed 06 41 66 0f |.....?.......Af.|

000000a0 b7 c9 66 f7 e1 66 a3 20 00 c3 b4 41 bb aa 55 8a |..f..f. ...A..U.|

000000b0 16 24 00 cd 13 72 0f 81 fb 55 aa 75 09 f6 c1 01 |.$...r...U.u....|

000000c0 74 04 fe 06 14 00 c3 66 60 1e 06 66 a1 10 00 66 |t......f`..f...f|

000000d0 03 06 1c 00 66 3b 06 20 00 0f 82 3a 00 1e 66 6a |....f;. ...:..fj|

000000e0 00 66 50 06 53 66 68 10 00 01 00 80 3e 14 00 00 |.fP.Sfh.....>...|

000000f0 0f 85 0c 00 e8 b3 ff 80 3e 14 00 00 0f 84 61 00 |........>.....a.|

00000100 b4 42 8a 16 24 00 16 1f 8b f4 cd 13 66 58 5b 07 |.B..$.......fX[.|

00000110 66 58 66 58 1f eb 2d 66 33 d2 66 0f b7 0e 18 00 |fXfX..-f3.f.....|

00000120 66 f7 f1 fe c2 8a ca 66 8b d0 66 c1 ea 10 f7 36 |f......f..f....6|

00000130 1a 00 86 d6 8a 16 24 00 8a e8 c0 e4 06 0a cc b8 |......$.........|

00000140 01 02 cd 13 0f 82 19 00 8c c0 05 20 00 8e c0 66 |........... ...f|

00000150 ff 06 10 00 ff 0e 0e 00 0f 85 6f ff 07 1f 66 61 |..........o...fa|

00000160 c3 a0 f8 01 e8 09 00 a0 fb 01 e8 03 00 fb eb fe |................|

00000170 b4 01 8b f0 ac 3c 00 74 09 b4 0e bb 07 00 cd 10 |.....<.t........|

00000180 eb f2 c3 0d 0a 41 20 64 69 73 6b 20 72 65 61 64 |.....A disk read|

00000190 20 65 72 72 6f 72 20 6f 63 63 75 72 72 65 64 00 | error occurred.|

000001a0 0d 0a 4e 54 4c 44 52 20 69 73 20 6d 69 73 73 69 |..NTLDR is missi|

000001b0 6e 67 00 0d 0a 4e 54 4c 44 52 20 69 73 20 63 6f |ng...NTLDR is co|

000001c0 6d 70 72 65 73 73 65 64 00 0d 0a 50 72 65 73 73 |mpressed...Press|

000001d0 20 43 74 72 6c 2b 41 6c 74 2b 44 65 6c 20 74 6f | Ctrl+Alt+Del to|

000001e0 20 72 65 73 74 61 72 74 0d 0a 00 00 00 00 00 00 | restart........|

000001f0 00 00 00 00 00 00 00 00 83 a0 b3 c9 00 00 55 aa |..............U.|

00000200

Can you post this information on a new discussion to avoid confusion with OP?

No problem. Discussion has been relocated here: Bootcamp with Windows XP not working after Yosemite

Thanks. Posted on your discussion.