BOOTCAMP shows up in startup disk preferences but not showing up in bootloader when holding option key.

Question

BOOTCAMP shows up in startup disk preferences but not showing up in bootloader when holding option key.

Hello,

Late 2012 27inch iMAC.

I'm running Yosemite 10.10.4 on an external SSD. This is working fine.

I also have an internal HDD which contains an old install of Yosemite and a BOOTCAMP install of Windows 7 which now doesn't seem to work.

I cannot boot into bootcamp anymore. (I think it stopped working when I created a new partition on the HDD for time machine)

The bootcamp drive does not appear in the bootloader when I hold the option key on startup.

HOWEVER the bootcamp drive DOES appear in the startup disk pref pane (this happened when I deleted TUXERA NTFS).

When I try to restart into the bootcamp drive from the startup disk pref pane I get the following error in DOS:

bootable device --- insert boot disk and press any key

Here's the readout from rEFIT (an app someone told me I should download):

*** Report for internal hard disk ***

Current GPT partition table:

# Start LBA End LBA Type

1 40 409639 EFI System (FAT)

2 409640 1672013823 Mac OS X HFS+

3 1672275968 1953523711 Basic Data

Current MBR partition table:

# A Start LBA End LBA Type

1 1 409639 ee EFI Protective

2 409640 1672013823 af Mac OS X HFS+

3 1672275968 1953523711 0c FAT32 (LBA)

MBR contents:

Boot Code: Unknown, but bootable

Partition at LBA 40:

Boot Code: None (Non-system disk message)

File System: FAT32

Listed in GPT as partition 1, type EFI System (FAT)

Partition at LBA 409640:

Boot Code: None

File System: HFS Extended (HFS+)

Listed in GPT as partition 2, type Mac OS X HFS+

Listed in MBR as partition 2, type af Mac OS X HFS+

Partition at LBA 1672275968:

Boot Code: Windows BOOTMGR (Vista)

File System: NTFS

Listed in GPT as partition 3, type Basic Data

Listed in MBR as partition 3, type 0c FAT32 (LBA)

Can anyone help me?

Thanks!

Best,

J

iMac, OS X Yosemite (10.10.5)

Posted on Sep 1, 2015 4:42 PM

Reply

Answer 1

Sep 1, 2015 4:56 PM in response to jimmytruelove

P.S. more terminal readouts from the following:

1. diskutil list

2. sudo fdisk /dev/disk0

3. sudo gpt -v -r show /dev/disk0

JSVBs-iMac:~ jsvbostock$ 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 Mac HD 855.9 GB disk0s2

3: Microsoft Basic Data Win HD 144.0 GB disk0s3

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *126.0 GB disk1

1: EFI EFI 209.7 MB disk1s1

2: Apple_HFS Macintosh SSD 125.2 GB disk1s2

3: Apple_Boot Recovery HD 650.0 MB disk1s3

JSVBs-iMac:~ jsvbostock$

JSVBs-iMac:~ jsvbostock$ sudo fdisk /dev/disk0

Password:

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 - 1671604184] HFS+

3: 0C 1023 254 63 - 1023 254 63 [1672275968 - 281247744] Win95 FAT32L

4: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

JSVBs-iMac:~ jsvbostock$ sudo gpt -v -r show /dev/disk0

gpt show: /dev/disk0: mediasize=1000204886016; sectorsize=512; blocks=1953525168

gpt show: /dev/disk0: Suspicious MBR at sector 0

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 1671604184 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

1672013824 262144

1672275968 281247744 3 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

1953523712 1423

1953525135 32 Sec GPT table

1953525167 1 Sec GPT header

Reply

Answer 2

Loner T

Level 9

59,513 points

Sep 1, 2015 7:48 PM in response to jimmytruelove

1. Please post the output of

sudo dd if=/dev/rdisk0s3 count=1 2>/dev/null | hexdump -C

This will show the first block of the header.

2. Has your Windows partition ever been re-sized?

Reply

Answer 3

Sep 1, 2015 9:02 PM in response to Loner T

Hello there!

Thank you very much for your quick response!

1)

JSVBs-iMac:~ jsvbostock$ sudo dd if=/dev/rdisk0s3 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 e8 ac 63 |........?......c|

00000020 00 00 00 00 80 00 80 00 ff 7f c3 10 00 00 00 00 |................|

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 d2 63 cc f2 70 cc f2 88 |.........c..p...|

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.|

2) As far as I can remember I don't think I ever resized the windows partition directly. However, when I started using the external SSD for my Yosemite install and startup disk, I remember creating a THIRD partition for time machine on the HDD... I also deleted the old yosemite install that was on the "Mac HD" partition. (I recently reinstalled Yosemite on there). So until recently there was 3 partitions on the internal HDD:

Mac HD (where I used to have my Yosemite install but this was deleted at one stage)

Time Machine (a new 3rd partition - which I deleted yesterday)

Win HD (bootcamp)

(In that order on disk utility)

Hope this helps,

THanks so much!

Best,
James

Reply

Answer 4

Loner T

Level 9

59,513 points

Sep 2, 2015 5:07 AM in response to jimmytruelove

Let us try the simpler fix first. Please ignore the i386 MBR error, but not any others.

sudo fdisk -e /dev/disk0

p

setpid 3

07

flag 3

p

w

y

Reboot and test.

Reply

Answer 5

Sep 2, 2015 2:24 PM in response to Loner T

Attempted this, restarted, held down option, windows drive appeared (GREAT!). Tried to boot to windows, got to windows 7 login screen.

Confronted with startup repair window:

http://i.imgur.com/ErZ0R6L.jpg

See image.

Hung here for a half hour.

Any ideas? Was I too impatient?

Many thanks for all your help on this,

All the best,

James

Reply

Answer 6

Loner T

Level 9

59,513 points

Sep 2, 2015 3:07 PM in response to jimmytruelove

Is the Repair still running?

Reply

Answer 7

Sep 2, 2015 3:09 PM in response to Loner T

Hello Loner T!

I stopped after half an hour or so to come back here and ask whether you think it's worth leaving it for longer repairing?

Shall I try again and leave it overnight?

Thanks!

J

Reply

Answer 8

Loner T

Level 9

59,513 points

Sep 2, 2015 3:15 PM in response to jimmytruelove

Half an hour is excessive. You can read logs on the Windows partition from the OSX side.

Can you look for the log in

Startup Repair Log

After Startup Repair has run, a text log with diagnostic information and repair results is generated. This log file is located at %WINDIR%\System32\LogFiles\Srt\SrtTrail.txt.

Please see https://technet.microsoft.com/en-us/library/Dd744291(v=WS.10).aspx as reference.

Reply