Q: Windows won't boot when OS X drive is plugged in...

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Daniel miller

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Q: Windows won't boot when OS X drive is plugged in...

I've been running Windows 7 through bootcamp happily for the last several months. Everything more or less worked as it should until recently during some hardware upgrades (new processors). For some unknown reason, the boot sector on my OS X drive got corrupted and I had to reinstall 10.10. I had a Time Machine backup from that morning so all was well. Until I used Startup Disk to try and jump over to my Windows drive (Windows is installed on a separate drive, not a separate partition on the same drive as OS X). The computer reboots, gongs, then goes to a black screen and I never see the blinking cursor or anything. It just hangs on a black screen. I tried rebooting and holding option and selecting the Windows drive, same thing. If I unplug my OS X drive (an OWC PCIe SSD) Windows loads up and works fine. I'm mildly technical, but I don't know where to begin here. The Mbr is fine because windows will boot up sans OS X drive, Disk Util sees the Windows drive, Startup Manager sees the Windows drive. They just can't seem to get it to boot. Any help you lot can lend will be greatly appreciated.

2009 Mac Pro

3.46 Ghz Westmere

32GB RAM

GTX 780

OS X 10.10 on OWC PCIe SSD

Windows 7 on Samsung 840 Pro running through CalDigit FASTA-6GU3 Pro (for SATA 3 speed)

I know thats a bunch of mod-ish stuff, but like I said, Windows and Boot Camp were all playing nice earlier this week. Also I already zipped the PRAM.

Mac Pro, OS X Yosemite (10.10.2)

Posted on Feb 15, 2015 4:57 PM

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Q: Windows won't boot when OS X drive is plugged in...

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by Loner T,

Loner T Feb 15, 2015 5:28 PM in response to Daniel miller
Level 7 (24,800 points)

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Feb 15, 2015 5:28 PM in response to Daniel miller

The MBR on the Windows disk is suspect.

Can you post the output of the following commands for the Windows disk?

diskutil list
diskutil cs list
sudo gpt -vv -r show /dev/diskN (N needs to be substituted for the appropriate number that corresponds to the Windows disk from the first command output).
sudo fdisk /dev/diskN (N needs to be substituted for the appropriate number that corresponds to the Windows disk from the first command output).
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by Daniel miller,

Daniel miller Feb 15, 2015 5:41 PM in response to Loner T
Level 1 (5 points)

Feb 15, 2015 5:41 PM in response to Loner T

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 Time Machine            999.9 GB   disk0s2
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *256.1 GB   disk1
   1:                        EFI EFI                     209.7 MB   disk1s1
   2:       Microsoft Basic Data BOOTCAMP                255.8 GB   disk1s2
/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *256.1 GB   disk2
   1:                        EFI EFI                     209.7 MB   disk2s1
   2:                  Apple_HFS TRANSFER                255.7 GB   disk2s2
/dev/disk3
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *479.9 GB   disk3
   1:                        EFI EFI                     209.7 MB   disk3s1
   2:                  Apple_HFS Macintosh SSD           479.1 GB   disk3s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk3s3
/dev/disk4
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *2.0 TB     disk4
   1:                        EFI EFI                     209.7 MB   disk4s1
   2:                 Apple_RAID                         2.0 TB     disk4s2
   3:                 Apple_Boot Boot OS X               134.2 MB   disk4s3
/dev/disk5
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *2.0 TB     disk5
   1:                        EFI EFI                     209.7 MB   disk5s1
   2:                 Apple_RAID                         2.0 TB     disk5s2
   3:                 Apple_Boot Boot OS X               134.2 MB   disk5s3
/dev/disk6
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *2.0 TB     disk6
   1:                        EFI EFI                     209.7 MB   disk6s1
   2:                 Apple_RAID                         2.0 TB     disk6s2
   3:                 Apple_Boot Boot OS X               134.2 MB   disk6s3
/dev/disk7
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *2.0 TB     disk7
   1:                        EFI EFI                     209.7 MB   disk7s1
   2:                 Apple_RAID                         2.0 TB     disk7s2
   3:                 Apple_Boot Boot OS X               134.2 MB   disk7s3
/dev/disk8
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS CLUTCH                 *8.0 TB     disk8
/dev/disk9
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *64.3 GB    disk9
   1:               Windows_NTFS                         64.3 GB    disk9s1

diskutil cs list:
No CoreStorage logical volume groups found

sudo gpt -vv -r show /dev/disk1:
gpt show: /dev/disk1: mediasize=256060514304; sectorsize=512; blocks=500118192
gpt show: /dev/disk1: Suspicious MBR at sector 0
gpt show: /dev/disk1: Pri GPT at sector 1
gpt show: /dev/disk1: Sec GPT at sector 500118191
      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       2008
     411648 499705856      2 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
500117504        655
500118159         32         Sec GPT table
500118191          1         Sec GPT header

sudo fdisk /dev/disk1:
Disk: /dev/disk1 geometry: 31130/255/63 [500118192 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: 07   25 159   7 - 1023 254 63 [    411648 - 499705856] HPFS/QNX/AUX
3: 00    0   0   0 -    0   0   0 [         0 -          0] unused
4: 00    0   0   0 -    0   0   0 [         0 -          0] unused
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by Loner T,

Loner T Feb 15, 2015 5:57 PM in response to Daniel miller
Level 7 (24,800 points)

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Feb 15, 2015 5:57 PM in response to Daniel miller

Have you recently created new Apple RAID configurations? As a test, are you able to remove the RAID disks from the MP and test?
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by Daniel miller,

Daniel miller Feb 17, 2015 7:51 PM in response to Loner T
Level 1 (5 points)

Feb 17, 2015 7:51 PM in response to Loner T

I had the RAID up and running for almost as long as Ive been running Windows 7. I use Mac Drive so I can access the RAID over on the windows side.
I tried your idea: pulled the raid drives and then tried to boot into windows from OS X using Startup Disk. No dice, same problem.
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by Loner T,

Loner T Feb 17, 2015 10:14 PM in response to Daniel miller
Level 7 (24,800 points)

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Feb 17, 2015 10:14 PM in response to Daniel miller

Can you post the output of sudo dd if=/dev/rdisk1s2 count=1 2>/dev/null | hexdump -C ?

Are there any GPU firmware updates that had to be applied due to the processor upgrades?

MacDrive can interfere with the Apple NTFS driver. If you boot the MP and hold the Alt key, does Windows show up as an option?
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by Daniel miller,

Daniel miller Feb 17, 2015 10:38 PM in response to Loner T
Level 1 (5 points)

Feb 17, 2015 10:38 PM in response to Loner T

Terminal command returned this:
00000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000200

No GPU firmware updates, I did have the GTX flashed by mac vid cards, but that was middle of last year.

When I hold option the windows drive does show up.Also, for S&G's I went ahead and did bootrec.exe /fixmbr and fixboot. Both operations came back that they were completed successfully, but upon plugging my OS X drive back in, the problem persisted.
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by Loner T,

Loner T Feb 18, 2015 6:03 AM in response to Daniel miller
Level 7 (24,800 points)

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Feb 18, 2015 6:03 AM in response to Daniel miller

Daniel miller wrote:

Terminal command returned this:

00000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|

*

00000200

This was the expected output...

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 50 06 0f |........?....P..|

00000020 00 00 00 00 80 00 80 00 ff df c8 0e 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 e1 b7 f7 ec f4 f7 ec 2a |...............*|

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 52 11 16 68 09 00 66 53 66 53 66 |h...hR..h..fSfSf|

00000100 55 16 16 16 68 b8 01 66 61 0e 07 cd 1a 33 c0 bf |U...h..fa....3..|

00000110 0a 13 b9 f6 0c fc f3 aa e9 fe 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 a1 f6 01 e8 09 00 |...u...fa.......|

00000170 a1 fa 01 e8 03 00 f4 eb fd 8b f0 ac 3c 00 74 09 |............<.t.|

00000180 b4 0e bb 07 00 cd 10 eb f2 c3 0d 0a 41 20 64 69 |............A di|

00000190 73 6b 20 72 65 61 64 20 65 72 72 6f 72 20 6f 63 |sk read error oc|

000001a0 63 75 72 72 65 64 00 0d 0a 42 4f 4f 54 4d 47 52 |curred...BOOTMGR|

000001b0 20 69 73 20 63 6f 6d 70 72 65 73 73 65 64 00 0d | is compressed..|

000001c0 0a 50 72 65 73 73 20 43 74 72 6c 2b 41 6c 74 2b |.Press Ctrl+Alt+|

000001d0 44 65 6c 20 74 6f 20 72 65 73 74 61 72 74 0d 0a |Del to restart..|

000001e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|

000001f0 00 00 00 00 00 00 8a 01 a7 01 bf 01 00 00 55 aa |..............U.|

00000200
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by Daniel miller,

Daniel miller Feb 18, 2015 8:18 AM in response to Loner T
Level 1 (5 points)

Feb 18, 2015 8:18 AM in response to Loner T

Hmmm, ok. I tried it again, double checking that I did in fact copy and paste the whole command. Got this:

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 06 00 |........?....H..|
00000020 00 00 00 00 80 00 80 00 ff e7 c8 1d 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 f5 38 0f 6c 6b 0f 6c 62 |.........8.lk.lb|
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
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by Loner T,

Loner T Feb 18, 2015 8:29 AM in response to Daniel miller
Level 7 (24,800 points)

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Feb 18, 2015 8:29 AM in response to Daniel miller

The NTFS header is valid.

1. With the OWC SSD plugged in, can you look at System Report -> SATA and look at both disks and look at the SATA speed.
2. You can also try SMC reset - Intel-based Macs: Resetting the System Management Controller (SMC) - Apple Support to see if it addresses issues.
3. Can you try Safe Boot for Windows - http://windows.microsoft.com/en-us/windows/start-computer-safe-mode#start-comput er-safe-mode=windows-7 ?
4. It may be worth a Safe Mode boot of OSX - OS X: What is Safe Boot, Safe Mode? - Apple Support.
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by Daniel miller,

Daniel miller Feb 18, 2015 8:44 AM in response to Loner T
Level 1 (5 points)

Feb 18, 2015 8:44 AM in response to Loner T

BOOTCAMP:
Generic AHCI Controller:

Vendor: Generic
Product: AHCI Controller
Link Speed: 6 Gigabit
Negotiated Link Speed: 6 Gigabit
Physical Interconnect: SATA
Description: AHCI Version 1.20 Supported

Samsung SSD 840 PRO Series:

Capacity: 256.06 GB (256,060,514,304 bytes)
Model: Samsung SSD 840 PRO Series
Revision: DXM06B0Q
Serial Number: S1ATNSAF616981W
Native Command Queuing: Yes
Queue Depth: 32
Removable Media: Yes
Detachable Drive: No
BSD Name: disk1
Medium Type: Solid State
TRIM Support: Yes
Partition Map Type: GPT (GUID Partition Table)
S.M.A.R.T. status: Verified
Volumes:
EFI:
Capacity: 209.7 MB (209,715,200 bytes)
BSD Name: disk1s1
Content: EFI
Volume UUID: 0E239BC6-F960-3107-89CF-1C97F78BB46B
BOOTCAMP:
Capacity: 255.85 GB (255,849,398,272 bytes)
Available: 37.47 GB (37,472,825,344 bytes)
Writable: No
File System: NTFS
BSD Name: disk1s2
Mount Point: /Volumes/BOOTCAMP
Content: Microsoft Basic Data
Volume UUID: DB3E4B00-0E50-4792-9E14-DE779E5703AF

OS X:
Generic AHCI Controller:

Vendor: Generic
Product: AHCI Controller
Link Speed: 6 Gigabit
Negotiated Link Speed: 6 Gigabit
Physical Interconnect: SATA
Description: AHCI Version 1.20 Supported

OWC Mercury Accelsior PCIe SSD:

Capacity: 479.95 GB (479,946,997,760 bytes)
Model: OWC Mercury Accelsior PCIe SSD
Revision: MV.R00-0
Serial Number: 09f206fce9d60000
Native Command Queuing: Yes
Queue Depth: 32
Removable Media: Yes
Detachable Drive: No
BSD Name: disk0
Medium Type: Rotational
Partition Map Type: GPT (GUID Partition Table)
S.M.A.R.T. status: Not Supported
Volumes:
EFI:
Capacity: 209.7 MB (209,715,200 bytes)
BSD Name: disk0s1
Content: EFI
Volume UUID: 0E239BC6-F960-3107-89CF-1C97F78BB46B
Macintosh SSD:
Capacity: 479.09 GB (479,087,239,168 bytes)
Available: 191.02 GB (191,017,906,176 bytes)
Writable: Yes
File System: Journaled HFS+
BSD Name: disk0s2
Mount Point: /
Content: Apple_HFS
Volume UUID: 92300E90-FEC0-3AC5-8CA1-0F07C76F5BD8
Recovery HD:
Capacity: 650 MB (650,002,432 bytes)
BSD Name: disk0s3
Content: Apple_Boot
Volume UUID: DD6B1C50-C5CB-3D98-BFCA-436549FC51B2
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by Daniel miller,

Daniel miller Feb 18, 2015 9:07 AM in response to Loner T
Level 1 (5 points)

Feb 18, 2015 9:07 AM in response to Loner T

I reset the SMC as outlined in the link you shared, same problem.

As for booting into safe mode, would the purpose be to boot into safe mode and then try to use Startup Disk to jump over to Windows?
When I used the bootrec.exe /fixmbr I had to boot into safe mode in Windows, which required I pull the OWC drive.

When only the Windows drive is plugged in the computer gongs, then flashes a screen showing the 2 drives plugged into the FASTA 6 card, then shows the blinking cursor where I would hit f8. However, when both drives are plugged in, I never see the screen showing both FASTA attached drives and I never see the blinking cursor where I would hit f8. So with both drives attached I can't boot into safe mode.

Thanks for digging into this with me, your help is much appreciated.
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by Loner T,

Loner T Feb 18, 2015 9:38 AM in response to Daniel miller
Level 7 (24,800 points)

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Feb 18, 2015 9:38 AM in response to Daniel miller

1. According to http://www.caldigit.com/Fasta-6GU3pro/ there are two internal SATA interfaces. What is the current order of the OWC and 840 on this card?
2. Do you have an available SATA slot on the main board that the 840Pro can be connected to, removing it from the CalDigit FASTA?
3. http://manuals.info.apple.com/MANUALS/0/MA914/en_US/Mac_Pro_Early2009_4707_UG.pd f has four (4) slots. If you do not have a free slot, swap one of the main bay slots with the FASTA 840Pro and put the 840Pro in the now available slot.
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by Daniel miller,

Daniel miller Feb 18, 2015 9:46 AM in response to Loner T
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Feb 18, 2015 9:46 AM in response to Loner T

The OWC drive is The Mercury Accelsior ( http://eshop.macsales.com/shop/SSD/PCIe/OWC/Mercury_Accelsior/RAID ), it lives on its own PCIe slot (Slot 3). The Fasta card is in Slot 2. Ill try plugging the Bootcamp drive into one of the original data connectors and report back.
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by Daniel miller,

Daniel miller Feb 18, 2015 10:03 AM in response to Loner T
Level 1 (5 points)

Feb 18, 2015 10:03 AM in response to Loner T

Ok, tried plugging Bootcamp Drive into original SATA slot, same problem.
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Q: Windows won't boot when OS X drive is plugged in...

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by Daniel miller,

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by Daniel miller,

by Loner T,

by Daniel miller,

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by Daniel miller,

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by Daniel miller,

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