Bootcamp partition missing on startup

Thanks for the response.

Loner T wrote:

The Windows installation requires several reboots. Did all the reboots complete successfully? Did the BC drivers get installed correctly?

The computer only restarted once during the process, and I was never brought to a screen to install the drivers. The very first restart brought me to the blank black screen.

Was EFI Boot used to install on the SSD? Your later statement about EFI boot indicates that is the case, but need to confirm.

I used Boot Camp Assistant to begin the install -- I selected to partition the SSD for sole use with Windows, and it automatically restarted and brought me to the installation screen. Another odd thing was that the resolution was incorrect upon this restart, as the screen was stretched a bit horizontally.

This is expected. Each disk has it's own independent EFI. BCA updates the EFI of disk0, which points to the SSD, which you erased. There is no way to EFI boot Windows from the 1TB HDD. BIOS/MBR is a completely different path.

I'm a bit confused. BCA updates disk0 EFI even though the SSD was mounted as disk1?

Winclone has the ability to restore EFI or MBR. It depends on the specific model. Your specific model supports both approaches. You can verify this using Applications -> Utilities -> Console and typing "Winclone" in the top right search box and check the logs. It restored EFI, which is why you see EFI Boot when using Alt/Opt.

This because EFI boot is now causing GPU issues. Is yours a 13-in or a 15-in MBP?

I have a 13 inch MBP. What steps should I follow to properly restore booting to the windows partition on my HDD?

Thanks again for the detailed reply, I seem to have a better understanding of the issue now.

So just to make sure, to repair the bootcamp partition on my HDD, I should:

1. Boot to the win10 install USB
2. Repair disk using bootrec.exe (I'm not sure of the exact process, but is this correct?)

Once that is complete, if I want to actually install Windows 10 on my SSD, I must:

1. Switch the hard drives in the bay (such that the new SSD is in the main bay and HDD is in the optical drive bay).
2. Install Windows 10 on the SSD (do I use BCA to begin the installation, or boot directly to the USB?)
3. Switch back the disks (If I want -- do you know if keeping the Mac OS X drive in the optical bay will cause issues?)
4. Boot into the bootcamp partition on my main hard drive and apply a registry fix suggested by Twocanoes (https://www.youtube.com/watch?v=9RHjVAQHb3E)
5. Boot into OS X and use Winclone to restore a current image of the HDD partition to the new SSD
6. Either erase the old bootcamp partition or disconnect the HDD to prevent issues upon reboot
7. Boot into Winclone to check that it has successfully transferred
8. Erase the old bootcamp partition on the HDD

Forgive me if I am not understanding correctly -- is there a better way to go about this?

I've already disconnected the SATA cable, so I should be good. I'll go ahead and try using startup repair/bootrec.exe.

In regards to your second question, I plan on keeping the second SSD either in the Optibay or the main hard drive bay. Ultimately, I want to end up with a 1TB HDD purely for mac, and the 500GB SSD purely for windows. I contacted Twocanoes because I was not able to run sysprep on my upgraded version of Windows 10, and wanted to know if it was necessary for a successful migration. They responded that they believe I can skip the sysprep process if I am only migrating from a HDD to a SSD. Regarding the video, this is what they said:

"There is a registry fix proposed by one of our customers that forces Windows to rescan the bus after the migration and load the correct SSD storage drivers. See around 2 minutes into this video for details (this video described running Windows from an external drive, but the registry fix applies to migration to internal drives when changing from HDD to SSD)"

They also advised that once the migration is complete, I must either delete the original partition or remove the HDD before booting to the new partition to prevent any problems. It was mentioned that some macs don't reliably boot Windows from the optical bay, so it may be necessary to switch them around.

I apologize for convoluting the subject so much, but I am curious as to whether or not it is possible to do what I am trying to do.

Another update:

I had forgotten to mention that upon booting to the WININSTALL usb, the installer would show a popup that read something along the lines of "It looks like you began an upgrade and booted to installation media. If you would like to proceed with the upgrade, press yes and remove the media, press no to perform a clean install."

I didn't know how to get rid of this, so I opted for the somewhat easier route of deleting my existing BOOTCAMP partition, making a new one, and restoring my winclone image. I've just done this, following the steps here:

http://twocanoes.com/support/winclone/resizing-a-bootcamp-partition-with-winclon ehttp://

However, I get the exact same issue. The windows partition doesn't show when booting with option held down, only Macintosh HD, EFI Boot, and the Recovery drive. When selecting EFI boot, it just takes me to what looks like normal Mac OS X. What else could be wrong here? Not sure if these are useful:

MacBook-Pro:~ CE$ 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 839.9 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Microsoft Basic Data BOOTCAMP 159.5 GB disk0s4

MacBook-Pro:~ CE$ diskutil cs list

No CoreStorage logical volume groups found

MacBook-Pro:~ CE$ 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 - 1953525167] <Unknown ID>

2: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

3: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

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

MacBook-Pro:~ CE$ sudo gpt -vv -r show /dev/disk0

Password:

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

gpt show: /dev/disk0: PMBR 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 PMBR

1 1 Pri GPT header

2 32 Pri GPT table

34 6

40 409600 1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

409640 1640353384 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

1640763024 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

1642032560 592

1642033152 311490560 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

1953523712 1423

1953525135 32 Sec GPT table

1953525167 1 Sec GPT header

I should have been more clear -- my last steps were simply to try and get my original HDD windows partition working, with it mounted in the main bay. Making the drive Legacy bootable after restoring with Winclone got it back up and running. Here is my current situation:

• 1 TB HDD mounted in main bay, with working Mac OS X and Windows partitions
• 500 GB SSD (empty) mounted in Optibay, but disconnected from the logic board

My original issue (being unable to boot into my HDD windows partition) is solved, but now I would like to migrate this partition to the SSD. What procedure should I take?

I am mainly confused whether or not I need to install Windows on the SSD before migrating -- it sounds like I don't. However, do I apply the registry change proposed by Twocanoes prior to imaging the HDD partition? From my understanding, they suggest doing the following:

1. Back up HDD windows partition
2. Apply registry change to HDD windows partition
3. Boot into OS X and image the HDD windows partition
4. Restore this image to the completely blank SSD
5. Delete the HDD windows partition, making the HDD exclusively OS X
6. This should result in a Windows-exclusive SSD and an OS X-exclusive HDD.

It sounds like I first need to switch the hard drives, such that the HDD is in the Optibay and the SSD is in the main bay.

Thanks for all of your help. What would you recommend doing for step 5? My understanding is that I can either use disk utility or BCA.

Upon trying to backup my windows partition, I've encountered another issue. I'm trying to use the windows "Backup and Restore (Windows 7) program to backup my windows partition onto an external drive, but am getting error 0x81000019 - A shadow copy could not be created. Please check "VSS" and "SPP" application event logs for more information.

Details: The shadow copy provider had an error. Check the System and Application event logs for more information.

I've already gone into services and set VSS to automatic start and manually started the service, which did not help. I've searched online, but can't find anything that has worked. Any tips?