Mac Pro 5,1 and Windows 10 boot issue

Hi Loner T,

Thank you for your response.

I had a look into System Prefs with RAID array in, and Boot Camp is there. I tried to set the startup disk to Boot Camp then it showed "No bootable device, please insert a bootable device and press any key to continue"

With RAID removed, it shows windows black screen again.

I personally think it has nothing to do with the RAID array, more like ELC because whenever I temporarily remove ELC drive bay, windows would boot fine.

I found this article yesterday, do you think it has anything to do with my case?

http://blog.twocanoes.com/post/130271331763/how-el-capitan-boot-camp-is-affected -by-apples

Thanks again

Thanks, I've disabled SIP since I first upgraded to El Capitan to run some apps. However, with either SIP disabled or enabled still no help. I've seen your help on the other thread (with GPT fdisk thingy), would you like me to do some testing so you can see what's going on? I'm not verse on Terminal but I'll try.

Much appreciate your help!

Thanks. Here's the output from your listed commands:

Last login: Mon Oct 12 19:39:03 on console

MacPro:~ Edward$ diskutil list

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *2.0 TB disk0

1: Windows Recovery 314.6 MB disk0s1

2: EFI NO NAME 104.9 MB disk0s2

3: Microsoft Reserved 134.2 MB disk0s3

4: Microsoft Basic Data BOOTCAMP 1.1 TB disk0s4

5: Microsoft Basic Data DATA 943.7 GB disk0s5

/dev/disk1 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *2.0 TB disk1

1: EFI EFI 209.7 MB disk1s1

2: Apple_RAID 2.0 TB disk1s2

3: Apple_Boot Boot OS X 134.2 MB disk1s3

/dev/disk2 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *2.0 TB disk2

1: EFI EFI 209.7 MB disk2s1

2: Apple_HFS Macintosh HD 1.7 TB disk2s2

3: Apple_Boot Recovery HD 650.0 MB disk2s3

4: Apple_HFS Macintosh SL 262.0 GB disk2s4

/dev/disk3 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *2.0 TB disk3

1: EFI EFI 209.7 MB disk3s1

2: Apple_RAID 2.0 TB disk3s2

3: Apple_Boot Boot OS X 134.2 MB disk3s3

/dev/disk4 (internal, virtual):

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS Macintosh RAID +2.0 TB disk4

MacPro:~ Edward$ sudo fdisk /dev/disk0

Password:

Disk: /dev/disk0 geometry: 243201/255/63 [3907029168 sectors]

sudo gpt Signature: 0xAA55

Starting Ending

#: id cyl hd sec - cyl hd sec [ start - size]

------------------------------------------------------------------------

1: EE 0 0 2 - 1023 255 63 [ 1 - 4294967295] <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

MacPro:~ Edward$ sudo gpt -vv -r show /dev/disk0

gpt show: /dev/disk0: mediasize=2000398934016; sectorsize=512; blocks=3907029168

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 3907029167

start size index contents

0 1 PMBR

1 1 Pri GPT header

2 32 Pri GPT table

34 2014

2048 614400 1 GPT part - DE94BBA4-06D1-4D40-A16A-BFD50179D6AC

616448 204800 2 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

821248 262144 3 GPT part - E3C9E316-0B5C-4DB8-817D-F92DF00215AE

1083392 2062745600 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

2063828992 1843197952 5 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

3907026944 2191

3907029135 32 Sec GPT table

3907029167 1 Sec GPT header

MacPro:~ Edward$

I will run a SMC & NVRAM Reset now and see if it helps.

It's a 2010 2.66ghz model. I installed Windows 8 initially via USB, with 3 of the drives that I mentioned above taken out (it wouldn't install with all the drives in). Then I just upgraded to W10 via Microsoft Auto Update scheme.

...So, I've just done a SMC & NVRAM reset. Interestingly, W10 goes into auto repair mode (blue screen). Then I've done a restart without any troubleshooting. It then boot fine into W10. Then I rebooted into Mac, restarted to reboot into W10 again. Voilà, windows booted fine the second time! It seems SMC & NVRAM had done the trick. I will monitor it and see how it behaves in the next few days.

Again many thanks for the SMC & NVRAM tip, sometimes the simplest thing that I'd never think of!

Best,

LT

Thanks, I think that's what twocanoes blog mentioned re. SIP is implemented using NVRAM. So does that mean after this NVRAM reset that I've just ran, Windows should boot fine now? I will try it with SIP enabled in the next few days.

Hi Loner T,

I gave Windows another boot today, but it had refused to boot. It showed the black screen again for the last 20 minutes. I tried reseting SMC & NVRAM like yesterday (which consequently enable SIP), though it doesn't work. Really strange. Is there anything else I'm missing? Is there anything wrong with my drive that ELC doesn't agree with?

Thank you!

Not that I'm aware off since yesterday. It's interesting that you mentioned updates, I normally have trouble booting up after Windows update as well – that I had to removed Mac drive in order to boot into windows. I'm gonna do my workaround now and see if it installed anything yesterday.

I've just checked Windows updates, there are 2 windows defender updates since yesterday. This shouldn't be the culprit thou, right?