Rebooting to Boot Camp (W7) leaves me stuck at Apple Logo

Question

Hello,Quick background:I have a Mac Pro 2012 with Apricorn Velocity Solo x2 which has a 1TB Samsung EVO with OS X (BSD Device node - Disk 0) and 250GB Samsung EVO with Windows 7 installed (Disk 1).After I upgraded from Yosemite 10.10.5 to El Capitan 10.11.4, I get stuck at the apple logo as it should be passing control to Windows.I have tried to reboot with Boot Champ v 1.5.2 which should be El Capitan compatible, but also "manually" by going to Startup Disk and selecting BOOTCAMP Windows as startup disk. Both produce the same result.Any idea as to why this is happening now? I can&#x27;t remember switching the SSDs (disk0 and 1 and vice versa), but I do remember Windows being picky about needing to be at Disk0 slot.Kristians-Mac-Pro:~ Kristian$ diskutil list/dev/disk0 (external, physical):   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:      GUID_partition_scheme                        *1.0 TB     disk0   1:                        EFI EFI                     209.7 MB   disk0s1   2:                  Apple_HFS Macintosh SSD 1TB       999.2 GB   disk0s2   3:                 Apple_Boot Recovery HD             784.2 MB   disk0s3/dev/disk1 (external, physical):   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:     FDisk_partition_scheme                        *250.1 GB   disk1   1:               Windows_NTFS BOOTCAMP                250.1 GB   disk1s1

olsenlid · Answer

No way to edit the OP? Title should be updated to "Rebooting to Boot Camp (W7) leaves me stuck at Apple Logo after upgrading to El CapitanAnyway. I could&#x27;ve sworn that the boot camp drive was disk0 prior to upgrading to El Capitan. It is seated in the SATA0 slot on my Apricorn Velocity Solo X2, as it was instrumental in getting Windows to load and install on a separate drive.Could they have been switched "logically" when I upgraded to El Cap?I tried switching the SSDs physically, moving the W7 drive from SATA0 to SATA1. When I booted again, the machine hung at the apple logo, as if it was trying to boot with the Windows SSD, even though I was in OS X when I shut down.I rebooted, held down ALT, selected to launch OS X, and now I have this diskutil list:Kristians-Mac-Pro:~ Kristian$ diskutil list/dev/disk0 (external, physical):   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:     FDisk_partition_scheme                        *250.1 GB   disk0   1:               Windows_NTFS BOOTCAMP                250.1 GB   disk0s1/dev/disk1 (external, physical):   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:      GUID_partition_scheme                        *1.0 TB     disk1   1:                        EFI EFI                     209.7 MB   disk1s1   2:                  Apple_HFS Macintosh SSD 1TB       999.2 GB   disk1s2   3:                 Apple_Boot Recovery HD             784.2 MB   disk1s3Kristians-Mac-Pro:~ Kristian$ sudo gpt -vv -r show /dev/disk0Password:gpt show: /dev/disk0: mediasize&#x3D;250059350016; sectorsize&#x3D;512; blocks&#x3D;488397168gpt show: /dev/disk0: MBR at sector 0gpt show: /dev/disk0: Pri GPT at sector 1gpt show: /dev/disk0: Sec GPT at sector 488397167      start       size  index  contents          0          1         MBR          1          1         Pri GPT header          2         32         Pri GPT table         34       2014                2048  488392704      1  MBR part 7  488394752       2383           488397135         32         Sec GPT table  488397167          1         Sec GPT headerKristians-Mac-Pro:~ Kristian$ sudo gpt -vv -r show /dev/disk1gpt show: /dev/disk1: mediasize&#x3D;1000204886016; sectorsize&#x3D;512; blocks&#x3D;1953525168gpt show: /dev/disk1: PMBR at sector 0gpt show: /dev/disk1: Pri GPT at sector 1gpt show: /dev/disk1: 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  1951583808      2  GPT part - 48465300-0000-11AA-AA11-00306543ECAC  1951993448     1531680      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC  1953525128           7           1953525135          32         Sec GPT table  1953525167           1         Sec GPT headerKristians-Mac-Pro:~ Kristian$

Loner T · Answer

1. Are these external physical disks? El Capitan marks them as external.2. Can you move the Bootcamp disk to the internal SATA slot (not the Apricorn Velocity Solo x2) and test?

olsenlid · Answer

1. They are external in the way that they are on the PCI-e bus, rather than SATA.2. Yes, I&#x27;ll give it a shot.

olsenlid · Answer

Moving the Bootcamp SSD to the internal sata0 allowee me to boot into windows.But I&#x27;d still like to have it on my Apricorn PCI-e adapter, if only for the performance gains.

Loner T · Answer

You need to find out from the Apricorn folks about a possible firmware/driver update. Have you run any EFI/firmware updates on MP since El Capitan upgrade?You can also try disabling System Integrity Protection - About System Integrity Protection on your Mac - Apple Support - using the following steps and test.1. Boot into Local Recovery (Command+R).2. Start Utilities -&gt; Terminal.3. Type csrutil disable in Terminal and press Enter/Return.4. Type csrutil status.5. Boot normally, and type csrutil status to confirm that all individual entries are still disabled.Now test the Windows boot using the Apricorn.

olsenlid · Answer

Haven&#x27;t forgotten about this, just been busy.Will try it tomorrow. Thanks again for your help with getting me into Windows at least!

Loner T · Answer

No worries, Post when you can.