HT201456: Boot Camp 5.1: Frequently asked questions

Learn about Boot Camp 5.1: Frequently asked questions
Bhitch
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Q: My Win 8.1 bootcamp installation: Windows does not show any Thunderbolt drivers installed. It also says that drivers are missiing and links me here. How do i downlad and install the missing drivers and get my thunderbolt 2 LaCie drive to mount?

I am being directed by Win 8.1 ( Bootcamp) to the bootcamp site to get missing Thunderbolt drivers. Where are they?

MacBook Pro (Retina, 15-inch, Mid 2014), OS X Yosemite (10.10.2), Bootcamp Win 8.1

Posted on Mar 27, 2015 6:19 PM

by Loner T,Solvedanswer
Loner T Loner T
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A:

Please see System requirements to install Windows on your Mac via Boot Camp - Apple Support for your specific Mac year/model. If it says BCA, use USB2 flash disk and switch to OS X, run BCA and check only the Download Software option. It will download drivers to the USB and Boot Camp: Install or repair Boot Camp drivers.

Posted on Mar 27, 2015 6:34 PM

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Bhitch

Q: My Win 8.1 bootcamp installation: Windows does not show any Thunderbolt drivers installed. It also says that drivers are missiing ... more

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  • by Loner T,Solvedanswer

    Loner T Loner T Mar 27, 2015 6:34 PM in response to Bhitch
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    Mar 27, 2015 6:34 PM in response to Bhitch

    Please see System requirements to install Windows on your Mac via Boot Camp - Apple Support for your specific Mac year/model. If it says BCA, use USB2 flash disk and switch to OS X, run BCA and check only the Download Software option. It will download drivers to the USB and Boot Camp: Install or repair Boot Camp drivers.

  • by Bhitch,

    Bhitch Bhitch Mar 27, 2015 7:13 PM in response to Loner T
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    Mar 27, 2015 7:13 PM in response to Loner T

    Thanks.

    Apple chat led me to the driver download link after I'd thought of the BCA myself. You've confirmed for me which is the correct option.

    Thanks I'll give it a whirl once these downloads finish

  • by Bhitch,

    Bhitch Bhitch Mar 27, 2015 7:36 PM in response to Bhitch
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    Mar 27, 2015 7:36 PM in response to Bhitch

    OK

    reinstalled drivers from BCA.

    I have a firewire800 drive adapted to thunderbolt which mounts fine when plugged in BEFORE win8.1 starts. It won't mount if plugged in after Windows starts.

     

    The Thunderbolt 2 drive ( laCie Little BigDisk SSD ) won't mount at all.

  • by Loner T,

    Loner T Loner T Mar 28, 2015 10:30 AM in response to Bhitch
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    Mar 28, 2015 10:30 AM in response to Bhitch

    1. What fiel system format are the FW800 and LaCie disks?

    2. If these work properly on OS X side, can you post the output of diskutil list from the OS X Terminal?

    3. It is confusing when you say the drives mount before Windows starts. There is no OS after OS X shuts down and before Windows starts, so are you looking at the Apple BootManager?

  • by Bhitch,

    Bhitch Bhitch Mar 28, 2015 8:21 PM in response to Bhitch
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    Mar 28, 2015 8:21 PM in response to Bhitch

    1.

    The FW800 is formatted as RAID 0 HFS+

     

    The La Cie SSD arrived as RAID 0 HFS+ but I re-formatted it to NTFS still as RAID 0

     

    2.

    Last login: Sun Mar 29 12:59:49 on ttys000

    iMAC27EndCredits:~ endcredits$ 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            899.0 GB   disk0s2

       3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

       4:       Microsoft Basic Data BOOTCAMP                100.3 GB   disk0s4

    /dev/disk2

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:      GUID_partition_scheme                        *2.0 TB     disk2

       1:                        EFI EFI                     209.7 MB   disk2s1

       2:                  Apple_HFS End Credits Caldigit... 2.0 TB     disk2s2

    /dev/disk3

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:      GUID_partition_scheme                        *512.1 GB   disk3

       1:                        EFI EFI                     209.7 MB   disk3s1

       2:                 Apple_RAID                         511.8 GB   disk3s2

       3:                 Apple_Boot Boot OS X               134.2 MB   disk3s3

    /dev/disk4

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:      GUID_partition_scheme                        *512.1 GB   disk4

       1:                        EFI EFI                     209.7 MB   disk4s1

       2:                 Apple_RAID                         511.8 GB   disk4s2

       3:                 Apple_Boot Boot OS X               134.2 MB   disk4s3

    /dev/disk5

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:               Windows_NTFS EC1T                   *1.0 TB     disk5

    iMAC27EndCredits:~ endcredits$

     

    3.

    To clarify

    The FW800 disk is already plugged in to thunderbolt and Windows is booted it will show up as mounted.

    However if it is not physically plugged in until after Windows is booted - it won't mount. a usb drive or stick will but it won't unless you leave it plugged in and restart Windows. This behaviour is exactly the same on both my boot camped iMac27 and the retina 15 Macbook Pro.

     

    Apple support said if a reinstall of Bootcamp drivers doesn't work ( which it didn't ) then it is not their problem and I should get Microsoft to solve it.

    I also asked laCie for help. They said it's Apple or Microsoft's problem to solve.

    I posted at Microsoft but they haven't responded AT ALL.

     

    I think it is a Windows 8 thunderbolt driver issue. Perhaps Apple hasn't got the correct one in its bootcamp driver set.

    I found an intel thunderbolt driver at http://support.lenovo.com/us/en/downloads/ds039624

    I'm not sure what I'd break if I installed that, so I haven't done it - yet.

  • by Loner T,Helpful

    Loner T Loner T Mar 28, 2015 8:41 PM in response to Bhitch
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    Mar 28, 2015 8:41 PM in response to Bhitch

    1. A FW 800 non-RAID HFS can be read by Windows via Apple HFS+ driver included in BC drivers package. RAID volumes cannot be read.The LaCie NTFS side should be readable, any RAID HFS+ will not be readable.

    2. disk3 and disk4 as shown cannot be read by Windows.

    3. Please see Boot Camp: Thunderbolt devices not recognized after Windows 8 upgrade - Apple Support . Any FW devices connected via TB-to-FW adapters are TB devices, not FW devices. These require Windows to support the TB bridge functions. OS X supports it correctly as TB specifications intended, but the Windows driver from the BC driver package does not work. If you connect a TB display, it seems to support hot plugging. You also have CalDigit in the middle, which should be checked with them for compatibility/drivers.

    4. The Intel TB driver on the Windows side can be upgraded. I suggest you create a System Restore point before you install/remove drivers.

  • by Bhitch,

    Bhitch Bhitch Mar 29, 2015 7:43 PM in response to Bhitch
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    Mar 29, 2015 7:43 PM in response to Bhitch

    Thanks for this. It gave me the clue I needed.

    Here's where I got to and what I know.

    I reformatted the LaCie RAID 0 in OS X disk utility to 2 single volumes as NTFS

    They work in all Thunderbolt ports across both Macs and in both OS X and WIN 8.1

     

    being ambitious I then created a RAID 0 of both NTFS partitions using the disk management in Win 8.1 on my iMac27 ( Thunderbolt 1)

    ALL GOOD. Mounts just fine.

    BUT

    The 15 retina macbook pro ( Thunderbolt 2 ) in Win8.1 won't mount this.

    My conclusion: The BootCamp TB drivers for Win8.1 don't support TB2 

    I don't know if Apple, Microsoft, or Intel know this or if there is a driver update available or planned.

     

    I've just gone back to 2 simple NTFS disks and abandoned RAID 0 on the LaCie T2 SSD

  • by Loner T,

    Loner T Loner T Mar 29, 2015 8:03 PM in response to Bhitch
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    Mar 29, 2015 8:03 PM in response to Bhitch

    Does the T2 SSD have any ports other than TB?

  • by Bhitch,

    Bhitch Bhitch Mar 29, 2015 8:21 PM in response to Bhitch
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    Mar 29, 2015 8:21 PM in response to Bhitch

    No

    The LaCie model Little Big Disk SSD is a TB2 ( x2) ports only.

    I needed an external drive that was small and fast. It just seems like Win8.1 and Bootcamp are a bit behind what laCie is doing here.

    LaCie have certainly aimed this at Macbook users as it ships as RAID 0 HFS.

    They are not very upfront about T2 and Win8.1 limitations though.

    Unfortunately my primary purpose with it is Windows only using NeoDCP software.

  • by app063,

    app063 app063 May 19, 2015 8:33 AM in response to Bhitch
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    May 19, 2015 8:33 AM in response to Bhitch

    I was wondering if the solution would address the following similar situation:

    I have a 1TB LaCie External TB Drive.

    It works just fine w/ OS x 10.10.3.

    When WIN 8.1 under Bootcamp and drive connected either as TB or USB I can't write to the drive:

    “You’ll need to provide administrator permission to…” error messages when you try to copy a file to any folder location on the LaCie TB drive regardless of connection.

    I have disabled Win. UAC - no change.

    I can view the drive via WIN File Explorer in either TB or USB connection - just can't write to the drive.


    Thanks In Advance.

  • by Loner T,

    Loner T Loner T May 19, 2015 10:09 AM in response to app063
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    May 19, 2015 10:09 AM in response to app063

    Are there multiple partitions on the LaCie? What file system format(s) are used for such partition(s)?

  • by app063,

    app063 app063 May 19, 2015 5:26 PM in response to Loner T
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    May 19, 2015 5:26 PM in response to Loner T

    Does the following screen shot answer your questions:

    LaCie.png

  • by Loner T,

    Loner T Loner T May 19, 2015 6:03 PM in response to app063
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    May 19, 2015 6:03 PM in response to app063

    Your drive is formatted for OSX (JHFSx+). Windows has a read-only HFS+/JHFS+/JHFSx+ driver. You cannot use that driver to write to the LaCIE. You will need a third-party read-write driver. This is not a permissions issue at all.

     

    If you do want the ability to write to the LaCIE, create another partition on the disk which is FAT/exFAT and you can. FAT/exFAT can be shared across both OSes. You can also convert FAT/exFAT to NTFS, but then Windows can write but OSX can only read.