JaisEdelmann
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Q: Macbook pro retina 15 Mid 2014 - Virtualization bug

For some reason Virtualization is disabled when i boot directly up in Windows 8.1, however if i first start up OSX to the login screen and then select restart and boot into Windows i have Virtualization enabled as expected.

 

My temporary work-a-round which is terrible annoying:

  • bootup via ALT and select Ios
  • at login screen press restart
  • hold down ALT and select Windows

 

This enables virtualization, however it would be "nice" to be able to just boot directly into windows.

MacBook Pro (Retina, 15-inch, Mid 2014), Windows 8

Posted on Dec 12, 2014 12:47 AM

by Loner T,Solvedanswer
Loner T Loner T
Level 7 (24,098 points)
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A:

This is the configuration command for the Windows partition and the whole disk. Enter your password for teh following command when prompted.

 

sudo /usr/sbin/bless --device /dev/disk0s4 --setBoot --legacy --legacydrivehint /dev/disk0


Run diskutil list to find the exact partition disk0sN, where N is the exact slice for the Windows partition. System Preferences -> Startup Disk uses an additional --nextonly qualifier which is being omitted intentionally in the previous command.


Test with the Alt key and verify that it works the way you want it.

Posted on Dec 13, 2014 1:59 PM

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JaisEdelmann

Q: Macbook pro retina 15 Mid 2014 - Virtualization bug

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  • by JaisEdelmann,

    JaisEdelmann JaisEdelmann Dec 12, 2014 4:32 AM in response to Rudegar
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    Dec 12, 2014 4:32 AM in response to Rudegar

    I do understand how to use a search engine including google, unfortunately it seems you have either not read my thread or what you link to as it contains absolutely no information regarding my issue.

     

    Thanks for trying though

  • by Loner T,

    Loner T Loner T Dec 12, 2014 5:58 AM in response to JaisEdelmann
    Level 7 (24,098 points)
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    Dec 12, 2014 5:58 AM in response to JaisEdelmann

    There is a specific requirement to have Windows booted via the CSM-BIOS layer. All other means will fail. The only proper method is to

     

    1. Switch from OSX to Windows using System Preferences -> Startup Disk.

    2. Switch from Windows to OS using Control Panel -> System -> Boot Camp.

     

    Please also see Boot Camp: Set the default operating system and Re: If I reboot to Windows directly from Windows (bootcamp options), I cannot launch a vm in Hyper-V.

  • by JaisEdelmann,

    JaisEdelmann JaisEdelmann Dec 13, 2014 9:39 AM in response to Loner T
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    Dec 13, 2014 9:39 AM in response to Loner T

    I'm sorry but this cannot be working as intended.  If the CSM BIOS layer needs to boot up for Windows to work properly then this should happen pr. default and not only when you start OSX

  • by Loner T,

    Loner T Loner T Dec 13, 2014 10:15 AM in response to JaisEdelmann
    Level 7 (24,098 points)
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    Dec 13, 2014 10:15 AM in response to JaisEdelmann

    The CSM-BIOS is needed for Hyper-V, not for Windows itself. Using Alt key will also boot Windows but will bypass the CSM-BIOS layer. Windows has a pre-built device database so it does not really need CSM-BIOS, once it has been successfully installed.

     

    When you switch from OSX to Windows, the --legacydrivehint tells the Apple Bootmanager to pass control to CSM-BIOS.

     

    Is that what you are stating, or did I mis-undertsand your comment?

  • by JaisEdelmann,

    JaisEdelmann JaisEdelmann Dec 13, 2014 11:54 AM in response to Loner T
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    Dec 13, 2014 11:54 AM in response to Loner T

    My point is i dont want to start mac os in order to use my virtual machines in Windows. And if anything i should at least be able to configure that i want CSM-BIOS to start when choosing Windows as startup under alt via some configuration files?

  • by Loner T,Solvedanswer

    Loner T Loner T Dec 13, 2014 1:59 PM in response to JaisEdelmann
    Level 7 (24,098 points)
    Safari
    Dec 13, 2014 1:59 PM in response to JaisEdelmann

    This is the configuration command for the Windows partition and the whole disk. Enter your password for teh following command when prompted.

     

    sudo /usr/sbin/bless --device /dev/disk0s4 --setBoot --legacy --legacydrivehint /dev/disk0


    Run diskutil list to find the exact partition disk0sN, where N is the exact slice for the Windows partition. System Preferences -> Startup Disk uses an additional --nextonly qualifier which is being omitted intentionally in the previous command.


    Test with the Alt key and verify that it works the way you want it.

  • by JaisEdelmann,

    JaisEdelmann JaisEdelmann Dec 14, 2014 1:57 AM in response to Loner T
    Level 1 (0 points)
    Dec 14, 2014 1:57 AM in response to Loner T

    Thanks for detailing abit more

     

    Double checked partition and it was section 4 on disc 0, i've ran the above code several times, unfournantly Windows still boots with Virtualization as disabled, if i dont run OSX first

  • by Loner T,

    Loner T Loner T Dec 14, 2014 3:09 AM in response to JaisEdelmann
    Level 7 (24,098 points)
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    Dec 14, 2014 3:09 AM in response to JaisEdelmann

    Is your Windows installation an EFI Boot installation? The best check would be to see the output of

     

    sudo fdisk /dev/disk0

  • by JaisEdelmann,

    JaisEdelmann JaisEdelmann Dec 14, 2014 3:35 AM in response to Loner T
    Level 1 (0 points)
    Dec 14, 2014 3:35 AM in response to Loner T

    Disk: /dev/disk0 geometry: 60821/255/63 [977105060 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: AC 1023 254  63 - 1023 254  63 [    409640 -  235480096] <Unknown ID>

    3: AB 1023 254  63 - 1023 254  63 [ 235889736 -    1269536] Darwin Boot

    *4: 07 1023 254  63 - 1023 254  63 [ 237160448 -  739944448] HPFS/QNX/AUX



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


    jaisedelmann$ diskutil list

    /dev/disk0

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:      GUID_partition_scheme                        *500.3 GB   disk0

       1:                        EFI EFI                     209.7 MB   disk0s1

       2:          Apple_CoreStorage                         120.6 GB   disk0s2

       3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

       4:       Microsoft Basic Data BOOTCAMP                378.9 GB   disk0s4

    /dev/disk1

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                  Apple_HFS Macintosh HD           *120.2 GB   disk1

                                     Logical Volume on disk0s2

                                     7B512A63-A92C-40A0-8B32-5D9BC16A4F16

                                     Unencrypted

  • by Loner T,

    Loner T Loner T Dec 14, 2014 3:41 AM in response to JaisEdelmann
    Level 7 (24,098 points)
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    Dec 14, 2014 3:41 AM in response to JaisEdelmann

    This is a typical CSM-BIOS install. Can you check if there is a firmware update for your Mac?

  • by JaisEdelmann,

    JaisEdelmann JaisEdelmann Dec 14, 2014 3:58 AM in response to Loner T
    Level 1 (0 points)
    Dec 14, 2014 3:58 AM in response to Loner T

    In the App store theres only a 'Pages' update i haven't installed otherwise everything up 2 date. There also dont seem to be any avaliable updates via EFI and SMC firmware updates for Intel-based Macs - Apple Support for Macbook Pro Mid 2014

  • by Loner T,

    Loner T Loner T Dec 14, 2014 6:31 AM in response to JaisEdelmann
    Level 7 (24,098 points)
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    Dec 14, 2014 6:31 AM in response to JaisEdelmann

    Are you running Yosemite?

  • by JaisEdelmann,

    JaisEdelmann JaisEdelmann Dec 14, 2014 6:34 AM in response to Loner T
    Level 1 (0 points)
    Dec 14, 2014 6:34 AM in response to Loner T

    yes it's a brand new macbook pro

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