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Grub2win change default boot

Van
2016-02-24
2016-02-27
  • Van

    Van - 2016-02-24

    Hello.

    I mistakenly changed the default boot to something that does not boot correctly. It takes me to a gnu grub shell. Is there a way to change the boot default to Windows 10 or boot it from the shell? Thanks

     
    • Drummer

      Drummer - 2016-02-24

      Hi Van,

      Couple of questions so I can help.

      Is this a BIOS or EFI machine?

      Where did you change the default boot? In Grub2Win or Linux or elsewhere?

      Does the Grub2Win menu come up?

      Please let me know,

      Dave

      On Feb 24, 2016, at 12:26 PM, Van urabut@users.sf.net wrote:

      Hello.

      I mistakenly changed the default boot to something that does not boot correctly. It takes me to a gnu grub shell. Is there a way to change the boot default to Windows 10 or boot it from the shell? Thanks

      Grub2win change default boot

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  • Van

    Van - 2016-02-24

    EFI changed the default boot in Grub2win.     Grub2win never shows up. I'm pretty sure I changed the default boot to a linux mint iso

     
  • Van

    Van - 2016-02-24

    I'm not too sure what information is relevant so I'm going to list as much as I can. The computer is a surface pro 3. A bootable usb of mint gives me the same menu. All drives can be seen using ls and the only drive I am unsure about is a drive labeled "SYSTEM" where there is an efi file that contains directories Microsoft, Boot, and grub2win

     
    • Drummer

      Drummer - 2016-02-25

      Hi Van,

      I'm pretty sure your EFI firmware is not set properly. Please try the following:

      If you can get into Windows, run C:\grub2\grub2win.exe

      On the main configuration screen, click the "Set EFI Firmware Boot Order" button then set Grub2Win as the default. Re-boot and you should be good to go.

      If you cannot boot Windows, you will need to go into your machine's firmware configuration to manually set the EFI firmware order. The steps for doing this vary from machine to machine, so you will need to consult your machine's user manual.

      Please let me know how you make out.

      Thanks,

      Dave

      On Feb 24, 2016, at 3:25 PM, Van urabut@users.sf.net wrote:

      I'm not too sure what information is relevant so I'm going to list as much as I can. The computer is a surface pro 3. A bootable usb of mint gives me the same menu. All drives can be seen using ls and the only drive I am unsure about is a drive labeled "SYSTEM" where there is an efi file that contains directories Microsoft, Boot, and grub2win

      Grub2win change default boot

      Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/grub2win/discussion/general/

      To unsubscribe from further messages, please visit https://sourceforge.net/auth/subscriptions/

       
  • Van

    Van - 2016-02-25

    It's not working. I have the EFI partition module set up and the EFI firmware boot order with grub2win as the default. The same grub shell comes up.

    For others who may come accross this problem:
    If you are running a windows machine that does not let you edit the EFI firmware order, turn on secure boot and grub will not start (windows is the only os that can be booted with this option). Restart and windows will now boot.

     
    • Drummer

      Drummer - 2016-02-25

      Hi Van,

      I need some more info to better understand the problem.

      Please boot into Windows and run C:\grub2\winsource\xxdiag.bat.

      This must be run by right-clicking and selecting "Run As Admistrator".

      The bat file will create a directory C:\grub2\diagnose which contains a great deal of diagnostic information.

      Zip up the C:\grub2\diagnose directory and send it to me as an attachment.

      Thanks,

      Dave

      On Feb 24, 2016, at 7:30 PM, Van urabut@users.sf.net wrote:

      It's not working. I have the EFI partition module set up and the EFI firmware boot order with grub2win as the default. The same grub shell comes up.

      For others who may come accross this problem:
      If you are running a windows machine that does not let you edit the EFI firmware order, turn on secure boot and grub will not start (windows is the only os that can be booted with this option). Restart and windows will now boot.

      Grub2win change default boot

      Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/grub2win/discussion/general/

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  • Van

    Van - 2016-02-25

    here it is

     
    • Drummer

      Drummer - 2016-02-25

      Hi Van,

      In looking at the diagnostics, I see that your EFI firmware is set to boot in the following order:

      1. The USB drive

      2. The Windows boot manager

      3. Grub2Win

      4. Ubuntu

      Have you tried booting without a flash drive plugged in? Some motherboard firmwares alter the boot order when an active flash drive is detected.

      Please let me know,

      Dave

      On Feb 24, 2016, at 10:14 PM, Van urabut@users.sf.net wrote:

      here it is

      Attachments:

      diagnose.zip (26.7 kB; application/x-zip-compressed)
      Grub2win change default boot

      Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/grub2win/discussion/general/

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  • Van

    Van - 2016-02-26

    Yes

     
    • Drummer

      Drummer - 2016-02-27

      Hi Van,

      Your EFI firmware boot order is incorrect as I pointed out earlier. You will need to set the firmware order manually if you want Grub2Win as your default boot manager. Please consult your motherboard or laptop manual for the procedure to set the firmware order.

      Thanks,

      Dave

      On Feb 26, 2016, at 8:54 AM, Van urabut@users.sf.net wrote:

      Yes

      Grub2win change default boot

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