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Thread: Dual boot- no grub

  1. #1
    Join Date
    Dec 2016

    Dual boot- no grub

    On a dual boot Ubuntu 18.04- Windows 10 setup.

    By default I boot into Ubuntu desktop

    The problem is that for some reason I have no grub menu on boot, just a black screen!

    This is my existing grub file. Is there something I should change in rder to get my grub menu back? As an alternative how do I automatically load into BIOS on boot?

    # If you change this file, run 'update-grub' afterwards to update
    # /boot/grub/grub.cfg.
    # For full documentation of the options in this file, see:
    # info -f grub -n 'Simple configuration'

    GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`

    # Uncomment to enable BadRAM filtering, modify to suit your needs
    # This works with Linux (no patch required) and with any kernel that obtains
    # the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
    #GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xe fefefef"

    # Uncomment to disable graphical terminal (grub-pc only)

    # The resolution used on graphical terminal
    # note that you can use only modes which your graphic card supports via VBE
    # you can see them in real GRUB with the command `vbeinfo'

    # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux

    # Uncomment to disable generation of recovery mode menu entries

    # Uncomment to get a beep at grub start
    #GRUB_INIT_TUNE="480 440 1"

  2. #2
    Join Date
    Jun 2009
    SW Forida

    Re: Dual boot- no grub

    What brand/model system?
    What video card/chip?

    May be best to see details, use ppa version with your live installer or any working install, not older Boot-Repair ISO:
    Please copy & paste link to the Boot-info summary report ( do not post report), the auto fix sometimes can create more issues.

    Most systems use f2 or del key to get into UEFI/BIOS. But if UEFI and you have fast boot on, then you may not have time to press any key.
    Grub does have an entry, if UEFI: 'System setup'
    For more info on UEFI boot install & repair - Regularly Updated :
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

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