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Thread: BIOS boot drive selection + GRUB

  1. #1
    Join Date
    Feb 2012

    BIOS boot drive selection + GRUB

    I have multiple HDDs and one contains Ubuntu, other OSs and GRUB v2(?).

    Anyway, I usually select through the BIOS boot menu which HDD I want to boot to and I noticed a problem when booting to my drive with GRUB on it. The issue is that after I boot through GRUB to any OS on that drive, and I reboot to a different drive (in particular, one with Windows 7), the system reboots by itself after about 10 or 15 seconds.

    To prevent this from happening, I have to disable the drives (through the BIOS) I do not want impacted by booting through the GRUB drive before booting to it. I would like to find out why this happens and, possibly, how to fix it.

    Thank you.

  2. #2
    Join Date
    Oct 2009
    Elgin, IL USA
    Ubuntu 16.10 Yakkety Yak

    Re: BIOS boot drive selection + GRUB

    Why not just boot everything from grub on whichever drive it is on. I boot Win7 or Maverick on sda or 11.10 on sdb from 11.10's grub on sdb.

    Although, in one case for a Win7 service pack update it wanted to be the master of its boot drive (standard dos/win mbr) in order for the update to succeed. So Maverick's grub is on its own partition (sda4 instead of sda mbr). Grub boots Win7 fine, but if I want to boot Win7 without going through grub, I just hit F12 during BIOS splash screen (Dell) and select my 1st drive.
    Last edited by efflandt; February 10th, 2012 at 12:47 AM.
    i5 650 3.2 GHz upgraded to i7 870, 16 GB 1333 RAM, nvidia GTX 1060, 32" 1080p & assorted older computers


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