Have you tried:

fdisk /mbr

to remake the master boot record?

On 12/7/2015 7:33 AM, JAYDEN CHARBONNEAU wrote:
Is there a way to completely FORMAT and REMOVE grub?Basically wiping the drive clean.I googled this,and could not find any helpful results.

On Sun, Dec 6, 2015 at 2:46 PM, Eric Auer <[email protected] <mailto:[email protected]>> wrote:


    Hi Georg,

    > I gave up on Grub plus DOS after I locked myself out from my PC.

    The usual way to fix this is to boot e.g. Linux from CD to edit
    the GRUB config and/or to reinstall the GRUB binary. There also
    is a limited interactive feature in GRUB, but it usually is not
    convenient at all to "manually" boot by typing 10 GRUB commands.

    > To get DOS to work with Grub you have to get it to mask any non-
    > FAT partitions so DOS feels it is on the first partition.

    For FreeDOS, this is not necessary. However, DOS looks at the boot
    sector of the boot partition to find out where that is. If your
    DOS partition is not a primary partition (one of the main four),
    then that is likely to fail. This is a limitation of our FreeDOS
    boot sector, so tuning SYS could potentially provide workarounds.
    Other DOS versions have similar issues.

    Another problem is that DOS expects config files to be on the
    partition which DOS calls C: (when booting from harddisk), so
    if you have other FAT partitions, some confusion can develop
    regarding which FAT-based OS should read config files where.

    This is why FreeDOS prefers fdconfig.sys instead of config.sys
    when it finds both on the same drive: It helps with dual-boot.

    > Grub will install itself in the first disk sectors and it will
    stay there
    > even if you delete a Linux partition later...

    You can also install it to the boot sector of your Linux partition,
    but various config tools may assume that you have indeed installed
    GRUB "globally" to your MBR and beginning of the whole harddisk, so
    it is recommended to do like the config tools assume. Unless there
    is another boot menu in the MBR, then you better put GRUB elsewhere.

    Regards, Eric



    
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