I have a Linux Mint 17.1 Partition at /dev/sda1 and another Mint 17.1 Partition at /dev/sda5. How do I set the MBR to boot into /dev/sda1 instead of the GRUB menu? I know how to use GParted to delete the /dev/sda5 partition but not how to set the MBR.

  • the MBR cannot boot into sda5 as it does not know about extended partitions. You need grub or another boot loader for that. Just make sure /dev/sda1 has the boot flag and sda1 should boot
    – VaTo
    Jun 5, 2015 at 21:38
  • I have /dev/sda1 with a boot flag, it still boots into GRUB. Jun 5, 2015 at 21:45

1 Answer 1


Grub is a piece of software that is installed in the MBR.

Delete sda5 and run grub-update or change grub config manually to boot from sda1, Maybe this howto can help you.


If grub is installed on sda u can change the grub config to boot from sda1. If not try to install grub on sda.

$sudo grub-install /dev/sda
$sudo update-grub

If grub-install gives problems, you can install manually from the Grub shell with:

  1. grub
  2. root (hd0,0)
  3. setup (hd0)
  4. quit

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.