Linux on disk 1 - Windows on disk 2

**wcdba132** · December 11th, 2016

Totally separate installations. Both, installed with single disk connected at install time. They both boot on its own.

I want to use grub2 to dual boot. I am not a novice but this grub2 area seems to be unclear to me for some reason.

What steps would I do to get dual boot setup (with grub2). Please be specific as possible.

**ajgreeny** · December 11th, 2016

BIOS or UEFI?

Exactly how you proceed will depend upon the answer to this.

**wcdba132** · December 11th, 2016

Linux Mint 17

**coffeecat** · December 11th, 2016

Originally Posted by wcdba132

Linux Mint 17

Thread moved to the MINT sub-forum.

If that was meant to be an answer to ajgreeny's question, it isn't. You were being asked whether you have a legacy BIOS or UEFI system.

**oldfred** · December 12th, 2016

Only if both installed in UEFI boot mode or both in BIOS boot mode.

sudo update-grub

**wcdba132** · December 13th, 2016

Bios

**ajgreeny** · December 14th, 2016

I presume that grub is therefore on the disk where Ubuntu is installed and the Windows bootloader is on the disk with Windows on it; this is the ideal way in my opinion, when using a BIOS machine with two disks.

If I am correct, boot to Ubuntu and run the command oldfred showed

Code:

sudo update-grub

and it should add Windows to the grub menu.

If you now set the Ubuntu disk as first boot priority you should get the option to boot either OS from grub; if the Windows disk is first boot priority the computer should boot direct into Windows without seeing grub and with no option to boot Ubuntu.