Add Windows boot entries after installing Ubuntu?

Question

I have Windows 7 on its own bootable hard drive, Windows 8 on its own bootable hard drive and Ubuntu on its own bootable hard drive. I'm using the BIOS to manually select on which hard drive to boot. I would like to combine them all in one boot manager/Grub. I was thinking that Ubuntu would be best. Is there a way to manually add the Windows drives to Grub?

Solution

On current Debian, and therefore most likely also *buntu, installing 'os-prober' (if not already installed) will help the grub updater auto-detect the other operating systems, and add entries for them.

So you could:

• Configure your Firmware (BIOS/UEFI) to boot from the Ubuntu drive
• apt-get install os-prober just to be sure.
• update-grub and verify seeing the other OSs in the list.
• Reboot and choose.

Comments

[Rick Diaz]

Thanks but that doesn't tell me what to enter so the Win7 and Win8 will boot. I'm new to linux so go easy.

[Hardy]

I make some update on my answer. hope this help you