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How does Grub load before Win8?

asked 2012-10-15 18:52:28 -0500

PolyShell gravatar image

I recently set up a partition that houses F17. I currently have a dual boot of Win8 and F17.

Whenever I boot up my box, GRUB takes preference over Win and asks what partition I would like to boot into.

How is this? Why doesn't the Win8 boot option take preference over GRUB? Is it because I installed F17 more recently than Win8?

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answered 2012-10-15 19:09:18 -0500

sideburns gravatar image

GRUB is more than just a boot loader; it also allows you to pick which OS you boot. As an example, Fedora keeps your current kernel and the most recent two older kernels you've had so that if there's a problem with the new one you still have two known-good kernels to boot from. And, of course, it also lets you boot into Windows, or any other non-Fedora OS you happen to have.

One of the reasons you get GRUB is, as you suggest, because you installed Fedora after Windows. Until recently, this was recommended because the Windows boot loader was unable to recognize or load any non-Microsoft operating system. There are ways to get back the Windows boot loader, but before you do, be sure to find out if it will boot Linux properly and, if not, what you need to do to work around its limitations.

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That's right.

Charles Wang gravatar imageCharles Wang ( 2013-11-29 02:23:38 -0500 )edit

answered 2012-10-16 07:46:10 -0500

Iki gravatar image

Is it because I installed F17 more recently than Win8?

Yes. The boot loader, either Windows' or GRUB, goes into the Master Boot Record which is in the beginning of the disk, separate from the OS.

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Asked: 2012-10-15 18:52:28 -0500

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Last updated: Oct 16 '12