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I have yet another GRUB question

post #1 of 15
Thread Starter 
So Im redoing my computer today since I need to update the firmware on one of my F3s. Because I am, im going to go back and install linux again. Here is the plane as i have 3 HDs now:

F3 1 - Windows
F3 2 - Data Backup
WD 640 - Linux

Now, what I cant remember since i normally only run 1 drive is if you have the 2 OS's on seperate drives, do you need to play with GRUB to get it to grab the other OS, or will it see it and set that up on its own?
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post #2 of 15
It depends on what order you install the operating systems, and which distro you use
"Playing with GRUB" isn't tricky (well, it's different with Ubuntu, because of GRUB 2)
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post #3 of 15
Quote:
Originally Posted by chemicalfan View Post
It depends on what order you install the operating systems, and which distro you use
"Playing with GRUB" isn't tricky (well, it's different with Ubuntu, because of GRUB 2)
GRUB2 should become a standard soon, but it's really very similar. As far as the grub.cfg (menu.lst) goes it's very close to the same structure, they changed minor things and added better support.

Since you are using grub2 and Ubuntu it should all work automatically. The only OS that I haven't seen it grab right is OSX, but that's because you have to do emulation and crap on a hackintosh as opposed to a standard OSX install. In that case grub2 grabs it correctly. It's vary rare that grub2 won't probe and detect installations from other hard drives.
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post #4 of 15
Thread Starter 
I guess I should have mentioned, I am going to be using Arch. What I have heard in the past is Windows first and Linux second so that you dont have to go back and redo GRUB.

Will using Arch change anything compared to Ubuntu?
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post #5 of 15
Yes, its much more centered on what you want installed.
post #6 of 15
Thread Starter 
best location ive seen yet

But what do you mean by centered on what i want installed? I understand that setting up Arch is that way, but when it comes to GRUB do i need to manually set it up with windows or will the arch\\grub setup see it and pull that info on its own?
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post #7 of 15
Quote:
Originally Posted by NameUnknown View Post
best location ive seen yet

But what do you mean by centered on what i want installed? I understand that setting up Arch is that way, but when it comes to GRUB do i need to manually set it up with windows or will the arch\\grub setup see it and pull that info on its own?
if it doesnt automatically set it up... you can always boot from a live disc that you know would automatically set it up and install grub from there like...

grub-install /dev/sda
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post #8 of 15
Well there is a default Windows boot location commented out in the config. You need take to comments out (delete the pound signs at the begining of each line) and point the root to where ever you have your windows partition installed. So if I have my Windows partition installed on my 3rd HDD on partition 2 (I think) you would use:

root (2,1)

*I haven't used Arch since last year so please forgive me if the info is wrong. Better burn a live disk just in case
post #9 of 15
Thread Starter 
Time to get to work Gotta be back up and running in 3.5 hours for a raid
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post #10 of 15
arch doesn't do updating like debian based systems, it doesn't make an update-grub program. You have to manually run:

grub-mkconfig -o /boot/grub/grub.cfg (or menu.lst, but I believe they use grub2)

That will, or should, detect other operating systems automatically. I'm not sure though, you might have to comment something out or change something.

Hmmm, for some reason mine isn't. =X I wonder why that is.
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