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Old 03-25-2013, 05:47 PM   #1
ziphem
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Registered: Feb 2004
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Fedora 18 & Windowa 8 dual install - probs booting Windows


I'm at a bit of a loss about what to do. I installed Fedora 18 after a Win 8 installation to get dual-boot. Whenever I try to boot Windows from Grub, I get:
Error: no such device: ####
Error: can't find command 'drive map'.
Error: invalid EFU file path.

I'm hoping this is a straightforward fix, but I'm quite unsure. I've seen some proposed solutions, and it seemed good but I couldn't locate om my computer the
.efi that the guide made central to the solution.

Thanks a ton for any help!!

Last edited by ziphem; 03-25-2013 at 06:02 PM.
 
Old 03-26-2013, 04:33 AM   #2
Air-Global
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I do not know the direct solution. But in my Fedora efi bios installation the .efi folder is located in /boot/.efi

But as far as i know files here get renewed at each boot to 'defaults'. so a way of setting those defaults should be used. But it is worth a try.
 
Old 03-26-2013, 01:52 PM   #3
John VV
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can you go into some detail on just how you installed fedora 18 on the windows8 box

as in
did you replace the windows MBR ( and the windows "recovery" partition ) with grub?

or

Did you put grub on the first linux partition

the hidden ( to windows) OEM's "recovery partition" often makes life difficult

in the grub menu.lis IS the windows8 section really pointing to windows 8 or is it pointing to the win8 "recovery" partition .


Also can you post the output of this from fedora
Code:
su -
fdisk -l
 
Old 03-27-2013, 01:19 AM   #4
ziphem
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Hi,

Thanks for the replies! I've always put grub on the partition, but I was told that this approach was no longer a good idea; I'm using UEFI in this new computer.

I've read that there are issues with os-prober chainloading of another EFI bootloader. This would cause a faulty menu entry, preventing me from booting into Windows 8.

I've seen a fix to disable os-prober, but I thought in the meantime that the simpler approach would be to add a menu entry 'exit'. This would bring me to the Windows bootloader, and from there, I can select Windows. I guess this is a few steps I was hoping to condense, but considering that I only use Windows once in a blue moon, it's not the biggest deal...plus I haven't ever looked at anything UEFI, so I'm a little daunted by it, if that makes any sense...

Thanks a ton for having taken the interest and time to reply to my question!
 
Old 03-27-2013, 11:13 AM   #5
yancek
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Quote:
Error: can't find command 'drive map'.
That would indicate windows is not on the first drive. Post the partition information requested above as well as the windows entry in your grub.cfg file. You are using grub2?
 
  


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