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I have decided to retry installing Ubuntu when 14.04 came out... and I doomed my computer again. I have Windows 7 installed, and I followed this guide to dual boot. After installation, I see the GRUB rescue screen, telling me there is no such device (followed by a rather long set of letters an numbers).

I am unable to boot into either Windows or Ubuntu. Last time I had this error, I just ran boot repair and it fixed it, but this time, even that won't work. (To install boot repair, I had to change the repository distribution to 'saucy', otherwise it doesn't find the package.)

I tried boot repair twice:

1: http://paste.ubuntu.com/7229503/

2: http://paste.ubuntu.com/7271773/

To at least save Windows, what are my options?

Edit: This is the BootInfo summary created by the boot repair tool: http://paste.ubuntu.com/7272011/

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  • possible duplicate of Boot error > no such device: grub rescue. Also worth reading are the answers to: How can I repair grub? (How to get Ubuntu back after installing Windows?).
    – karel
    Apr 18, 2014 at 1:10
  • I have tried both solutions (the accepted answers), but it still doesn't work. Can I somehow just uninstall GRUB and revert to using a single OS?
    – Luka Kotar
    Apr 18, 2014 at 1:53
  • I will try this solution to get Windows back up and running. One question before I do that: should I remove the Linux partitions? (EXT5 and Linux Swap) I'm just asking to be safe.
    – Luka Kotar
    Apr 18, 2014 at 2:03
  • Before you change the ext4 and swap partitions, it would be a good idea to look at how to uninstall Grub and revert to using a single OS from the Ubuntu point of view: How to remove Ubuntu and put Windows back on?.
    – karel
    Apr 18, 2014 at 2:17
  • Again, thanks for replying. I am looking at the OS-Uninstaller from the second-most voted answer, and I am unsure what settings to pick. In the "MBR Options" tab, I have a "Restore the MBR of: " field, and I am offered many choices. ("sdb (generic mbr)", "sdb (generic mbr_c)" (same options for the sda), and so on). I am in doubt as to which one to select. Edit: I am pretty sure the Windows bootloader is located on sda
    – Luka Kotar
    Apr 18, 2014 at 2:41

1 Answer 1

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Luke, I used this to help me set up a dual boot with the previous ver of Ubuntu and Win 7: http://www.linuxbsdos.com/2014/02/01/dual-boot-windows-8-or-windows-7-and-ubuntu-13-10-with-ubuntu-on-a-btrfs-filesystem/

I used Ext4 rather than btrfs but it explains the concepts more clearly. I found I was able to to boot into Win7 but not Ubuntu and EasyBCD fixed my boot config. This may be the equivalent in Linux: http://www.supergrubdisk.org/

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