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After recent system update (I think I saw something kernelish but don't really remember) my Ubuntu becomes unbootable. When I select "Ubuntu" from the boot menu, I'm greeted by a GRUB console and I don't know what to do (typing help shows some helpful commands for gods, unfortunately I'm a mere mortal).

I'm doing this on Windows XP now. How do I go back to the future?

Edit: The Ubuntu was installed using WUBI

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A very nice description of the problem indeed, I like your style :) But I have 2 questions: are you sure it is a Grub console (looking something like grub >)? If so, can you post the output of boot_info_script from a LiveCD? sourceforge.net/projects/bootinfoscript –  arrange Feb 28 '11 at 7:15
    
How did you install Ubuntu? Was it booting from the live CD and installing to a real partition or using WUBI and installing from Windows ? –  João Pinto Feb 28 '11 at 16:53
    
WUBI, installing on NTFS –  Ron Mar 2 '11 at 5:10
    
@arrange: the prompt is sh:grub>, boot_info_script: command not found –  Ron Mar 3 '11 at 3:55

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up vote 2 down vote accepted

I think you will need to boot into a live CD and Recover GRUB visit this Community Documentation link - the steps are not that hard to follow you just need to be sure of the Ubuntu install partition and use the 9.10 install Cd you have.

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Unfortunately I use WUBI –  Ron Mar 2 '11 at 5:33
    
Simply choose Windows at boot and then you can reinstall from within Windows then. –  Mark Rooney Mar 2 '11 at 8:40
    
okay I'll need to rescue my home first. Thanks. –  Ron Mar 3 '11 at 4:13
    
If your happy using Ubuntu I suggest you format the partition and dual boot - WUBI is really really meant for those that just want to run Ubuntu inside a Windows environment and does sometimes have issues with updates that can break the installation, see wiki.ubuntu.com/WubiGuide for more info. –  Mark Rooney Mar 3 '11 at 6:36

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