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I have installed windows a 7 and Ubuntu 13.04 already, I was trying to install backtrack but at the start of the installation, I turned the computer off because it told me it was going to boot automatically or something like this, then when I tried to open my computer again, I got this

error: unknown file system.
grub rescue>
Seth
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karim
  • 1

1 Answers1

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Place ubuntu on a USB Live, boot from it and do the following:

sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt-get update

Then

sudo apt-get install -y boot-repair && (boot-repair &)

Do the recommended repair and then reboot.

Simion Agavriloaei
  • 398