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I have installed Ubuntu 13.04 on my Windows 8 Pro of HP dv6 7012tx. When I am opening my laptop, its showing these error before showing Windows 8 logo.

error : unknown filesystem.
grub rescue>

Please help me to solve my problem as HP customer care told me to format my entire laptop what I don't wanna do. Help me to resolve or uninstalled Ubuntu via commandline.

Thanks.

BuZZ-dEE
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rohit raj
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3 Answers3

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Run a live Ubuntu CD or USB, then open Terminal , you need to install boot-repair, it just simple tool to install GRUB boot , and scanning for other OS exiting on your HDD,

  1. Connect to Internet.
  2. Open Terminal
  3. then type sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt-get update
  4. then sudo apt-get install -y boot-repair && (boot-repair &)
  5. Launch Boot Repair from Terminal : boot-repair
  6. Press Recommended Repair.

You can find fore info Here.

Alvar
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Yassine
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The problem here is incomplete installation of ubuntu which has caused an error while booting it as the default operating system. If you are using a bootable pen drive or a disc, next time boot from one of these devices from the BIOS and complete your installation.

Srikanth Suresh
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disable secure boot then try you will see grub menu if its still not work then run via live CD/pendrive and install boot repair and run that in recommended setting

you may see https://help.ubuntu.com/community/UEFI

Alok
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