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I don't have a bootloader. there's just a GRUB terminal-like interface and apparently, linux terminal commands (e.g. exit, shutdown, poweroff) don't work on it so I don't know what to do with it.

I have windows 8 and ubuntu 12.04 (both 64bit) installed on the partitions of my laptop.

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1 Answer 1

Boot using a live usb/cd of ubuntu. Use boot-repair to fix the problem.

After booting with live usb/cd ,Run following command in terminal,

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

Use Recomended Repair

More information can be found here- > https://help.ubuntu.com/community/Boot-Repair

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Traceback (most recent call last): File "/usr/bin/add-apt-repository", line 125, in <module> ppa_info = get_ppa_info_from_lp(user, ppa_name) File "/usr/lib/python2.7/dist-packages/softwareproperties/ppa.py", line 80, in get_ppa_info_from_lp curl.perform() pycurl.error: (7, "couldn't connect to host") –  ajmp Jul 7 '12 at 8:42
    
Please connect to internet first. –  Web-E Jul 7 '12 at 11:34
    
yes, actually I connected to the internet. I also changed necessary settings for proxy but it didn't work. so, I downloaded the iso file and burned it in CD but the boot repair disk tool simply closes after doing its thing. –  ajmp Jul 7 '12 at 15:27
    
Please boot on the Boot-Repair-Disk, open a terminal, type sudo boot-repair -d, press Enter, and indicate the output. –  LovinBuntu Jul 10 '12 at 17:28

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