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I decided to install Ubuntu 12.04 alongside Win 7, which is a primary system. I downloaded, checksumed, and burned iso to DVD. Then I installed Ubuntu using general instruction, the only thing I changed was allowing manager to partition disk space automatically (though I shifted to 200 Gb out of 300 Gb, not sure how much I need).

After completion I rebooted system, and with DVD off machine it launched Win 7 without prompting me. Turning on DVD, it again asked me to install Ubuntu. The problem is that it took off those 200 Gbs out of hard drive on Win 7.

So first, what the problem might be? Did it happen because I partitioned wrongly? I'm actually not sure, when I asked to allocate space, is it size of hard drive that can be used to install programs, or it's just to install Ubuntu onto that?

Now when I decided to reinstall Ubuntu using other instructions, how can I find out what partition was allocated on Ubuntu on Win 7, in order to manually allocate space next time?

My final goal is to allocate enough space for all programs on Ubuntu (as I understood I'm not able to use programs from Win 7). If for instance I want to have 300 Gbs, should I pass that much space during installation?

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Your grub menu might be set to timeout at 0 seconds. As soon as your bios splash goes away, press the shift keys a bunch of times and the grub menu should pop up –  Scott Goodgame Jul 2 '13 at 17:59
    
How can I configure it on Ubuntu? –  Bran Algue Jul 2 '13 at 18:37
    
Please run the Boot Info Script from a Linux live CD/emergency disc. This will produce a file called RESULTS.txt. Post a link to that file in your question. Without this information, any answer will have to guess about what's wrong. (Some people might suggest you run Boot Repair, but that's very unreliable, in my experience.) –  Rod Smith Jul 3 '13 at 1:06
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1 Answer 1

Dual boot installs are nothing but trouble. You may want to install VirtualBox on win-doze http://download.virtualbox.org/virtualbox/4.2.14/VirtualBox-4.2.14-86644-Win.exe then install Ubuntu inside VirtualBox. This will eliminate your dual-boot problem, and allow you to run both win-doze and Ubuntu at the same time! (Of coarse, my preference is to boot to Ubuntu as my main operating system, and seldom run win-doze from inside VirtualBox).

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I have VB on Win 7. This is a reason I decided to install full version. –  Bran Algue Jul 2 '13 at 18:37
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