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I installed Ubuntu with my LiveUSB, and it said to restart in order to use your system, so I restarted. Now, I am just stuck in a completely black screen with a blinking _ underscore cursor.

I have already waited 10 minutes for something to happen, but there is no response from the computer.

I don't know what the problem could be, but maybe the message I got during installation that said APT couldn't be configured, so no additional apps will be installed was the problem?

Thanks.

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3 Answers 3

Reset to default
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Purge and reinstall GRUB, following instructions HERE

Source: I had the same problem.

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    Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference.
    – fossfreedom ♦
    Apr 27, 2012 at 15:51
  • I did that and now when I start it says 'error:no video mode activated.' What now?
    – Kevin Arutyunyan
    Apr 27, 2012 at 16:12
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As a tip , i have the same problem but by pressing the space key multiples times it does boot and show me the ubuntu startup logo....

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  • Thanks for the tip! But it now gives me the error: 'init: Failed to create pty - disabling logging for job' How to fix this?
    – Kevin Arutyunyan
    Apr 27, 2012 at 16:28
  • this is one of bugs from 12.04 ( check google ) but i do advise you to repair the grub : ubuntuforums.org/showthread.php?t=1581099
    – florent
    Apr 27, 2012 at 16:39
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this is one of bugs from 12.04 ( check google ) but i do advise you to repair the grub : ubuntuforums.org/showthread.php?t=1581099 – that should fix it!

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  • I already repaired that for the second time, still not working. And does that mean that 12.04 wont work for me now or what? Shall I try reinstalling?
    – Kevin Arutyunyan
    Apr 27, 2012 at 16:46
  • does 11.10 work for you? was it an update? more info please? do you other boot?
    – florent
    Apr 27, 2012 at 16:48
  • Yes, I already used 11.10 for three months. I deleted it and installed 12.04 fresh with a liveusb, so no update. I don't have any other os now. My PC is an acer aspire one netbook.
    – Kevin Arutyunyan
    Apr 27, 2012 at 16:51
  • I reinstalled it now and did the same things again, but I have the failed to create pty error again -.- I'm really disappointed of this new version. 11.10 had no problems.
    – Kevin Arutyunyan
    Apr 27, 2012 at 17:31
  • I tried reinstalling Ubuntu 3 times, repairing grub 5 times, every time I had the same problem. Shall I try to use a LiveCD?
    – Kevin Arutyunyan
    Apr 28, 2012 at 7:07

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