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I installed Ubuntu and after finishing the installation it's stuck at:

Please remove installation media and close tray and press enter.

I tried installing Ubuntu twice and the problem persists.

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Have you tried… removing the installation media and pressing Enter? – slhck Jan 7 '13 at 8:31
What happens when you remove the media and hit enter? Anything? If not, hold you computer's power button. As it restarts, just pop out the disc and it should boot up. (The install already happened as did the boot loader). – nerdwaller Jan 7 '13 at 8:32
I tried removing the media, i even tried by pressing the "off" button and restarting manually. It doesn't work. After the boot up a set of commands comes up and stucks at the end. I even tried entering some commands but all in vain. My laptop model is Lenovo Ideapad s110. – Anup Jan 7 '13 at 12:16

Four possibilities:

  • There's a problem on your PC and its partitions. Perhaps you can wipe the area you want to install Ubuntu on and then try again.

  • There's a problem with your installation medium. Unlikely, though, because such an issue would have shown up earlier, I would think. You could try making a new one.

  • Your computer is unable to know when the tray is closed. Then you have a hardware problem that will probably require replacement. But it sounds unlikely.

  • There's not really a problem, and Linux was installed successfully. Just that the Enter thing doesn't work. If you reboot the computer at that moment, can you use Linux? Because this message usually means the installation was successful.

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I experienced the same thing. What I did was, pressing the restart button (for 20 seconds)until everything went off, then when my PC restarted, there you go! The fresh uBuntu. I am uBuntu newbie. :)

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This is identical to the fourth option of the existing answer. – Chenmunka Sep 10 '15 at 10:55

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