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I installed Ubuntu 11.10 on my machine alongside Vista, and upgraded to 12.4. I decided I liked 11.10 better, so I tried to install that again as my only OS, except I increased the size of the swap file partition to 2 gigs. It boots up fine off the CD, but when I install, it gives me a non-specific error, and returns me to the desktop. When attempting to boot off the hard drive, I get a black screen with a blinking underscore that starts in the corner, drops a couple spaces, and stays there. I managed to install 9.04, and am currently using that. The computer is a little outdated, but was fired up for the very first time last week, so the hard drive is in new condition and the CD rom drive is fine too. Running a 3GHzX2 processor. I ran a memory test, which came back fine, and being new to the linux environment, I've been scratching my head for the last couple days. How can I fix this?

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Let me get this straight- you were dual-booting 11.10 with Vista, upgraded to 12.04 and now want 11.10 as your only OS. Seems booting from CD & doing fresh install of 11.10 will fix the issue. – daslinkard Sep 21 '12 at 2:07
Yes, that's pretty much it. I tried a standard "delete everything and just use 11.10" option, and got as far as the load bar telling me "ready when you are". I hit continue after naming the computer and setting up my password and am graced with an error message that tell me the install didn't work, and that it would start a desktop session for me to investigate the problem or try installing again. It does this every time. – Robert Moody Sep 21 '12 at 5:43
The exact wording of the error message I received was "Installation failed The installer encountered an unrecoverable error. A desktop session will now be run so that you may investigate the problem or try installing again." – Robert Moody Sep 21 '12 at 6:32

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