My laptop has ubuntu 10.04 and it fails to boot often. It will show me the boot loader menu and then it looks like it is loading, showing the ubuntu logo and the loading bar. Then the screen becomes black and there is only a fixed white dash in the upper corner and the led that signals that the computing is reading from the hard disk will shut down.
This thing happens randomly. At the beginning it was happening just once in a while, but now it is happening most of the time. I have to reboot several time before being able to successfully boot. I fear my laptop will not boot anymore. What should I do?