i had being using ubuntu 11.10 in my HP core2duo vista laptop since the past six months. yesterday i upgraded to 12.04 and during upgrade got an error message of "partial upgrade.''Today morning I booted into ubuntu and did a software update. 21 packages were updated but after reboot am permanently stuck at the UBUNTU welcome screen with few dots flashing. Pls help as am still new to ubuntu.
closed as off topic by fossfreedom♦ May 16 '12 at 19:41
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Pls run your system in "Recovery mode" and fix any broken issues and reboot and see whether it works or not.I think you have problem with the video driver and it might not installed properly as you said u had error message during upgrade.Do a back up with live media before going further so u r safe from losing data.