Help! Ubuntu won't boot!

[TreeFinger]

could you mark the thread as solved and tell us what you did that made it work again?

[Diabolis]

He changed his runlevel by typing the command that you gave him or by booting into normal mode and then he executed the commands that I gave him.

to summarize:

telinit 2
sudo apt-get update
sudo apt-get --reinstall install xserver-xorg
sudo dpkg-reconfigure xserver-xorg

[mahela007]

hello guys........
I have a similar problem where ubuntu wont boot.
i tried booting it in safe mode. It proceed up to a certain point and then is gives a repeating bunch of errors about "sda6". what does this mean?

[Diabolis]

errors that say "sda" are related to a partition problem. Maybe a drive is not mounting correctly.

Please be more specific with your problem so we can help you.