hi guies,,
i dont know what happened to my ubuntu 9.10 os
when i use start my laptop it loads ubuntu usually..

but today when i presed the power button it started,ubuntu logo appears.
till here its ok.but after then a complete black screen appaears .
having written ""ubuntu9.10 omi ttyl""
it asks my id n password i had given that but it still remains the same
that screen remains in cui..
it seems my computer has turned into terminal mode

how can i put it back to graphical mode..

type startx then GUI will be started

try if it gives error then probably desktop is not installed. use this command

thnx foe ur response...i iwll try..
lets see what hapens..

both of them didnt worked..
when i gave startx cammand..a white window appeared ,,actually this window was of terminal ..terminal window..no desktop

then i switched off ma lappy directly.

n gave ur second command..
it start installing some packages and ask my permission in between i gave yes..

after installing packeges it remain as it is ..it remained in CUI..

actually at present my screen is similar to dos screen...

now how can i get backk to desktop mode

Try:

or
Hopefully this should start the GNOME display manager (assuming you're using regular Ubuntu, not Kubuntu or Xubuntu), and put you in a graphical login screen.

thnx for ur reponse mister.
but it didnt helped me.
on typing gdm it says it is not installed
and on typing the other code it said there is no such direcotry or file

If it was working correctly and then suddenly started this behavior, then most of the suggestions so far are probably not relevant.

Did you change **anything** before the problem appeared?

The first thing to do is look at /var/log/Xorg.0.log---See what kind of error messages appear towards the end.

what i was doing b4 the prob came..i was shutting down ubuntu after my work is over..but it wasnt shutting down so i clicked over the shutdown option twice or thrice ,,but it wasnt working .then i directly switched off my lappy py pressing n holdig the power button.

as i restarted it .there was the problem..

usually the ubuntu9.10 ttyl logon screen use to appear b4 whenever i restart but after very short duration it goes off n ubuntu desktop use to appears..

but now it remain in that CUI ttyl sreen..

i will check what u suggested me..thnx 4 that

So......probably some configuration file has been glitched...the log output should give us a clue.

Note: please do not use the texting shorthand here---spell out the words:

before
you
thanks
for
and

when i typed that it says there is no such file or directolry..

one thing more i would like to add is , last night i was trying to install GYACHI chat client on ubuntu and i had to download and uninstall some packages for that may be thats causing the problem

When you typed what??

To read the log file:
Perhaps----the log file should tell us if there is a file missing.

i did that and there is lot of information printed ,

i dont know where to look at , the information is so huge that i cant post it here..

i will try to find error messages in the layout and will paste it here but it will take time

That log file uses tags for different kinds of messages---the code is at the beginning of the file.

Try--for example: