I was using ubuntu 12.04 LTS version and everything was working fine. Yesterday I decided to update using the option in the update manager to ubuntu 14. Everything went smoothly in the installation BUT after the restart when I tried to boot ubuntu I was stuck in a grey/white screen (no login possible)... Please tell me that there is a solution in this that does not require complete format of the operating system! I am not proficient in using ubuntu so please if you make any suggestion like check graphic card do tell me how to do it or redirect me to an adequate tutorial...
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1Try reinstalling ubuntu-desktop like this sudo apt-get install ubuntu-desktop – Zuko Aug 17 '14 at 09:28
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I do not have access to terminal... And if I press 'c' in grub it does not recognise the sudo command... – Saraki Aug 17 '14 at 09:51
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EDIT: Reinstall Ubuntu or use LiveDVD, because tty doesn't work
Try Ctrl + Alt + F6 to enter tty6. (Also possible with 1-5)
There you can try to reinstall ubuntu-desktop or choose another window manager
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Those are very good links! But I have one problem...I cannot open the terminal! None of the combinations to open it work... – Saraki Aug 17 '14 at 11:14
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never had this... Probably easiest solution: reinstalling the system; You can save your data probably by booting with the live Disc and saving them to an external drive for example – Ristridin Aug 17 '14 at 12:29
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if you definitely don't want to reinstall, maybe some additional information would help: You "tried to login" so you see an login screen? does Crtl + Alt +F6 anything before trying to login? – Ristridin Aug 17 '14 at 12:35
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I do not see a login screen instead of it I see a white/grey screen... I tried Crtl+Alt+F6 in there and before selecting ubuntu in grub... – Saraki Aug 17 '14 at 14:26
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have you tried selecting sth else to boot in grub? e.g. recovery mode for ubuntu – Ristridin Aug 17 '14 at 14:45
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I have tried every option in the recovery mode...nothing works ...I guess something must have reaaaaally went wrong in the upgrade... – Saraki Aug 17 '14 at 15:02
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again I'd recommend a fresh install of ubuntu; is there a specific reason why you don't want to do this? Do you run a dual boot with win or sth? Does the other OS work? – Ristridin Aug 17 '14 at 15:06
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I am running dual boot with windows 7...I did not want to format because I am running short in time for a project and it would take to much time to reinstall all the additional programs... But it seems that it is unavoidable! – Saraki Aug 17 '14 at 15:15
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Does you win work? If it does you can just reinstall ubuntu, therefore try booting with liveDisc and this; explanation here – Ristridin Aug 17 '14 at 15:25
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If win doesn't work the error is maybe in grub; you can try this; if you understand German here in nicer form – Ristridin Aug 17 '14 at 15:30
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If win does work another option might be trying to install another graphics driver. You can try sth similar to this, depending on your card – Ristridin Aug 17 '14 at 15:41
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Windows work thank you for your help you redirected me to some pretty good tutorials. But I have decided to do a format and get it over with because nothing that I have been trying did any good... – Saraki Aug 17 '14 at 17:44
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