I am newbie to Ubuntu, I got into it 2 weeks ago and I reinstalled it like 10+ times already.
In most cases Ubuntu graphic interface wont show up, just command line.
Few times I had "low graphic settings" error.
All of this happens mostly when I decide to remove useless repository, or install-remove some programs, or remove some pre-installed programs like Rhytmbox or Solitaire, which definitely shouldn't give any problems, but than baah - and my Ubunt wont load.
I think that good way to keep system alive is never to uninstall anything. But sometimes when I install some program from some repository, and I dont need it - I want to remove repository aswell and again my Ubuntu gets destroyed.
How can I keep my system clean yet working?
What should I do?
Should I maybe use some backup-program also? How can I organize my files/system so that I dont have to reinstall it all every time I mess something?
P.S.: For example right now I installed LAMP using taskel. Something went wrong, mySQL didn't get installed, so I want to remove it all and retry. how do I do it properly?
Or, say, JDE. I installed Oracle 7 JDE since I needed it for PhpStorm, I failed to install it since some repository didnt exist. Next time failed version installed. After finally removing old stuff and installing Oracle 7 it worked, than I rebooted and bah - again my system wont load. What am I doing wrong? Am I lost for this world? :)