yum ,....it 's too easy to use and stable command that install update , software easily.....but for ubuntu, it's not working properly...so..the other way to get update or software u better use apt-get [option] command or..apt-get [option] pakage name.... i think this will help u out....

ေက်းဇူးဗ်ိဳ႕
အဆင္ေၿပသြားၿပီ။

ဒီ Command ကိုရွာေနတာၾကာၿပီ။

ကယ္ပါဗ်ို.. apt-get နဲ. မရဘူးျဖစ္ေနတယ္.. ubuntu 9.10 မွာ....

ဘယ္လုိမရတာလဲဗ်။
Linux ဆရာၾကီးကလည္း။ တားတုိ႔ကိုၿပန္ေမးေနတယ္။