Ubuntu安裝virtualbox

安裝ubuntu 12.04 (Precise Pangolin)

1. 增加下面文字至/etc/apt/sources.lst
deb http://download.virtualbox.org/virtualbox/debian precise contrib

2. 增加key
wget -q https://www.virtualbox.org/download/oracle_vbox.asc -O- | sudo apt-key add -

3. 安裝
sudo apt-get update
sudo apt-get install virtualbox-4.3

upgrade Xubuntu後出現/sbin/ldconfig.real: /usr/lib/libstdc++.so.6 is not a symbolic link錯誤

1. #sudo rm -r /usr/lib/libstdc++.so.6

2. #sudo apt-get install --force-reinstall true libstdc++6

Xubuntu uGet出現failed to connect to aria2錯誤

不要由Ubuntu Software Centre(USC)下載
使用PPA
sudo add-apt-repository ppa:plushuang-tw/uget-stable
sudo apt-get update
sudo apt-get install uget

sudo add-apt-repository ppa:t-tujikawa/ppa
sudo apt-get update
sudo apt-get install aria2