今天又手欠，想把skype升级到4.0.
结果升级前需要卸载原先的skype2.2，没想到卸了之后不仅4.0没有安装成功，2.2也再装不上了，我哭。。。
谁教我够贱，只好股沟来股沟去，总算解决了，呼呼。
http://www.mindwerks.net/2012/06/skype-4-0-on-ubuntu-precise-12-04-64-bit-2/
- Remove old skype packages if they exist:
sudo apt-get purge skype skype-bin - Download latest Skype (4.0) (fake) 64-bit package for Ubuntu 10.04+. It might say skype 2.2 beta on the screen, they have yet to update the page. The download link goes to the 4.0 version.
- Install the necessary support libraries:
sudo apt-get install ia32-libs lib32stdc++6 lib32asound2 - Install the skype binary package itself:
sudo dpkg -i skype-ubuntu_4.0.0.7-1_amd64.deb
