前几天把自己的ubuntu从7.10升级到8.04.其实都挺稳定的，不过KDE4还是不怎么好用，后来用gnome的human的主题，没想到也很帅的。
升级主要是更新一下源：
deb http://apt.schmidtke-hb.de gutsy main deb-src http://apt.schmidtke-hb.de gutsy main deb http://archive.ubuntu.com/ubuntu/ hardy main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu/ hardy-security main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu/ hardy-updates main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu/ hardy-proposed main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu/ hardy-backports main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ hardy main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ hardy-security main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ hardy-updates main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ hardy-proposed main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ hardy-backports main restricted universe multiverse
然后sudo apt-get update
sudo apt-get dist-upgrade
接下来就等着了。
不过升级后出现显卡不能用的情况，我是nvdia的
后来自己装了 nvidia-glx-new 和 nvidia-kernel-common
然后使用nvidia-xconfig的命令就可以了。
如果还有问题的话，可以查看配置文件sudo cat /etc/X11/xorg.conf
不过呢tomcat5.5升级后不能用拉。
