設置升級網站
vi?/etc/apt/sources.list

deb http://ubuntu.cn99.com/ubuntu/ edgy main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ edgy-security main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ edgy-updates main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ edgy-proposed main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ edgy-backports main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ edgy main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ edgy-security main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ edgy-updates main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ edgy-proposed main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ edgy-backports main restricted universe multiverse deb http://ubuntu.cn99.com/ubuntu-cn/ edgy main restricted universe multiverse

（注：國內服務器，設立在杭州）
用代理上網的話，
apt加上代理：vi /etc/apt/apt.conf

把文件中的”false”改為”http://yourproxyserver:port”。

升級

apt-get update

apt-get upgrade

升級內核
apt-get install linux-686

更新完后重啟，發現grub里還有原來的i386的kernel在，自然不再需要了：

sudo vi /boot/grub/menu.lst

把里面386的normal和recovery項目都刪除咯。

完工！！
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