骨头源是bones7456架设的一个Ubuntu源，这个源的特点就是能保证全和新，2小时更新一次，Ubuntu Linux 9.10 增加骨头源：
1、先备份默认更新源 sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup2、修改更新源文件 sudo gedit /etc/apt/sources.list3、删除文件全部内容，，更换成下列内容。
deb karmic main restricted universe multiversedeb karmic-security main restricted universe multiversedeb karmic-updates main restricted universe multiversedeb karmic-proposed main restricted universe multiversedeb karmic-backports main restricted universe multiversedeb-src karmic main restricted universe multiversedeb-src karmic-security main restricted universe multiversedeb-src karmic-updates main restricted universe multiversedeb-src karmic-proposed main restricted universe multiversedeb-src karmic-backports main restricted universe multiversedeb karmic-security main restricteddeb-src karmic-security main restricteddeb karmic-security universedeb-src karmic-security universedeb karmic-security multiversedeb-src karmic-security multiverse
我用着速度还很快
图1：下载速度快着呢。
销售世界上第一号的产品——不是汽车，
