升级Fedora 4到Fedora 9

用下面简单的方法就可以把Fedora 4系统升级到Fedora 9

1.安装fedora-release和fedora-release-notes，下载地址：

http://download.fedora.RedHat.com/pub/fedora/linux/releases/9/Everything/i386/os/Packages/fedora-release-9-2.noarch.rpm

http://download.fedora.redhat.com/pub/fedora/linux/releases/9/Everything/i386/os/Packages/fedora-release-notes-9.0.0-1.noarch.rpm

运行：

rpm -Uvh fedora-release-9-2.noarch.rpm fedora-release-notes-9.0.0-1.noarch.rpm

2.升级yum

运行：

yum update

3.重启系统。