求助:linux上安装compat-libstdc++的问题

compat-libgcc-296-2.96-135.i386.rpm
compat-libstdc++-296-2.96-135.i386.rpm
compat-libstdc++-33-3.2.3-55.fc5.i386.rpm

我在FC5 上安装oracle9i,上面的三个包总是装不上,出现下面的情况:
[root@xxx home]# rpm -ivh compat-libgcc-296-2.96-135.i386.rpm
warning: compat-libgcc-296-2.96-135.i386.rpm: Header V3 DSA signature: NOKEY, key ID 4f2a6fd2
Preparing...                ########################################### [100%]
        package compat-libgcc-296-2.96-135 is already installed

用rpm -q 命令查看或用rpm -e命令删除时却又说没有安装上。请问这是什么原因呢?谢谢!