CS-server问题.请架过的朋友帮忙一下

我在RedHat AS4上加了CS服务器.但是一运行就提示以下内容.
大家帮忙看一下
Auto detecting CPU
Using AMD-Opteron (64 bit) Optimised binary.
Auto-restarting the server on crash
./hlds_run: line 359: ./hlds_amd64: cannot execute binary file
Add "-debug" to the ./hlds_run command line to generate a debug.log to help with solving this problem
四  3月 29 05:04:51 CST 2007: Server restart in 10 seconds
./hlds_run: line 359: ./hlds_amd64: cannot execute binary file
Add "-debug" to the ./hlds_run command line to generate a debug.log to help with solving this problem