apt-get install ia32-libs
Du benötigst unter Linux 64bit die 32 Libs.
und zu dem Chmod habe ich etwas interessantes im Wiki gefunden:
ZitatNOTE: Be sure you set permissions for samp03svr and announce if you want to run an internet server! If you don't do this, you'll get a permission denied error. To set permissions, execute chmod 700 * in the SA:MP server directory. It's NOT a good idea to run the server (or any other program for that matter) under root.