我正在尝试在 Linux Ubuntu 10.04 上安装 Cisco VPN 客户端。安装程序创建目录，将所有必需的文件放入其中，然后无法启动二进制文件。我试着自己启动它，系统也责备我。仔细检查会得出以下结果：
eugene@eugene-desktop:/opt/cisco/vpn/bin$ sudo chmod u+x vpnagentd
eugene@eugene-desktop:/opt/cisco/vpn/bin$ ls -la
total 5124
drwxr-xr-x 2 root root 4096 2010-10-23 11:51 .
drwxr-xr-x 6 root root 4096 2010-10-23 11:51 ..
-rwxr-xr-x 1 root root 1607236 2010-10-23 11:51 vpn
-rwsr-xr-x 1 root root 1204692 2010-10-23 11:51 vpnagentd
-r--r--r-- 1 root root 697380 2010-10-23 11:51 vpndownloader.sh
-rwxr-xr-x 1 root root 1712708 2010-10-23 11:51 vpnui
-rwxr-xr-x 1 root root 3654 2010-10-23 11:51 vpn_uninstall.sh
eugene@eugene-desktop:/opt/cisco/vpn/bin$ ./vpnagentd
bash: ./vpnagentd: No such …