You can also download the jar file to the Linux server by using the wget command as the root user. For example:
# wget http://LifeCycle_Manager_Server_IP_address:Port#/update/installLcmService.jar
If you used the default value (4060), the Port# is 4062.
If you do not know the value, look in the LCMInstallDir/LCM-Server/lcm.properties file for the value of http.server.port.