You can install JRE 1.8 x64 and try to connect to IM/Gateway and if you still see the same issue, please provide the above logs again. Please also provide the gatewayUser.properties file from /opt/emc/scaleio/gateway/webapps/ROOT/WEB-INF/classes/  Since you are uninstalling 9-ea and installing 1.8, you may need to best reinstall IM/GW.
 Resolved: Installed JRE 1.8 (version 8).  JRE 1.9 (version 9ea does not work).  Configuration  ScaleIO 2.0.0.2 Ubuntu 14.04 (4.4.0-53-generic) FireFox 50.1.0 Oracle Java version 9-ea (amd64)  Completed only install of IM/Gateway to server.  Attempting to "Log in to the IM server (https:// )" to finish the install to MDM/SDS/SDC nodes.   I enter IM server IP address in Chrome (Version 55.0.2883.87) on remote admin server but get "This site can't be reached.  Refused to connect".  The remote admin server can ping IM/Gateway server and has 1920x1080 resolution.  ssh to IM server:   $ sudo service scaleio-gateway status [sudo] password for administrator: scaleio-gateway start/running, process 11193  $ sudo cat /var/log/upstart/scaleio-gateway.log ....................... scaleio-ams: The service has not been started after 10 seconds. scaleio-ams: Launching su - root -c /opt/emc/scaleio/gateway/bin/startup.sh. stdin: is not a tty ................... Note: Above message repeated and added every 10 seconds.  I also tried logging into IM from FireFox on the IM server using the IP of the server ([URL] but with the same result - Unable to connect.  Here's recorder Java and IM/Gateway Install.  Java install procedure:  $ sudo add-apt-repository -y ppa:webupd8team/java $ sudo apt-get update $ sudo apt-get install oracle-java9-installer $ sudo apt-get install oracle-java9-set-default $ sudo java -version   java version "9-ea"   Java(TM) SE Runtime Environment (build 9-ea+140)   Java HotSpot(TM) 64-Bit Server VM (build 9-ea+140, mixed mode)  IM/Gateway install prcedure:  $ sudo GATEWAY_ADMIN_PASSWORD= dpkg -i emc-scaleio-gateway_2.0-7120.0_amd64.deb     (Reading database ... 185884 files and directories currently installed.)   Preparing to unpack emc-scaleio-gateway_2.0-7120.0_amd64.deb ...   validating java version   /usr/bin/java   found the Java executable in PATH   applying pattern "java version"   version java version "9-ea"   /var/lib/dpkg/tmp.ci/preinst: line 321: [[: java version "9-ea": syntax error: invalid arithmetic operator (error token is ""9-ea"")   java platform that was found : Java HotSpot(TM) 64-Bit Server VM (build 9-ea+140, mixed mode)   Running pre installation verifications   /usr/bin/keytool   found the keytool executable in PATH   /var/lib/dpkg/tmp.ci/preinst: line 113: rpm: command not found   found suffice RAM memory : 65939612   Unpacking emc-scaleio-gateway (2.0-7120.0) ...   Setting up emc-scaleio-gateway (2.0-7120.0) ...   Running post install operations (simulated rpm,install)   /usr/bin/java   /usr/bin/keytool   Certificate stored in file    Installing the web server service/process to run as root(default).   To run as a different user, define the variable GATEWAY_RUN_USER.    updating ldap properties in lockbox if necessary   Checking if needs to update LDAP properties in lockbox   Can't find a LockBox to update   2   Creating service file /etc/init/scaleio-gateway.conf   Creating service file /opt/emc/scaleio/gateway/bin/scaleio-gateway-wd.bash   gateway user  : root   Creating service file /etc/init.d/scaleio-gateway   4   Adding system startup for /etc/init.d/scaleio-gateway ...     /etc/rc0.d/K20scaleio-gateway -> ../init.d/scaleio-gateway     /etc/rc1.d/K20scaleio-gateway -> ../init.d/scaleio-gateway     /etc/rc6.d/K20scaleio-gateway -> ../init.d/scaleio-gateway     /etc/rc2.d/S20scaleio-gateway -> ../init.d/scaleio-gateway     /etc/rc3.d/S20scaleio-gateway -> ../init.d/scaleio-gateway     /etc/rc4.d/S20scaleio-gateway -> ../init.d/scaleio-gateway     /etc/rc5.d/S20scaleio-gateway -> ../init.d/scaleio-gateway   Cannot query status of the EMC ScaleIO Gateway.  Is there a specific port that needs to be specified with the IP address?  Ports 80 and 443.  Any idea why I can't connect to IM via remote server web browser.   Something I need to check?  Thanks, CCMC 
ScaleIO: Can't log into Installation Manager from remote server web browser