unzip jboss-eap-6.4.0.zip
unzip jboss-eap-7.0.0.ER5.zip

cp jboss-eap-6.4/standalone/configuration/standalone-full-ha.xml jboss-eap-7.0/standalone/configuration/
./jboss-eap-7.0/bin/standalone.sh -c standalone-full-ha.xml --admin-only

11:26:55,792 ERROR [org.jboss.as.controller.management-operation] (ServerService Thread Pool -- 5) WFLYCTL0402: Subsystems [jacorb] provided by legacy extension 'org.jboss.as.jacorb' are not supported on servers running this version. Both the subsystem and the extension must be removed or migrated before the server will function.
11:26:55,795 ERROR [org.jboss.as.controller.management-operation] (ServerService Thread Pool -- 8) WFLYCTL0402: Subsystems [cmp] provided by legacy extension 'org.jboss.as.cmp' are not supported on servers running this version. Both the subsystem and the extension must be removed or migrated before the server will function.
11:26:55,793 ERROR [org.jboss.as.controller.management-operation] (ServerService Thread Pool -- 12) WFLYCTL0402: Subsystems [threads] provided by legacy extension 'org.jboss.as.threads' are not supported on servers running this version. Both the subsystem and the extension must be removed or migrated before the server will function.
11:26:55,800 ERROR [org.jboss.as.controller.management-operation] (ServerService Thread Pool -- 18) WFLYCTL0402: Subsystems [messaging] provided by legacy extension 'org.jboss.as.messaging' are not supported on servers running this version. Both the subsystem and the extension must be removed or migrated before the server will function.
11:26:55,800 ERROR [org.jboss.as.controller.management-operation] (ServerService Thread Pool -- 9) WFLYCTL0402: Subsystems [jaxr] provided by legacy extension 'org.jboss.as.jaxr' are not supported on servers running this version. Both the subsystem and the extension must be removed or migrated before the server will function.