# rpm -qa | grep -E '^(java|jdk|jre)-' jre-1.6.0_03-fcs java-1.4.2-gcj-compat-1.4.2.0-27jpp jdk-1.6.0_03-fcs java is a CentOS package. jdk and jre are from Sun. (I need Java >= 1.5.0 for an application I'm installing.) # update-alternatives --config java There are 1 programs which provide 'java'. Selection Command ----------------------------------------------- *+ 1 /usr/lib/jvm/jre-1.4.2-gcj/bin/java But how do I tell my system to use the 1.6.0 version? Is there a step that I'm missing to finish the upgrading? Thanks, Scott