I'm installing ERP 6.0.
Here is a log file which last error message suggested to look at.
Package_checker.java.log
[root@fusionims CENTRAL]# cat package_checker.java.log |more
java version "1.6.0_45"
Java(TM) SE Runtime Environment (build 6.1.051)
SAP Java Server VM (build 6.1.051 23.5-b02, May 30 2013 00:33:03 - 61_REL - optU -
linux amd64 - 6 - bas2:197575 (mixed mode))
Exception in thread "main" java.lang.NoClassDefFoundError: com/sap/inst/migcheck/M
igrationChecker
Caused by: java.lang.ClassNotFoundException: com.sap.inst.migcheck.MigrationChecke
r
at java.net.URLClassLoader$1.run(URLClassLoader.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:243)
at java.lang.ClassLoader.loadClass(ClassLoader.java:372)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:344)
at java.lang.ClassLoader.loadClass(ClassLoader.java:313)
Could not find the main class: com.sap.inst.migcheck.MigrationChecker. Program wi
ll exit.