After switching to a new Maximo database server with a different Maximo schema password , a future Fix Pack installation may fail even though the Maximo site is running fine after the switch.
You want to move the Maximo7.x schema to a new database server ( hardware) .Update the database properties ( db hostname, schema password etc) in the maximo.properties file , re-encrypt the file , rebuild the maximo.ear file , deploy and Maximo is up and running again.
Also updates the IBM/SMP/etc/install.properties file to reflect the new database properties.
Now you want to install a new fix pack , and during the install process, it fails with an invalid username/password exception.
This is a product defect filed under APAR IV36849.
The installer is looking for the database password ( Database.Oracle.SchemaPassword) in the install.properties file and that is not present there.
Even if present, the encrypted password could be invalid as Maximo administration/install documentation does not instruct to update the database password in the install.properties file during database properties changes.
Type in the password for Database.Oracle.SchemaPassword in the IBM/smp/etc/install.properties file , as clear text and re-run the installer.