Another quick tip about running DBCA:
# Error:
[oracle@dbsrv database]$ ./runInstaller Starting Oracle Universal Installer... Checking installer requirements... All installer requirements met. Preparing to launch Oracle Universal Installer from /tmp/OraInstall2015-06-25_06-37-23PM. Please wait ...Error in CreateOUIProcess(): 13 : Permission denied
# Solution:
mount -t ext3 -o remount default /tmp
Ok doke?
Matheus.