DBCA silent database creation rolls back prompt when asked for sys password
Bug 21163674 : DBCA SILENT MODE DELETES LINES FROM SCREEN AND DISPLAYS NO PROMPT


  This happens when
  XTERM is run with both "Enable Reverse Wraparound" &amp; "Enable Auto
  Wraparound" enabled. As soon as one of these is disabled, then dbca
  functions correctly.
  
  ...
  
  With putty , settings -> terminal, uncheck 'Auto wrap mode initially on'.
  
  Another workaround is to use silent installation with a response file.