[oracle@cesdb soft]$ dbca -silent -createDatabase -responseFile /u01/soft/dbca_install.rsp -ignorePreReqs

[FATAL] [DBT-06006] Unable to create directory: (/oradata/cesdb/).

  CAUSE: Proper permissions are not granted to create the directory or there is no space left in the volume.

解决方案：

[root@cesdb ~]# chmod 777 /oradata/