Oracle11gR2单实例+redhat6.5+virtualBox安装到dbca出现错误，如何解决？

环境变量中的NLS试过

                export NLS_LANG=AMERICAN_AMERICA.UTF8
                export NLS_LANG='simplified chinese'_china.ZHS16GBK
                export ORA_NLS33=$ORACLE_HOME/ocommon/nls/admin/data

注册表也改了，都不行，到底咋回事啊？

[oracle@db11g ~]$ vi .bash_profile 
# .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
        . ~/.bashrc
fi

# User specific environment and startup programs

PATH=$PATH:$HOME/bin
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1
export ORACLE_UNQNAME=db11g
export ORACLE_SID=db11g
export PATH=$ORACLE_HOME/bin:$ORACLE_HOME/OPatch:$PATH
export NLS_LANG='simplified chinese'_china.ZHS16GBK
#export NLS_LANG=AMERICAN_AMERICA.UTF8
#export NLS_LANG=AMERICAN_AMERICA.ZHS16GBK
export ORA_NLS33=$ORACLE_HOME/ocommon/nls/admin/data

export PATH