hi all!
NOW ORACLE12cR2 for Linux released.I won't test its new feature,so dowload oracle12cR2 for linux to install on oracle linux7.3,and it appear an error when DBCA,the log is:

cat /u01/app/oracle/cfgtoollogs/dbca/orcl/orcl.log
[ 2017-03-10 12:45:45.433 CST ] Copying database files
DBCA_PROGRESS : 1%
DBCA_PROGRESS : 13%
DBCA_PROGRESS : 25%
[ 2017-03-10 12:47:32.534 CST ] Creating and starting Oracle instance
DBCA_PROGRESS : 26%
DBCA_PROGRESS : 30%
DBCA_PROGRESS : 31%
DBCA_PROGRESS : 35%
DBCA_PROGRESS : 38%
DBCA_PROGRESS : 39%
[ 2017-03-10 12:56:24.303 CST ] <i>Error while executing "/u01/app/oracle/product/12.2.0/dbhome_1/rdbms/admin/execemx.sql". Refer to "/u01/app/oracle/cfgtoollogs/dbca/orcl/execemx0.log" for more details. Error in Process: /u01/app/oracle/product/12.2.0/dbhome_1/perl/bin/perl</i>
[ 2017-03-10 12:57:11.414 CST ] DBCA_PROGRESS : DBCA Operation failed.

And the install log is:
cat /u01/app/oraInventory/logs/installActions2017-03-10_11-53-41AM.log
<INFO: Creating and starting Oracle instance
WARNING: Skipping line: Creating and starting Oracle instance
INFO: Read: 26% complete
WARNING: Skipping line: 26% complete
INFO: Read: 30% complete
WARNING: Skipping line: 30% complete
INFO: Read: 31% complete
WARNING: Skipping line: 31% complete
INFO: Read: 35% complete
WARNING: Skipping line: 35% complete
INFO: Read: 38% complete
WARNING: Skipping line: 38% complete
INFO: Read: 39% complete
WARNING: Skipping line: 39% complete
INFO: Read: DBCA Operation failed.
INFO: DBCA Operation failed.
WARNING: Skipping line: DBCA Operation failed.
INFO: Read: Look at the log file "/u01/app/oracle/cfgtoollogs/dbca/orcl/orcl.log" for further details.
INFO: Look at the log file "/u01/app/oracle/cfgtoollogs/dbca/orcl/orcl.log" for further details.
WARNING: Skipping line: Look at the log file "/u01/app/oracle/cfgtoollogs/dbca/orcl/orcl.log" for further details.
INFO: Completed Plugin named: Oracle Database Configuration Assistant
INFO: Oracle Database Configuration Assistant failed.
INFO: Oracle Database Configuration Assistant failed.
INFO: ConfigClient.executeToolsInAggregate action performed
INFO: Exiting ConfigClient.executeToolsInAggregate method
INFO: Calling event ConfigToolsExecuted
INFO:
The Runconfig command constructed is /u01/app/oracle/product/12.2.0/dbhome_1/oui/bin/runConfig.sh ORACLE_HOME=/u01/app/oracle/product/12.2.0/dbhome_1 MODE=perform ACTION=configure RERUN=false $*
INFO: Created a new file /u01/app/oracle/product/12.2.0/dbhome_1/cfgtoollogs/configToolFailedCommands
INFO: Since the option is to overwrite the existing /u01/app/oracle/product/12.2.0/dbhome_1/cfgtoollogs/configToolFailedCommands file, backing it up
INFO: The backed up file name is /u01/app/oracle/product/12.2.0/dbhome_1/cfgtoollogs/configToolFailedCommands.bak
INFO: Adding ExitStatus SUCCESS_MINUS_RECTOOL to the exit status set
INFO: ConfigClient.saveSession method called
INFO: Calling event ConfigSessionEnding
INFO: ConfigClient.endSession method called
INFO: Completed Configuration
INFO: Cleaning up, please wait...
INFO: Setup completed with overall status as Failed>

Sometimes the same mistakes occur rdbms/admin/dbmssml.sql
And wo try install it on centos 6.6 ,the mistakes occur again.
I reinstall /u01/app/oracle/product/12.2.0/dbhome_1/perl/bin/perl problem again。
SO can you tell me why?or can you gave me a link that install oracle 12cr2 on oracle linux document?