./dbca: line 124: 27457 Killed $JRE_DIR/bin/jre -DORACLE_HOME=$OH -DJDBC_PROTOCOL=thin -mx64m -classpath $CLASSPATH oracle.sysman.assistants.dbca.Dbca $ARGUMENTS
The error that is causing your problem is "27457 Killed". You get this error when someone issues a "kill" command on your Linux system against this process. Apparently, this process is part of the DBCA, which is Oracle's tool to create the database. This should not preclude the software from being installed, just your database from being created. Try to fire up the DBCA manually from the command line and creating your database with the tool.
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