CJS-00030 SAP Installation error.

First you will have to reset your installation and delete installation log directory.

1- Be sure that on the root session you are using to launch sapinst for DBInstance there is no ORACLE_HOME environment variable set.

2- Check your oraInst.loc file (see SAP note 350251), adapt it so that

inventory_loc=/oracle/oraInventory

and create directory if necessary. This avoid problems on unix with previous installations of oracle.

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Also

ORACLE_HOME=/opt/oracle/product/102_32 is not a valid path. 
it should be like 
/oracle/[SID]/102_32

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Also comment out environment variable under file 

vim /root/.bash_profile

#ORACLE_HOME=/oracle/SID/102_32