How to execute root.sh when installing oracle 11g r2?

Question

Oracle

I install Oracle 11g r2 on Oracle Linux 7.
I got to the last point where you need to execute scripts as root:
/home/oracle/app/oraInventory/orainstRoot.sh
/home/oracle/app/oracle/product/11.2.0/ dbhome_1/root.sh
The first one works. When I run the second one, I get the following message:
Performing root user operation for Oracle 11g
The following environment variables are set as:
ORACLE_OWNER= oracle
ORACLE_HOME= /home/oracle/app/oracle/product/11.2.0/dbhome_1
Enter the full pathname of the local bin directory: [/usr/local/bin]:
The contents of "dbhome" have not changed. No need to overwrite.
The contents of "oraenv" have not changed. No need to overwrite.
The contents of "coraenv" have not changed. No need to overwrite.
Entries will be added to the /etc/oratab file as needed by
Database Configuration Assistant when a database is created
Finished running generic part of root script.
Now product-specific root actions will be performed.
Finished product-specific root actions.
./root.sh: line 14: /home/oracle/app/oracle/product/11.2.0/dbhome_1/rdbms/install/rootadd_rdbms.sh: No such file or directory
./root.sh: line 16: /home /oracle/app/oracle/product/11.2.0/dbhome_1/rdbms/install/rootadd_filemap.sh: No such file or directory

These scripts do not exist at the given path. I tried to find them on another machine (although Win is there) - they are not there either.
The only thing I sin on: when the installer reached the execution of these scripts, I simply closed it (I pressed close instead of finish). Perhaps these scripts exist only while the installer is running as temporary files?
Help me understand, good people!

Answer 1

The question is considered irrelevant. Everything was solved by reinstalling the OS and installing oracle 12C R2.
Possible causes of the problem:
1) Installation was not performed from under the oracle user (more precisely, the installer was launched from the terminal on behalf of oracle, but I entered OL7 under another less privileged user)
2) I saw it in the open spaces Internet information that oracle linux 7 is not compatible with oracle 11g R2. He (OL7) seems to need a newer version of the DBMS.