If you get an error like below while running root.sh file on the installation screen, you need to restart the installation.
Performing root user operation for Oracle 18c
The following environment variables are set as:
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.
I encountered the error INS-00001 on the upgrade screen. this is a generic mistake.
for solution Use another Unzip utility, Try the installation again. open the setup files in a different folder.
Have a nice day.