I installed oracle 19c on centos 8, there was an error during installation when configuring the listener. Manually running Net Assistance (/bin/netca) and trying to add a listener ends with a message: "no valid ip address returned for the host":
I performed an installation on Centos 7 with automatic preinstallation configuration under oracle and the same message.
I probably didn't configure something in linux, because I don't know much about it.
After a week of hard work...
I managed to install, two possible reasons for this error:
I installed from my ORACLE account, but by "SU ORACLE" I did not log in as ORALCE, because then all the environment settings are loaded
I used another (newer) version of the oracle package for automatic configuration (https://yum.oracle.com/repo/OracleLinux/OL7/latest/x86_64/getPackage/oracle-database-preinstall-19c-1.0-2.el7.x86_64.rpm)
It's possible that I had a different hostname set in the oracle scripts than on the server in /etc/hostname - very likely, due to the content of the error...
In my case, I was installing Oracle 19c in CentOS stream 8 in a VM with VirtualBox.
I added in /etc/hosts: 10.0.2.15 centoss8 centoss8.local
(before this I added CentOSs8 and CentOSs8.local as an alias of 127.0.0.1 and didn't work)
and in /etc/hostname: centoss8.local
reboot, and run
/etc/init.d/oracledb_ORCLCDB-19c configure
it's worked for me
