oracle 21c xe install on opensuse port error

Hi Experts,

I am trying to install Oracle 21C XE on my local laptop for demo purposes. It fails with below error during "/etc/init.d/oracle-xe-21c configure" step, saying port 5500 is already being used. I couldnt find any help to change the port during installation. The documentation says about EMCA command, but I am unable to change it.

Changed the /etc/hosts as below:

127.0.0.1 localhost.localdomain localhost

# special IPv6 addresses

::1       localhost ipv6-localhost ipv6-loopback

fe00::0     ipv6-localnet

ff00::0     ipv6-mcastprefix

ff02::1     ipv6-allnodes

ff02::2     ipv6-allrouters

ff02::3     ipv6-allhosts

127.0.0.1 host.minikube.internal localhost

192.168.1.5 control-plane.minikube.internal localhost