Problem to run ./runInsaller Oracle 18c

[Pyton78]

I try to install Oracle 18c database. They want to run ./runInstaller, when I try to do, I have a output: "You must be root user...". I activate root user, but output is still the same

 

[f33dm3bits]

How did you run the installer?

 

[Deleted member 108694]

Also would add what version of Linux are you using?