Hi Yomar and welcome to the UTM Community!
Yes, you must configure the password for loginuser on the 'Shell Access' tab of 'System Settings' so that you can login at the console. The only way to get to the command line directly as root is with an SSH key.
The original question 12 years ago indicates that the poster was using root@ instead of root.
Cheers - Bob
Hi Yomar and welcome to the UTM Community!
Yes, you must configure the password for loginuser on the 'Shell Access' tab of 'System Settings' so that you can login at the console. The only way to get to the command line directly as root is with an SSH key.
The original question 12 years ago indicates that the poster was using root@ instead of root.
Cheers - Bob