error: failed to start the server: could not find the server named `jamf.tomcat8.service'.

Check what version of MySQL you have installed. If you have version 8.30.0 you are probably running into a PI. 

What do you mean by running into a PI, is there any issue regarding this MySQL version?, kind regards

@Username PI stands for Product Issue (aka a problem). There is a known PI for MySQL 8.30.0, and Jamf Pro is not currently compatible with it, so you'll need to refer to your previous version of MySQL.

is there any way to uninstall the 8.30.0 and install a previous version?

Removed to fix threading

@Username One of the first hist from Googling "mysql uninstall ubuntu:: https://www.linuxshelltips.com/completely-uninstall-mysql-server-in-ubuntu/

You'll probably want to delete any Jamf Pro database that's been created and then re-run the Jamf Pro installer after installing an older version of MySQL. That is based on the expectation you're doing your initial setup. If you had an existing install you should revert to your backup of your database you should have taken before updating MySQL.

thank you, yes we're in the initial set up, so should we start from the beginning or there's a way to skip starting from the beginning and just delete and install MySQL?

@Username You're probably OK just deleting MySQL and any database files that were created in your initial try. I would ask if there's a specific reason you're going through the manual setup process instead of running the installer script which handles most of the minutia: https://docs.jamf.com/10.40.0/jamf-pro/install-guide-linux/Installing_Jamf_Pro_Using_the_Installer.html

Thank you, we're using the manual process, because we don't have a visual interface, we're using Terminal by SSH to an AWS instance. 

The linux installer for Jamf Pro doesn't require a GUI, and can be run via an ssh session (unless something has changed since I switched to a Jamf Cloud hosted environment that is)