let's try a solution to a common issue with ubuntu:
Run this in the terminal and reboot the machine afterwards sudo apt -y remove brltty.
It removes the brltty package which claims the usb connection when it's running.
Do you have any entries in the 'additional serial ports' list? /dev/tty* is not normally a printer, and OctoPrint doesn't list them by default as far as I know. Normally a printer would be on /dev/ttyUSB0 for example.
So Im a complete noob at 3d printing and I was following a guide on how to install klipper and fluidd with octoprint...
Not sure how to even get back to the installation of moonraker, fluidd, and klipper but those are some of the things I have installed and may be what the hiccup is?
Brand new ender 3 v2. I think it might be because I followed a tutorial on how to install octoprint and it installed klipper, moonsail, moonraker and fluidd. I don't know how to uninstall them lol. I didn't have the printer at the time. I'm brand new and thought it was something I was supposed to install.
So Here is my current firmware that I'm working with. It is from the creality website. I have a Cr Touch on installed on my printer.
I'm not sure which one from Marlin that I can update with because in the examples folder from Marlin's github it only gives me 3 different board which none of them that I have (I have 4.2.7)
@Emberlynn, While many of the members of this community are excellent resources, I don't believe any of them are omnipotent. I would strongly suggest that you open your own Get Help topic and fill in the template with YOUR information so we can provide the personalized help you expect.