Can't find port (OSX and Ubuntu)

This seems to be a common problem but I have not found a solution and am getting very frustrated. After a week days of not using the Arduboy on account of being busy I decided to continue following the pong tutorial I have been working with.
Its not being recognized on either of the computers I am using.
Any insight?

For Ubuntu, I had to make my user a member of the dialout group:
In a terminal, enter the command:
sudo usermod -a -G dialout <username>

I also had to disable the Modem Manager service:
In a terminal, enter the command:
sudo systemctl disable ModemManager

It’s best to reboot after doing this.

Did that, Nothing : /

Is your Arduboy powered on?

Do you see anything added to the output of the command
dmesg
when you connect and switch on the Arduboy?
Something like:
usb 2-1.1: new full-speed USB device number 7 using ehci-pci
usb 2-1.1: New USB device found, idVendor=2341, idProduct=8036

Are you able to try it on a windows machine? You should see the yellow led flash once and hear the USB connection sound.

Also make sure you are using a good quality USB cable. Try a couple different cables if you can.

Tried a bunch of cables including ones I have actually transferred code with and nothing :<

Any other ideas? Just doesn’t make sense.