I am trying to debug some ubuntu installation issues from a customized ISO using the source image for ubuntu server 18.04 here: http://releases.ubuntu.com/18.04.2/ubuntu-18.04.2-live-server-amd64.iso (I am doing the customization similar to how Cubic is done).
When I run the installation after my customization and repackaging, I am selecting the first option 'Install Ubuntu Server' and proceed with a text based installer.
My question: What is the name of this CLI based installer?
I have run across Ubuiquity, Subiquity, curtin and debian installer names while doing searches for the issue I am trying to chase down, and I basically want to find this installer's name and source to continue troubleshooting.
Bonus: I would love a link to this installer's source.