The Ubuntu installer developers maintain and develop the Ubuntu installer, which is a derivative of the Debian installer (d-i).

If you have a bug in the installer found on the "desktop" or "live" CD (the graphical installer), then please file that against the "ubiquity" package (https://bugs.launchpad.net/ubuntu/+source/ubiquity). If you have a bug in the installer found on the "alternate", "server", or "install" CD (the text-based installer), then please file that against the "debian-installer" package in the first instance (https://bugs.launchpad.net/ubuntu/+source/debian-installer). It may be assigned to a more appropriate package later.

Asking to join this team is the same as asking for commit access to parts of the installer. Please only join this team if you are an active Ubuntu installer developer.

Mailing list for discussion is at: https://lists.ubuntu.com/mailman/listinfo/Ubuntu-installer