Need Help Building CDImages Locally

[theofficialgman]

I am trying to use ubuntu-cdimage https://git.launchpad.net/ubuntu-cdimage to create my own images/ISOs locally for architectures that are not natively supported by some of the official seed combinations https://ubuntu-archive-team.ubuntu.com/seeds/ (for example, there are no kubuntu arm64 ISOs)

I can checkout the ubuntu-cdimage repo and run the python scripts locally. However on trying to target any of the seeds/arch combinations, I get an error along the lines of:

No live filesystem builder known for %s" % arch

I am not using launchpad to attempt to build these IOSs and need to do this locally. How can I generate IOSs that are the same as Ubuntu release ISOs with the provided seeds?

Before someone replies, these guides are NOT what I want https://help.ubuntu.com/community/Li...ionFromScratch https://wiki.ubuntu.com/ReleaseTeam/CDImageSetup . I need to build the ISO from scratch using the ACTUAL release seed files.