20:10:05 ERROR juju.cmd.juju.commands bootstrap.go:519 failed to bootstrap model: cannot start bootstrap instance: unexpected: ServerError: 400 BAD REQUEST (Failed to render preseed: 'NoneType' object has no attribute 'url')
Seems that preseed rendering failed for that machine. Can you include the MAAS logs for around that time?
20:10:05 ERROR juju.cmd. juju.commands bootstrap.go:519 failed to bootstrap model: cannot start bootstrap instance: unexpected: ServerError: 400 BAD REQUEST (Failed to render preseed: 'NoneType' object has no attribute 'url')
Seems that preseed rendering failed for that machine. Can you include the MAAS logs for around that time?