Kickstart: is there a way to host installation files locally without creating an entire mirror?

[Masao Kitamura]

Currently, my kickstart file uses this:

url --url http://archive.ubuntu.com/ubuntu

However, I'd like to be able to use the 10.10 alternate ISO for most
of the installation so it doesn't have to grab everything over the
Internet.

How can I tell Kickstart to use a local network ISO (FTP/HTTP), but
grab anything else it needs over the net?

Thanks,

Masao