bsdinstaller question

[Lee Brown]

I've rolled my own release, placed base.txz, kernel.txz and MANIFEST onto
my ftp server.

The stock install CD complains about the checksum for base.txz because it
uses the MANIFEST from the ISO and ignores the one at the FTP site.

Is there some way I can override this?  I couldn't see anything in the
bsdinstall manpage.

I'd rather not have to spend the time generating boot media, it's quicker
to go into Shell mode and manually install the OS.

Thanks -- lee