Change root.flp from a new format CPIO archive to a tar archive.
Unless we're willing to change the main tarballs from tar format to
"newc" (or, even better, "crc") cpio format, we need to use one common
one for all and that's tar for now. Install will now grab "root floppy"
from an ftp site if that's what you've got set.
Fix even more gripes from Poul's list.
P.S. As soon as I get the distfiles copied over to freefall tomorrow
morning, those of you wishing to test minimal installs over ftp should
be able to do so by grabbing the boot floppy and nothing else. Keep
your eyes open for my announcement.
c454369591