I noticed there is no link to makebootabletiny.c in your guide, you can get it here http://stefanschramm.net/dev/makebootabletiny/makebootabletiny.c
I wonder if there is a better place to keep this file?
Also: It’s possible to install haiku from Linux by copying files directly to a bfs partition using the fuse driver, but it’s even more involved Problems booting on a Sony Vaio P - #8 by Munchausen