Probleme to found a media for installation

[debian-sparc]

Hi !


I got a sparcstation 20 , with cdrom reader , net-tpe and no floppy drive
because i've not read entirely the howto , i've downloader the sparc CD1
testing CD , and it is not bootable , so no cdrom and no floppy for
installing debian on it

How can i do via network ? (netboot )

thanks