You will have already placed the <filename>vmlinux</filename>, <filename>initrd.gz</filename>, <filename>yaboot</filename>, and <filename>yaboot.conf</filename> files at the root level of your HFS partition in <xref linkend="files-newworld"/>. You will now have to boot into OpenFirmware (see <xref linkend="invoking-openfirmware"/>). At the prompt, type <informalexample><screen>
0 > boot hd:<replaceable>x</replaceable>,yaboot
</screen></informalexample> replacing <replaceable>x</replaceable> with the partition number of the HFS partition where the kernel and yaboot files were placed, followed by a &enterkey;. On some machines, you may need to use <userinput>ide0:</userinput> instead of <userinput>hd:</userinput>. In a few more seconds you will see a yaboot prompt <informalexample><screen>
boot:
</screen></informalexample> At yaboot's <prompt>boot:</prompt> prompt, type either <userinput>install</userinput> or <userinput>install video=ofonly</userinput> followed by a &enterkey;. The <userinput>video=ofonly</userinput> argument is for maximum compatibility; you can try it if <userinput>install</userinput> doesn't work. The Debian installation program should start.
