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+<!-- retain these comments for translator revision tracking -->
+<!-- $Id$ -->
+
+  <sect2 arch="powerpc" id="boot-cd"><title>Booting from a CD-ROM</title>
+
+&boot-installer-intro-cd.xml;
+
+<para>
+
+Currently, the only &arch-title; subarchitectures that support CD-ROM
+booting are PReP and New World PowerMacs. On PowerMacs, hold the
+<keycap>c</keycap> key, or else the combination of
+<keycap>Command</keycap>, <keycap>Option</keycap>,
+<keycap>Shift</keycap>, and <keycap>Delete</keycap>
+keys together while booting to boot from the CD-ROM.
+
+</para><para>
+
+OldWorld PowerMacs will not boot a Debian CD, because OldWorld
+computers relied on a Mac OS ROM CD boot driver to be present on the CD,
+and a free-software version of this driver is not available. All
+OldWorld systems have floppy drives, so use the floppy drive to launch
+the installer, and then point the installer to the CD for the needed
+files.
+
+</para><para>
+
+If your system doesn't boot directly from CD-ROM, you can still use
+the CD-ROM to install the system. On NewWorlds, you can also use an
+OpenFirmware command to boot from the CD-ROM manually. Follow the
+instructions in <xref linkend="boot-newworld"/> for booting from
+the hard disk, except use the path to <command>yaboot</command> on the
+CD at the OF prompt, such as
+
+<informalexample><screen>
+0 &gt; boot cd:,\install\yaboot
+</screen></informalexample>
+
+</para>
+  </sect2>
+
+  <sect2 arch="powerpc" id="install-drive">
+  <title>Booting from Hard Disk</title>
+
+&boot-installer-intro-hd.xml;
+
+  <sect3><title>Booting CHRP from OpenFirmware</title>
+
+<para>
+
+  <emphasis>Not yet written.</emphasis>
+
+</para>
+   </sect3>
+
+   <sect3><title>Booting OldWorld PowerMacs from MacOS</title>
+<para>
+
+If you set up BootX in <xref linkend="files-oldworld"/>, you can
+use it to boot into the installation system. Double click the
+<guiicon>BootX</guiicon> application icon. Click on the
+<guibutton>Options</guibutton> button and select <guilabel>Use
+Specified RAM Disk</guilabel>. This will give you the
+chance to select the <filename>ramdisk.image.gz</filename> file. You
+may need to select the <guilabel>No Video Driver</guilabel> checkbox,
+depending on your hardware. Then click the
+<guibutton>Linux</guibutton> button to shut down MacOS and launch the
+installer.
+
+</para>
+   </sect3>
+
+
+  <sect3 id="boot-newworld">
+  <title>Booting NewWorld Macs from OpenFirmware</title>
+<para>
+
+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"/>.
+Restart the computer, and immediately (during the chime) hold down the
+<keycap>Option</keycap>, <keycap>Command (cloverleaf/Apple)</keycap>,
+<keycap>o</keycap>, and <keycap>f</keycap> keys all together. After
+a few seconds you will be presented with the Open Firmware prompt.
+At the prompt, type
+
+<informalexample><screen>
+0 &gt; 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.
+
+</para>
+   </sect3>
+  </sect2>
+
+  <sect2 arch="powerpc" id="usb-boot">
+  <title>Booting from USB memory stick</title>
+<para>
+
+Currently, NewWorld PowerMac systems are known to support USB booting.
+
+</para>
+
+<para>
+
+Make sure you have prepared everything from <xref
+linkend="boot-usb-files"/>. To boot a Macintosh system from a USB stick,
+you will need to use the Open Firmware prompt, since Open Firmware does
+not search USB storage devices by default.
+<!-- TODO: although it could be made to; watch this space -->
+To get to the prompt, hold down
+<keycombo><keycap>Command</keycap> <keycap>Option</keycap>
+<keycap>o</keycap> <keycap>f</keycap></keycombo> all together while
+booting (see <xref linkend="invoking-openfirmware"/>).
+
+</para><para>
+
+You will need to work out where the USB storage device appears in the
+device tree, since at the moment <command>ofpath</command> cannot work
+that out automatically. Type <userinput>dev / ls</userinput> and
+<userinput>devalias</userinput> at the Open Firmware prompt to get a
+list of all known devices and device aliases. On the author's system
+with various types of USB stick, paths such as
+<filename>usb0/disk</filename>, <filename>usb0/hub/disk</filename>,
+<filename>/pci@f2000000/usb@1b,1/disk@1</filename>, and
+<filename>/pci@f2000000/usb@1b,1/hub@1/disk@1</filename> work.
+
+</para><para>
+
+Having worked out the device path, use a command like this to boot the
+installer:
+
+<informalexample><screen>
+boot <replaceable>usb0/disk</replaceable>:<replaceable>2</replaceable>,\\:tbxi
+</screen></informalexample>
+
+The <replaceable>2</replaceable> matches the Apple_HFS or
+Apple_Bootstrap partition onto which you copied the boot image earlier,
+and the <userinput>,\\:tbxi</userinput> part instructs Open Firmware to
+boot from the file with an HFS file type of "tbxi" (i.e.
+<command>yaboot</command>) in the directory previously blessed with
+<command>hattrib -b</command>.
+
+</para><para>
+
+The system should now boot up, and you should be presented with the
+<prompt>boot:</prompt> prompt. Here you can enter optional boot
+arguments, or just hit &enterkey;.
+
+</para><warning><para>
+
+This boot method is new, and may be difficult to get to work on some
+NewWorld systems. If you have problems, please file an installation
+report, as explained in <xref linkend="submit-bug"/>.
+
+</para></warning>
+  </sect2>
+
+  <sect2 arch="powerpc" id="boot-tftp"><title>Booting with TFTP</title>
+
+&boot-installer-intro-net.xml;
+
+<para>
+
+Currently, PReP and New World PowerMac systems support netbooting.
+
+</para><para>
+
+On machines with Open Firmware, such as NewWorld Power Macs, enter the
+boot monitor (see <xref linkend="invoking-openfirmware"/>) and
+use the command <command>boot enet:0</command>.  PReP and CHRP boxes
+may have different ways of addressing the network.  On a PReP machine,
+you should try
+<userinput>boot <replaceable>server_ipaddr</replaceable>,<replaceable>file</replaceable>,<replaceable>client_ipaddr</replaceable></userinput>.
+
+</para>
+  </sect2>
+
+
+  <sect2 arch="powerpc">
+  <title>Booting from Floppies</title>
+<para>
+
+Booting from floppies is supported for &arch-title;, although it is
+generally only applicable for OldWorld systems. NewWorld systems are
+not equipped with floppy drives, and attached USB floppy drives are
+not supported for booting.
+
+</para><para>
+
+You will have already downloaded the floppy images you needed and
+created floppies from the images in <xref linkend="create-floppy"/>.
+
+</para><para>
+
+To boot from the <filename>boot-floppy-hfs.img</filename> floppy,
+place it in floppy drive after shutting the system down, and before
+pressing the power-on button.
+
+</para><note><para>
+For those not familiar with Macintosh
+floppy operations: a floppy placed in the machine prior to boot will
+be the first priority for the system to boot from. A floppy without a
+valid boot system will be ejected, and the machine will then check for
+bootable hard disk partitions.
+
+</para></note><para>
+
+After booting, the <filename>root.bin</filename> floppy is
+requested. Insert the root floppy and press &enterkey;. The installer
+program is automatically launched after the root system has been
+loaded into memory.
+
+</para>
+  </sect2>
+
+
+  <sect2 arch="powerpc"><title>PowerPC Boot Parameters</title>
+<para>
+
+Many older Apple monitors used a 640x480 67Hz mode. If your video
+appears skewed on an older Apple monitor, try appending the boot
+argument <userinput>video=atyfb:vmode:6</userinput> , which will
+select that mode for most Mach64 and Rage video hardware. For Rage 128
+hardware, this changes to
+<userinput>video=aty128fb:vmode:6</userinput> .
+
+</para>
+  </sect2>