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<!-- retain these comments for translator revision tracking -->
<!-- $Id$ -->
<sect1 condition="bootable-disk" id="boot-drive-files">
<title>Preparing Files for Hard Disk Booting</title>
<para>
The installer may be booted using boot files placed on an
existing hard drive partition, either launched from another operating
system or by invoking a boot loader directly from the BIOS.
On modern UEFI systems, the kernel may be booted directly from the UEFI
partition without the need of a boot loader.
</para><para>
A full, <quote>pure network</quote> installation can be achieved using this
technique. This avoids all hassles of removable media, like finding
and burning CD/DVD images.
</para><para arch="powerpc">
The installer cannot boot from files on an HFS+ file system. MacOS
System 8.1 and above may use HFS+ file systems; NewWorld PowerMacs all
use HFS+. To determine whether your existing file system is HFS+,
select <userinput>Get Info</userinput> for the volume in question. HFS
file systems appear as <userinput>Mac OS Standard</userinput>, while
HFS+ file systems say <userinput>Mac OS Extended</userinput>. You must
have an HFS partition in order to exchange files between MacOS and
Linux, in particular the installation files you download.
</para><para arch="powerpc">
Different programs are used for hard disk installation system booting,
depending on whether the system is a <quote>NewWorld</quote> or an
<quote>OldWorld</quote> model.
</para>
<sect2 arch="x86" id="files-grub">
<title>Hard disk installer booting from Linux using
<command>GRUB</command></title>
<para>
This section explains how to add to or even replace an existing linux
installation using
<command>GRUB</command>.
</para><para>
At boot time, <command>GRUB</command> supports loading in memory not
only the kernel, but also a disk image. This RAM disk can be used as
the root file-system by the kernel.
</para><para>
Copy the following files from the &debian; archives to a
convenient location on your hard drive, for instance to
<filename>/boot/newinstall/</filename>.
<itemizedlist>
<listitem><para>
<filename>vmlinuz</filename> (kernel binary)
</para></listitem>
<listitem><para>
<filename>initrd.gz</filename> (ramdisk image)
</para></listitem>
</itemizedlist>
</para><para>
If you intend to use the hard drive only for booting and then
download everything over the network, you should download the
&x86-netboot-initrd; file and its
corresponding kernel &x86-netboot-linux;. This will allow you
to repartition the hard disk from which you boot the installer, although you
should do so with care.
</para>
<para>
Alternatively, if you intend to keep an existing partition on the hard
drive unchanged during the install, you can download the
&x86-hdmedia-initrd; file and its kernel
&x86-hdmedia-vmlinuz;, as well as
copy an installation image to the hard drive (make sure the file is named ending in
<literal>.iso</literal>). The installer can then boot from the hard drive
and install from the installation image, without needing the network.
</para><para>
Finally, to configure the bootloader proceed to
<xref linkend="boot-initrd"/>.
</para>
</sect2>
<sect2 arch="x86" id="files-loadlin">
<title>Hard disk installer booting from DOS using <command>loadlin</command></title>
<para>
This section explains how to prepare your hard drive for booting the installer
from DOS using <command>loadlin</command>.
</para><para>
Copy the following directories from a &debian; installation image to <filename>c:\</filename>.
<itemizedlist>
<listitem><para>
<filename>/&x86-install-dir;</filename> (kernel binary and ramdisk image)
</para></listitem>
<listitem><para>
<filename>/tools</filename> (loadlin tool)
</para></listitem>
</itemizedlist>
</para>
</sect2>
<!--
<sect2 arch="powerpc" id="files-oldworld">
<title>Hard Disk Installer Booting for OldWorld Macs</title>
<para>
The <filename>boot-floppy-hfs</filename> floppy uses
<application>miBoot</application> to launch Linux installation, but
<application>miBoot</application> cannot easily be used for hard disk
booting. <application>BootX</application>, launched from MacOS,
supports booting from files placed on the hard
disk. <application>BootX</application> can also be used to dual-boot
MacOS and Linux after your &debian; installation is complete. For the
Performa 6360, it appears that <command>quik</command> cannot make the
hard disk bootable. So <application>BootX</application> is required
on that model.
</para><para>
Download and unstuff the <application>BootX</application>
distribution, available from <ulink url="&url-powerpc-bootx;"></ulink>,
or in the
<filename>dists/woody/main/disks-powerpc/current/powermac</filename>
directory on &debian; http/ftp mirrors and official &debian; CDs. Use
<application>Stuffit Expander</application> to extract it from its
archive. Within the package, there is an empty folder called
<filename>Linux Kernels</filename>. Download
<filename>linux.bin</filename> and
<filename>ramdisk.image.gz</filename> from the
<filename>disks-powerpc/current/powermac</filename> folder, and place
them in the <filename>Linux Kernels</filename> folder. Then place the
<filename>Linux Kernels</filename> folder in the active System Folder.
</para>
</sect2>
<sect2 arch="powerpc" id="files-newworld">
<title>Hard Disk Installer Booting for NewWorld Macs</title>
<para>
NewWorld PowerMacs support booting from a network or an ISO9660
CD-ROM, as well as loading ELF binaries directly from the hard
disk. These machines will boot Linux directly via
<command>yaboot</command>, which supports loading a kernel and RAMdisk
directly from an ext2 partition, as well as dual-booting with
MacOS. Hard disk booting of the installer is particularly appropriate
for newer machines without floppy drives. <command>BootX</command> is
not supported and must not be used on NewWorld PowerMacs.
</para><para>
<emphasis>Copy</emphasis> (not move) the following four files which
you downloaded earlier from the &debian; archives, onto the root level
of your hard drive (this can be accomplished by
<keycap>option</keycap>-dragging each file to the hard drive icon).
<itemizedlist>
<listitem><para>
<filename>vmlinux</filename>
</para></listitem>
<listitem><para>
<filename>initrd.gz</filename>
</para></listitem>
<listitem><para>
<filename>yaboot</filename>
</para></listitem>
<listitem><para>
<filename>yaboot.conf</filename>
</para></listitem>
</itemizedlist>
</para><para>
Make a note of the partition number of the MacOS partition where you
place these files. If you have the MacOS <command>pdisk</command>
program, you can use the <command>L</command> command to check for the
partition number. You will need this partition number for the command
you type at the Open Firmware prompt when you boot the installer.
</para><para>
To boot the installer, proceed to <xref linkend="boot-newworld"/>.
</para>
</sect2>
-->
</sect1>
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