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<sect1 condition="bootable-disk" id="boot-drive-files">
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<title>Preparing Files for Hard Disk Booting</title>
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<para>
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The installer may be booted using boot files placed on an
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existing hard drive partition, either launched from another operating
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system or by invoking a boot loader directly from the BIOS.
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</para><para>
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A full, "pure network" installation can be achieved using this
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technique. This avoids all hassles of removable media, like finding
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and burning CD images or struggling with too numerous and
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unreliable floppy disks.
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</para><para arch="i386">
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The installer cannot boot from files on an NTFS file system.
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</para><para arch="powerpc">
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The installer cannot boot from files on an HFS+ file system. MacOS
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System 8.1 and above may use HFS+ file systems; NewWorld PowerMacs all
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use HFS+. To determine whether your existing file system is HFS+,
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select <userinput>Get Info</userinput> for the volume in question. HFS
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file systems appear as <userinput>Mac OS Standard</userinput>, while
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HFS+ file systems say <userinput>Mac OS Extended</userinput>. You must
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have an HFS partition in order to exchange files between MacOS and
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Linux, in particular the installation files you download.
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</para><para arch="powerpc">
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Different programs are used for hard disk installation system booting,
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depending on whether the system is a ``NewWorld'' or an ``OldWorld''
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model.
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</para>
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<sect2 arch="i386" id="files-lilo">
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<title>Hard disk installer booting using <command>LILO</command> or
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<command>GRUB</command></title>
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<para>
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This section explains how to add to or even replace an existing linux
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installation using either <command>LILO</command> or
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<command>GRUB</command>.
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</para><para>
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At boot time, both bootloaders support loading in memory not
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only the kernel, but also a disk image. This RAM disk can be used as
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the root file-system by the kernel.
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</para><para>
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Copy the following files from the Debian archives to a
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convenient location on your hard drive, for instance to
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<filename>/boot/newinstall/</filename>.
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<itemizedlist>
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<listitem><para>
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<filename>vmlinuz</filename> (kernel binary)
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</para></listitem>
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<listitem><para>
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<filename>initrd.gz</filename> (ramdisk image)
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</para></listitem>
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</itemizedlist>
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</para><para>
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Finally, to configure the bootloader proceed to
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<xref linkend="boot-initrd"/>.
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</para>
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</sect2>
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<sect2 arch="powerpc" id="files-oldworld">
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<title>Hard Disk Installer Booting for OldWorld Macs</title>
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<para>
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The <filename>boot-floppy-hfs</filename> floppy uses
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<application>miBoot</application> to launch Linux installation, but
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<application>miBoot</application> cannot easily be used for hard disk
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booting. <application>BootX</application>, launched from MacOS,
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supports booting from files placed on the hard
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disk. <application>BootX</application> can also be used to dual-boot
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MacOS and Linux after your Debian installation is complete. For the
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Performa 6360, it appears that <command>quik</command> cannot make the
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hard disk bootable. So <application>BootX</application> is required
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on that model.
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</para><para>
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Download and unstuff the <application>BootX</application>
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distribution, available from <ulink url="&url-powerpc-bootx;"></ulink>,
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or in the
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<filename>dists/woody/main/disks-powerpc/current/powermac</filename>
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directory on Debian http/ftp mirrors and official Debian CDs. Use
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<application>Stuffit Expander</application> to extract it from its
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archive. Within the package, there is an empty folder called
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<filename>Linux Kernels</filename>. Download
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<filename>linux.bin</filename> and
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<filename>ramdisk.image.gz</filename> from the
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<filename>disks-powerpc/current/powermac</filename> folder, and place
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them in the <filename>Linux Kernels</filename> folder. Then place the
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<filename>Linux Kernels</filename> folder in the active System Folder.
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</para>
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</sect2>
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<sect2 arch="powerpc" id="files-newworld">
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<title>Hard Disk Installer Booting for NewWorld Macs</title>
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<para>
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NewWorld PowerMacs support booting from a network or an ISO9660
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CD-ROM, as well as loading ELF binaries directly from the hard
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disk. These machines will boot Linux directly via
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<command>yaboot</command>, which supports loading a kernel and RAMdisk
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directly from an ext2 partition, as well as dual-booting with
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MacOS. Hard disk booting of the installer is particularly appropriate
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for newer machines without floppy drives. <command>BootX</command> is
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not supported and must not be used on NewWorld PowerMacs.
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</para><para>
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<emphasis>Copy</emphasis> (not move) the following four files which
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you downloaded earlier from the Debian archives, onto the root level
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of your hard drive (this can be accomplished by
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<keycap>option</keycap>-dragging each file to the hard drive icon).
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<itemizedlist>
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<listitem><para>
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<filename>linux.bin</filename>
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</para></listitem>
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<listitem><para>
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<filename>root.bin</filename> (from inside the images-1.44 folder)
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</para></listitem>
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<listitem><para>
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<filename>yaboot</filename>
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</para></listitem>
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<listitem><para>
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<filename>yaboot.conf</filename>
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</para></listitem>
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</itemizedlist>
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</para><para>
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Make a note of the partition number of the MacOS partition where you
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place these files. If you have the MacOS <command>pdisk</command>
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program, you can use the L command to check for the partition
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number. You will need this partition number for the command you type
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at the Open Firmware prompt when you boot the installer.
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</para><para>
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To boot the installer, proceed to <xref linkend="boot-newworld"/>.
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</para>
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</sect2>
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</sect1>
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