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<sect1 id="pre-install-bios-setup">
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<title>Pre-Installation Hardware and Operating System Setup</title>
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<para>
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This section will walk you through pre-installation hardware setup, if
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any, that you will need to do prior to installing &debian;. Generally,
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this involves checking and possibly changing firmware settings for
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your system. The <quote>firmware</quote> is the core software used by the
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hardware; it is most critically invoked during the bootstrap process
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(after power-up). Known hardware issues affecting the reliability of
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&debian-gnu; on your system are also highlighted.
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</para>
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&bios-setup-i386.xml;
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&bios-setup-powerpc.xml;
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&bios-setup-sparc.xml;
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&bios-setup-s390.xml;
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<sect2 arch="x86;powerpc" id="hardware-issues">
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<title>Hardware Issues to Watch Out For</title>
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<formalpara arch="x86">
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<title>USB BIOS support and keyboards</title>
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<para>
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If you have no AT-style keyboard and only a USB model, you may need
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to enable legacy AT keyboard emulation in your BIOS setup. Only do this if
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the installation system fails to use your keyboard in USB mode. Conversely,
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for some systems (especially laptops) you may need to disable legacy USB
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support if your keyboard does not respond.
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Consult your main board manual and look in the BIOS for <quote>Legacy
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keyboard emulation</quote> or <quote>USB keyboard support</quote> options.
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</para>
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</formalpara>
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<formalpara arch="powerpc">
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<title>Display-visibility on OldWorld Powermacs</title>
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<para>
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Some OldWorld Powermacs, most notably those with the <quote>control</quote>
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display driver, may not reliably produce a colormap under Linux when the
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display is configured for more than 256 colors. If you are experiencing such
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issues with your display after rebooting (you can sometimes see data on
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the monitor, but on other occasions cannot see anything) or, if the screen
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turns black after booting the installer instead of showing you the user
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interface, try changing your display settings under MacOS to use 256
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colors instead of <quote>thousands</quote> or <quote>millions</quote>.
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</para>
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</formalpara>
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</sect2>
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</sect1>
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