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<sect2 arch="alpha"><title>Partitioning for &arch-title;</title>
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<para>
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If you have chosen to boot from the SRM console, you must use
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<command>fdisk</command> to partition your disk, as it is the only
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partitioning program that can manipulate the BSD disk labels required
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by <command>aboot</command> (remember, the SRM boot block is
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incompatible with MS-DOS partition tables - see
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<xref linkend="alpha-firmware"/>).
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<command>debian-installer</command> will run <command>fdisk</command>
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by default if you have not booted from <command>MILO</command>.
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</para><para>
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If the disk that you have selected for partitioning already contains a
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BSD disk label, <command>fdisk</command> will default to BSD disk
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label mode. Otherwise, you must use the `b' command to enter disk
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label mode.
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</para><para>
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Unless you wish to use the disk you are partitioning from Tru64 Unix
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or one of the free 4.4BSD-Lite derived operating systems (FreeBSD,
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OpenBSD, or NetBSD), it is suggested that you do
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<emphasis>not</emphasis> make the third partition contain the whole
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disk. This is not required by <command>aboot</command>, and in fact,
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it may lead to confusion since the <command>swriteboot</command>
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utility used to install <command>aboot</command> in the boot sector
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will complain about a partition overlapping with the boot block.
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</para><para>
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Also, because <command>aboot</command> is written to the first few
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sectors of the disk (currently it occupies about 70 kilobytes, or 150
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sectors), you <emphasis>must</emphasis> leave enough empty space at
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the beginning of the disk for it. In the past, it was suggested that
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you make a small partition at the beginning of the disk, to be left
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unformatted. For the same reason mentioned above, we now suggest that
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you do not do this on disks that will only be used by GNU/Linux.
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</para><para>
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For ARC installations, you should make a small FAT partition at the
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beginning of the disk to contain <command>MILO</command> and
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<command>linload.exe</command> - 5 megabytes should be sufficient, see
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<xref linkend="non-debian-partitioning"/>. Unfortunately, making FAT
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file systems from the menu is not yet supported, so you'll have to do
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it manually from the shell using <command>mkdosfs</command> before
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attempting to install the boot loader.
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</para>
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</sect2>
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