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+  <sect2 arch="alpha"><title>Partitioning in Tru64 UNIX</title>
+<para>
+
+Tru64 UNIX, formerly known as Digital UNIX, which is in turn formerly
+known as OSF/1, uses the partitioning scheme similar to the BSD <quote>disk
+label</quote>, which allows for up to eight partitions per disk drive.  The
+partitions are numbered <quote>1</quote> through to <quote>8</quote> in
+Linux and <quote>lettered</quote> <quote>a</quote> through to
+<quote>h</quote> in UNIX.  Linux kernels 2.2 and higher always correspond
+<quote>1</quote> to <quote>a</quote>, <quote>2</quote> to <quote>b</quote>
+and so on.  For example, <filename>rz0e</filename> in Tru64 UNIX would most
+likely be called <filename>sda5</filename> in Linux.
+
+</para><para>
+
+Partitions in a Tru64 disk label may overlap.  Moreover, if this disk
+will be used from Tru64, the <quote>c</quote> partition is required to span
+the entire disk (thus overlapping all other non-empty partitions).  Under
+Linux this makes <filename>sda3</filename> identical to
+<filename>sda</filename> (<filename>sdb3</filename> to
+<filename>sdb</filename>, if present, and so on).  However, the partman
+partitioning tool used by &d-i; cannot handle overlapping partitions at
+present.  As a result, it is currently not recommended to share disks
+between Tru64 and Debian.  Partitions on Tru64 disks can be mounted
+under Debian after installation has been completed.
+
+</para><para>
+
+Another conventional requirement is for the <quote>a</quote> partition to
+start from the beginning of the disk, so that it always includes the boot
+block with the disk label. If you intend to boot Debian from that disk, you
+need to size it at least 2MB to fit aboot and perhaps a kernel.
+Note that this partition is only required for compatibility; you must
+not put a file system onto it, or you'll destroy data.
+
+</para><para>
+
+It is possible, and indeed quite reasonable, to share a swap partition
+between UNIX and Linux.  In this case it will be needed to do a
+<command>mkswap</command> on that partition every time the system is rebooted
+from UNIX into Linux, as UNIX will damage the swap signature.  You may
+want to run <command>mkswap</command> from the Linux start-up scripts before
+adding swap space with <command>swapon -a</command>.
+
+</para><para>
+
+If you want to mount UNIX partitions under Linux, note that Digital UNIX
+can use two different file system types, UFS and AdvFS, of which Linux
+only understands the former.
+
+</para>
+  </sect2>
+
+  <sect2 arch="alpha"><title>Partitioning in Windows NT</title>
+
+<para>
+
+Windows NT uses the PC-style partition table.  If you are manipulating
+existing FAT or NTFS partitions, it is recommended that you use the
+native Windows NT tools (or, more conveniently, you can also
+repartition your disk from the AlphaBIOS setup menu).  Otherwise, it
+is not really necessary to partition from Windows; the Linux
+partitioning tools will generally do a better job.  Note that when you
+run NT, the Disk Administrator may offer you to write a <quote>harmless
+signature</quote> on non-Windows disks if you have any.
+<emphasis>Never</emphasis> let it do that, as this signature will destroy
+the partition information.
+
+</para><para>
+
+If you plan to boot Linux from an ARC/AlphaBIOS/ARCSBIOS console, you
+will need a (small) FAT partition for MILO.  5 MB is quite
+sufficient.  If Windows NT is installed, its 6 MB bootstrap partition
+can be employed for this purpose.  Debian &releasename; does not support
+installing MILO.  If you already have MILO installed on your system, or
+install MILO from other media, Debian can still be booted from ARC.
+
+</para>
+  </sect2>