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<sect3 id="partman-fs">
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<title>Supported partitioning options</title>
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The partitioner used in &d-i; is fairly versatile. It allows to create
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many different partitioning schemes, using various partition tables,
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file systems and advanced block devices.
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Exactly which options are available depends mainly on the architecture,
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but also on other factors. For example, on systems with limited internal
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memory some options may not be available.
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Defaults may vary as well. The type of partition table used by default
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can for example be different for large capacity hard disks than for
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Some options can only be changed when installing at medium or low debconf
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priority; at higher priorities sensible defaults will be used.
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The installer supports various forms of advanced partitioning and use of
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storage devices, which in many cases can be used in combination.
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<emphasis>Logical Volume Management (LVM)</emphasis>
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<listitem arch="not-s390"><para>
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<emphasis>Software RAID</emphasis>
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Supported are RAID levels 0, 1, 4, 5, 6 and 10.
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<emphasis>Encryption</emphasis>
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<listitem arch="x86"><para>
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<emphasis>Serial ATA RAID</emphasis> (using <classname>dmraid</classname>)
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Also called <quote>fake RAID</quote> or <quote>BIOS RAID</quote>.
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Support for Serial ATA RAID is currently only available if enabled when
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the installer is booted. Further information is available on
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<ulink url="&url-d-i-sataraid;">our Wiki</ulink>.
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<emphasis>Multipath</emphasis> (experimental)
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See <ulink url="&url-d-i-multipath;">our Wiki</ulink> for information.
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Support for multipath is currently only available if enabled when the
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The following file systems are supported.
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<phrase arch="arm;mipsel"><emphasis>ext2r0</emphasis>,</phrase>
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<emphasis>ext2</emphasis>,
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<emphasis>ext3</emphasis>,
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<emphasis>ext4</emphasis>
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The default file system selected in most cases is ext3; for
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<filename>/boot</filename> partitions ext2 will be selected by default
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when guided partitioning is used.
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<emphasis>jfs</emphasis> (not available on all architectures)
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<emphasis>xfs</emphasis> (not available on all architectures)
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<emphasis>reiserfs</emphasis> (optional; not available on all architectures)
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Support for the Reiser file system is no longer available by default.
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When the installer is running at medium or low debconf priority it can
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be enabled by selecting the <classname>partman-reiserfs</classname>
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component. Only version 3 of the file system is supported.
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<listitem arch="arm"><para>
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<emphasis>jffs2</emphasis>
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Used on some systems to read flash memory. It is not possible to create
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new jffs2 partitions.
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<listitem arch="x86"><para>
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<emphasis>qnx4</emphasis>
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Existing partitions will be recognized and it is possible to assign
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mount points for them. It is not possible to create new qnx4 partitions.
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<emphasis>FAT16</emphasis>, <emphasis>FAT32</emphasis>
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<listitem arch="x86;ia64"><para>
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<emphasis>NTFS</emphasis> (read-only)
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Existing NTFS partitions can be resized and it is possible to assign
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mount points for them. It is not possible to create new NTFS partitions.
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142
<sect3 id="partman-auto">
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143
<title>Guided Partitioning</title>