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(itstool) path: row/entry
Context English State
<literal>c</literal>
Normally the same size as the enclosing slice. This allows utilities that need to work on the entire slice, such as a bad block scanner, to work on the <literal>c</literal> partition. A file system would not normally be created on this partition.
<literal>d</literal>
Partition <literal>d</literal> used to have a special meaning associated with it, although that is now gone and <literal>d</literal> may work as any normal partition.
Disks in FreeBSD are divided into slices, referred to in <trademark class="registered">Windows</trademark> as partitions, which are numbered from 1 to 4. These are then divided into partitions, which contain file systems, and are labeled using letters.
<primary>slices</primary>
<primary>partitions</primary>
<primary>dangerously dedicated</primary>
Slice numbers follow the device name, prefixed with an <literal>s</literal>, starting at 1. So <quote>da0<emphasis>s1</emphasis></quote> is the first slice on the first SCSI drive. There can only be four physical slices on a disk, but there can be logical slices inside physical slices of the appropriate type. These extended slices are numbered starting at 5, so <quote>ada0<emphasis>s5</emphasis></quote> is the first extended slice on the first SATA disk. These devices are used by file systems that expect to occupy a slice.
Slices, <quote>dangerously dedicated</quote> physical drives, and other drives contain <firstterm>partitions</firstterm>, which are represented as letters from <literal>a</literal> to <literal>h</literal>. This letter is appended to the device name, so <quote>da0<emphasis>a</emphasis></quote> is the <literal>a</literal> partition on the first <literal>da</literal> drive, which is <quote>dangerously dedicated</quote>. <quote>ada1s3<emphasis>e</emphasis></quote> is the fifth partition in the third slice of the second SATA disk drive.
Finally, each disk on the system is identified. A disk name starts with a code that indicates the type of disk, and then a number, indicating which disk it is. Unlike slices, disk numbering starts at 0. Common codes are listed in <xref linkend="disks-naming"/>.
When referring to a partition, include the disk name, <literal>s</literal>, the slice number, and then the partition letter. Examples are shown in <xref linkend="basics-disk-slice-part"/>.
<xref linkend="basics-concept-disk-model"/> shows a conceptual model of a disk layout.
When installing FreeBSD, configure the disk slices, create partitions within the slice to be used for FreeBSD, create a file system or swap space in each partition, and decide where each file system will be mounted.
Disk Device Names
Drive Type
Drive Device Name
<acronym>SATA</acronym> and <acronym>IDE</acronym> hard drives
<literal>ada</literal> or <literal>ad</literal>
<acronym>SCSI</acronym> hard drives and <acronym>USB</acronym> storage devices
<literal>da</literal>
<acronym>SATA</acronym> and <acronym>IDE</acronym> <acronym>CD-ROM</acronym> drives
<literal>cd</literal> or <literal>acd</literal>
<acronym>SCSI</acronym> <acronym>CD-ROM</acronym> drives
<literal>cd</literal>
Floppy drives
<literal>fd</literal>
Assorted non-standard <acronym>CD-ROM</acronym> drives
<literal>mcd</literal> for Mitsumi <acronym>CD-ROM</acronym> and <literal>scd</literal> for Sony <acronym>CD-ROM</acronym> devices
<acronym>SCSI</acronym> tape drives
<literal>sa</literal>

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Source information

Source string comment
(itstool) path: row/entry
Flags
read-only
Source string location
book.translate.xml:7968
String age
a year ago
Source string age
a year ago
Translation file
books/handbook.pot, string 1284