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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.Dd May 12, 2026 .Dd June 5, 2026
.Dt GPART 8 .Dt GPART 8
.Os .Os
.Sh NAME .Sh NAME
.Nm gpart .Nm gpart
.Nd "control utility for the disk partitioning GEOM class" .Nd "control utility for the disk partitioning GEOM class"
.Sh SYNOPSIS .Sh SYNOPSIS
.\" ==== ADD ==== .\" ==== ADD ====
.Nm .Nm
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.Cm GEOM_PART_EBR .Cm GEOM_PART_EBR
option adds support for the Extended Boot Record (EBR), option adds support for the Extended Boot Record (EBR),
which is used to define a logical partition. which is used to define a logical partition.
The The
.Cm GEOM_PART_EBR_COMPAT .Cm GEOM_PART_EBR_COMPAT
option enables backward compatibility for partition names option enables backward compatibility for partition names
in the EBR scheme. in the EBR scheme.
It also prevents any type of actions on such partitions. It also prevents any type of actions on such partitions.
.It Cm SGI
SGI disklabel, used on Silicon Graphics workstations and servers running IRIX.
The label occupies the first sector of the disk.
Requires the
.Cd GEOM_PART_SGI
kernel option.
.El .El
.Pp .Pp
See See
.Xr glabel 8 .Xr glabel 8
for additional information on labelization of devices and partitions. for additional information on labelization of devices and partitions.
.Sh PARTITION TYPES .Sh PARTITION TYPES
Partition types are identified on disk by particular strings or magic Partition types are identified on disk by particular strings or magic
values. values.
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.Bx .Bx
disklabel. disklabel.
This is a legacy partition type and should not be used for the APM This is a legacy partition type and should not be used for the APM
or GPT schemes. or GPT schemes.
The scheme-specific types are The scheme-specific types are
.Qq Li "!165" .Qq Li "!165"
for MBR, for MBR,
.Qq Li "!FreeBSD" .Qq Li "!FreeBSD"
for APM, and for APM,
.Qq Li "!4"
for SGI, and
.Qq Li "!516e7cb4-6ecf-11d6-8ff8-00022d09712b" .Qq Li "!516e7cb4-6ecf-11d6-8ff8-00022d09712b"
for GPT. for GPT.
.It Cm freebsd-boot .It Cm freebsd-boot
A A
.Fx .Fx
partition dedicated to bootstrap code. partition dedicated to bootstrap code.
The scheme-specific type is The scheme-specific type is
.Qq Li "!83bd6b9d-7f41-11dc-be0b-001560b84f0f" .Qq Li "!83bd6b9d-7f41-11dc-be0b-001560b84f0f"
for GPT. for GPT.
.It Cm freebsd-swap .It Cm freebsd-swap
A A
.Fx .Fx
partition dedicated to swap space. partition dedicated to swap space.
The scheme-specific types are The scheme-specific types are
.Qq Li "!FreeBSD-swap" .Qq Li "!FreeBSD-swap"
for APM, and for APM,
.Qq Li "!3"
for SGI, and
.Qq Li "!516e7cb5-6ecf-11d6-8ff8-00022d09712b" .Qq Li "!516e7cb5-6ecf-11d6-8ff8-00022d09712b"
for GPT. for GPT.
.It Cm freebsd-ufs .It Cm freebsd-ufs
A A
.Fx .Fx
partition that contains a UFS or UFS2 filesystem. partition that contains a UFS or UFS2 filesystem.
The scheme-specific types are The scheme-specific types are
.Qq Li "!FreeBSD-UFS" .Qq Li "!FreeBSD-UFS"
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.It Cm prep-boot .It Cm prep-boot
The system partition dedicated to storing boot loaders on some PowerPC systems, The system partition dedicated to storing boot loaders on some PowerPC systems,
notably those made by IBM. notably those made by IBM.
The scheme-specific types are The scheme-specific types are
.Qq Li "!65" .Qq Li "!65"
for MBR and for MBR and
.Qq Li "!9e1a2d38-c612-4316-aa26-8b49521e5a8b" .Qq Li "!9e1a2d38-c612-4316-aa26-8b49521e5a8b"
for GPT. for GPT.
.It Cm sgi-bsd
A partition containing a BSD disklabel, for use on SGI systems.
The scheme-specific type is
.Qq Li "!4" .
.It Cm sgi-efs
An SGI Extent File System (EFS) partition.
The scheme-specific type is
.Qq Li "!7" .
.It Cm sgi-swap
An SGI swap partition.
The scheme-specific type is
.Qq Li "!3" .
.It Cm sgi-volhdr
An SGI volume header partition, typically used at the start of the disk
to hold standalone programs such as the system sash and fx utilities.
The scheme-specific type is
.Qq Li "!0" .
.It Cm sgi-volume
An SGI partition spanning the entire disk.
IRIX conventionally places this on partition 11.
The scheme-specific type is
.Qq Li "!6" .
.It Cm sgi-xfs
An SGI XFS filesystem partition.
The scheme-specific type is
.Qq Li "!a" .
.It Cm solaris-boot .It Cm solaris-boot
A illumos/Solaris partition dedicated to boot loader. A illumos/Solaris partition dedicated to boot loader.
The scheme-specific type is The scheme-specific type is
.Qq Li "!6a82cb45-1dd2-11b2-99a6-080020736631" .Qq Li "!6a82cb45-1dd2-11b2-99a6-080020736631"
for GPT. for GPT.
.It Cm solaris-root .It Cm solaris-root
A illumos/Solaris partition dedicated to root filesystem. A illumos/Solaris partition dedicated to root filesystem.
The scheme-specific type is The scheme-specific type is
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