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+.\"	$OpenBSD$
+.\"
+.\" Copyright (c) 2025 Tobias Heider <tobhe@openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: November 21 2025 $
+.Dt DISKINFO 1
+.Os
+.Sh NAME
+.Nm diskinfo
+.Nd display disk information
+.Sh SYNOPSIS
+.Nm diskinfo
+.Op Fl h
+.Nm diskinfo
+.Op Fl h
+.Ar disk
+.Sh DESCRIPTION
+The
+.Nm
+utility displays information about the specified
+.Ar disk .
+If no operands are specified,
+information for all available disks is displayed.
+By default, size values are displayed as 512-byte block counts.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl h
+"Human-readable" output.
+Use unit suffixes: Byte, Kilobyte, Megabyte,
+Gigabyte, Terabyte, Petabyte, Exabyte in order to reduce the number of
+digits to four or less.
+.Sh EXAMPLES
+Output information for all available disks:
+.Pp
+.Bd -literal
+# diskinfo
+DISK                        TOTAL         FSTYPE        MOUNT
+sd0:e0da951523552d12 [QEMU QEMU HARDDISK]
+|-- sd0a	      976240591	   RAID
+|-- sd0c	      976773168	 unused
+`-- sd0i	         532480	  MSDOS
+
+sd1:61992282be82044b [QEMU QEMU CRYPTO]
+|-- sd1a	        2097152	 4.2BSD	/
+|-- sd1b	       67461472	   swap
+|-- sd1c	      976240063	 unused
+`-- sd1i	         532480	  MSDOS
+.ed
+.Sh SEE ALSO
+.Xr disklabel 5 ,
+.Xr mount 8 ,
+.Xr getmntinfo 3 ,
+.Xr sd 4 ,
+.Xr fstab 5 ,