Often, the partition number,
.IR p ,
will be left off when the device corresponds to the whole drive.
-.PP
+.P
SCSI disks have a major device number of 8, and a minor device number of
the form (16 *
.IR drive_number ") + " partition_number ,
partitions 1\[en]4 are the DOS "primary" partitions
.IP \[bu]
partitions 5\[en]8 are the DOS "extended" (or "logical") partitions
-.PP
+.P
For example,
.I /dev/sda
will have major 8, minor 0, and will refer to all of the first SCSI drive
.I /dev/sdb3
will have major 8, minor 19, and will refer to the third DOS "primary"
partition on the second SCSI drive in the system.
-.PP
+.P
At this time, only block devices are provided.
Raw devices have not yet been implemented.
.SH DESCRIPTION
.TP
.B HDIO_GETGEO
Returns the BIOS disk parameters in the following structure:
-.PP
+.P
.in +4n
.EX
struct hd_geometry {