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diff --git a/man4/sd.4 b/man4/sd.4 deleted file mode 100644 index a2bf814..0000000 --- a/man4/sd.4 +++ /dev/null @@ -1,117 +0,0 @@ -.\" sd.4 -.\" Copyright 1992 Rickard E. Faith (faith@cs.unc.edu) -.\" -.\" SPDX-License-Identifier: Linux-man-pages-copyleft -.\" -.TH sd 4 2023-10-31 "Linux man-pages 6.7" -.SH NAME -sd \- driver for SCSI disk drives -.SH SYNOPSIS -.nf -.BR "#include <linux/hdreg.h> " "/* for HDIO_GETGEO */" -.BR "#include <linux/fs.h> " "/* for BLKGETSIZE and BLKRRPART */" -.fi -.SH CONFIGURATION -The block device name has the following form: -.BI sd lp, -where -.I l -is a letter denoting the physical drive, and -.I p -is a number denoting the partition on that physical drive. -Often, the partition number, -.IR p , -will be left off when the device corresponds to the whole drive. -.P -SCSI disks have a major device number of 8, and a minor device number of -the form (16 * -.IR drive_number ") + " partition_number , -where -.I drive_number -is the number of the physical drive in order of detection, and -.I partition_number -is as follows: -.IP \[bu] 3 -partition 0 is the whole drive -.IP \[bu] -partitions 1\[en]4 are the DOS "primary" partitions -.IP \[bu] -partitions 5\[en]8 are the DOS "extended" (or "logical") partitions -.P -For example, -.I /dev/sda -will have major 8, minor 0, and will refer to all of the first SCSI drive -in the system; and -.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. -.P -At this time, only block devices are provided. -Raw devices have not yet been implemented. -.SH DESCRIPTION -The following -.IR ioctl s -are provided: -.TP -.B HDIO_GETGEO -Returns the BIOS disk parameters in the following structure: -.P -.in +4n -.EX -struct hd_geometry { - unsigned char heads; - unsigned char sectors; - unsigned short cylinders; - unsigned long start; -}; -.EE -.in -.IP -A pointer to this structure is passed as the -.BR ioctl (2) -parameter. -.IP -The information returned in the parameter is the disk geometry of the drive -.I "as understood by DOS!" -This geometry is -.I not -the physical geometry of the drive. -It is used when constructing the -drive's partition table, however, and is needed for convenient operation -of -.BR fdisk (1), -.BR efdisk (1), -and -.BR lilo (1). -If the geometry information is not available, zero will be returned for all -of the parameters. -.TP -.B BLKGETSIZE -Returns the device size in sectors. -The -.BR ioctl (2) -parameter should be a pointer to a -.IR long . -.TP -.B BLKRRPART -Forces a reread of the SCSI disk partition tables. -No parameter is needed. -.IP -The SCSI -.BR ioctl (2) -operations are also supported. -If the -.BR ioctl (2) -parameter is required, and it is NULL, then -.BR ioctl (2) -fails with the error -.BR EINVAL . -.SH FILES -.TP -.I /dev/sd[a\-h] -the whole device -.TP -.I /dev/sd[a\-h][0\-8] -individual block partitions -.\".SH SEE ALSO -.\".BR scsi (4) |