hd — MFM/IDE hard disk devices
The hd* devices are block
devices to access MFM/IDE hard disk drives in raw mode. The
master drive on the primary IDE controller (major device
number 3) is hda; the slave
drive is hdb. The master drive
of the second controller (major device number 22) is
hdc and the slave is
hdd.
General IDE block device names have the form hdX, or
hdXP, where X
is a letter denoting the physical drive, and P is a number denoting the partition on
that physical drive. The first form, hdX, is used
to address the whole drive. Partition numbers are assigned in
the order the partitions are discovered, and only nonempty,
nonextended partitions get a number. However, partition
numbers 1-4 are given to the four partitions described in the
MBR (the "primary" partitions), regardless of whether they
are unused or extended. Thus, the first logical partition
will be hdX5. Both DOS-type partitioning
and BSD-disklabel partitioning are supported. You can have at
most 63 partitions on an IDE disk.
For example, /dev/hda refers
to all of the first IDE drive in the system; and /dev/hdb3 refers to the third DOS "primary"
partition on the second one.
They are typically created by:
mknod −m 660 /dev/hda b 3 0
mknod −m 660 /dev/hda1 b 3 1
mknod −m 660 /dev/hda2 b 3 2
...
mknod −m 660 /dev/hda8 b 3 8
mknod −m 660 /dev/hdb b 3 64
mknod −m 660 /dev/hdb1 b 3 65
mknod −m 660 /dev/hdb2 b 3 66
...
mknod −m 660 /dev/hdb8 b 3 72
chown root:disk /dev/hd*
This page is part of release 4.07 of the Linux man-pages project. A
description of the project, information about reporting bugs,
and the latest version of this page, can be found at
https://www.kernel.org/doc/man−pages/.
|
Copyright (c) 1993 Michael Haardt (michaelmoria.de), Fri Apr 2 11:32:09 MET DST 1993 %%%LICENSE_START(GPLv2+_DOC_FULL) This is free documentation; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The GNU General Public License's references to "object code" and "executables" are to be interpreted as the output of any document formatting or typesetting system, including intermediate and printed output. This manual is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this manual; if not, see <http://www.gnu.org/licenses/>. %%%LICENSE_END Modified Sat Jul 24 16:56:20 1993 by Rik Faith <faithcs.unc.edu> Modified Mon Oct 21 21:38:51 1996 by Eric S. Raymond <esrthyrsus.com> (and some more by aeb) |