Originální popis anglicky:
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
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
non-empty, non-extended 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*
/dev/hd*
chown(1),
mknod(1),
sd(4),
mount(8)
