putdev(1M) putdev(1M)
NAME
putdev - edits device table
SYNOPSIS
putdev -a alias [attribute=value [. . .]]
putdev -m device attribute=value [attribute=value [. . .]]
putdev -d device [attribute [. . .]]
DESCRIPTION
putdev can add a new device to the device table, modify an existing
device description or remove a device entry from the table. The first
synopsis is used to add a device. The second synopsis is used to
modify existing entries by adding or changing attributes. If a speci-
fied attribute is not defined, this option adds that attribute to the
device definition. If it is already defined, it modifies the attribute
definition. The third synopsis is used to delete either an entire
device entry or, if the attribute argument is used, to delete an
attribute assignment for a device.
OPTIONS
-a Adds a device to the device table using the specified attri-
butes. The device must be referenced by its alias.
-m Modifies a device entry in the device table. If an entry
already exists, it adds any specified attributes that are
not defined. It also modifies any attributes which already
have a value with the value specified with this command.
-d Removes a device from the device table, when executed
without the attributes argument. Used with the attribute
argument, it deletes the given attribute specification for
device from the table.
alias Designates the alias of the device to be added.
device Designates the pathname or alias of the device whose attri-
bute is to be added, modified, or removed.
attribute Designates a device attribute to be added or modified. Can
be any of the device attributes described under NOTES except
alias. This prevents an accidental modification or deletion
of a device's alias from the table.
value Designates the value to be assigned to a device's attribute.
NOTES
The following list shows all of the attributes which can be defined
for a device:
alias The unique name by which a device is known. No two
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devices in the database may share the same alias name.
The name is limited in length to 14 characters and
should contain only alphanumeric characters and also
the following special characters if they are escaped
with a backslash: underscore (_), dollar sign ($),
hyphen (-), and period (.).
bdevice The pathname to the block special device node associ-
ated with the device, if any. The associated
major/minor combination should be unique within the
database and should match that associated with the cde-
vice field, if any. (It is the administrator's respon-
sibility to ensure that these major/minor numbers are
unique in the database.)
capacity The capacity of the device or of the typical volume, if
removable.
cdevice The pathname to the character special device node asso-
ciated with the device, if any. The associated
major/minor combination should be unique within the
database and should match that associated with the bde-
vice field, if any. (It is the administrator's respon-
sibility to ensure that these major/minor numbers are
unique in the database.)
cyl Used by the command specified in the mkfscmd attribute.
desc A description of any instance of a volume associated
with this device.
dpartlist The list of disk partitions associated with this
device. Used only if type=disk. The list should contain
device aliases, each of which must have type=dpart.
dparttype The type of disk partition represented by this device.
Used only if type=dpart. It should be either fs (for
filesystem) or dp (for data partition).
erasecmd The command string that, when executed, erases the
device.
fmtcmd The command string that, when executed, formats the
device.
fsname The filesystem name on the file system administered on
this partition, as supplied to the /usr/sbin/labelit
command. This attribute is specified only if type=dpart
and dparttype=fs.
gap Used by the command specified in the mkfscmd attribute.
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mkfscmd The command string that, when executed, places a file
system on a previously formatted device.
mountpt The default mount point to use for the device. Used
only if the device is mountable. For disk partitions
where type=dpart and dparttype=fs, this attribute
should specify the location where the partition is nor-
mally mounted.
nblocks The number of blocks in the filesystem administered on
this partition. Used only if type=dpart and
dparttype=fs.
ninodes The number of inodes in the filesystem administered on
this partition. Used only if type=dpart and
dparttype=fs.
norewind The name of the character special device node that
allows access to the serial device without rewinding
when the device is closed.
pathname Defines the pathname to an i-node describing the device
(used for non-block or character device pathnames, such
as directories).
type A token that represents inherent qualities of the
device. Standard types include: 9-track, disk, direc-
tory, dpart, and qtape.
volname The volume name on the filesystem administered on this
partition, as supplied to the /usr/sbin/labelit com-
mand. Used only if type=dpart and dparttype=fs.
volume A text string used to describe any instance of a volume
associated with this device. This attribute should not
be defined for devices which are not removable.
DIAGNOSTICS
The command will exit with one of the following values:
0 = Successful completion of the task.
1 = Command syntax incorrect, invalid option used, or internal error
occurred.
2 = Device table could not be opened for reading or new device table
could not be created.
3 = If executed with the -a option, indicates that an entry in the
device table with the alias alias already exits. If executed with
the -m or -d options, indicates that no entry exists for device
device.
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4 = Indicates that -d was requested and one or more of the specified
attributes were not defined for the device.
FILES
/etc/device.tab
SEE ALSO
devattr(1M), putdgrp(1M).
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