System Administration Commands devfsadm(1M)
NAME
devfsadm, devfsadmd - administration command for /dev
SYNOPSIS
/usr/sbin/devfsadm [-C] [-c deviceclass] [-i drivername]
[ -n] [-r rootdir] [-s] [-t tablefile] [-v]
/usr/lib/devfsadm/devfsadmd
DESCRIPTION
devfsadm(1M) maintains the /dev namespace. It replaces the
previous suite of devfs administration tools including
drvconfig(1M), disks(1M), tapes(1M), ports(1M),
audlinks(1M), and devlinks(1M).
The default operation is to attempt to load every driver in
the system and attach to all possible device instances.
Next, devfsadm creates logical links to device nodes in /dev
and /devices and loads the device policy.
devfsadmd(1M) is the daemon version of devfsadm(1M). The
daemon is started during system startup and is responsible
for handling both reconfiguration boot processing and updat-
ing /dev and /devices in response to dynamic reconfiguration
event notifications from the kernel.
For compatibility purposes, drvconfig(1M), disks(1M),
tapes(1M), ports(1M), audlinks(1M), and devlinks(1M) are
implemented as links to devfsadm.
In addition to managing /dev, devfsadm also maintains the
pathtoinst(4) database.
OPTIONS
The following options are supported:
-C Cleanup mode. Prompt devfsadm to cleanup
dangling /dev links that are not normally
removed. If the -c option is also used,
devfsadm only cleans up for the listed
devices' classes.
-c deviceclass Restrict operations to devices of class
deviceclass. Solaris defines the follow-
ing values for deviceclass: disk, tape,
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System Administration Commands devfsadm(1M)
port, audio, and pseudo. This option
might be specified more than once to
specify multiple device classes.
-i drivername Configure only the devices for the named
driver, drivername.
-n Do not attempt to load drivers or add new
nodes to the kernel device tree.
-s Suppress any changes to /dev. This is
useful with the -v option for debugging.
-t tablefile Read an alternate devlink.tab file.
devfsadm normally reads /etc/devlink.tab.
-r rootdir Presume that the /dev directory trees are
found under rootdir, not directly under
root (/). No other use or assumptions are
made about rootdir.
-v Print changes to /dev in verbose mode.
EXIT STATUS
The following exit values are returned:
0 Successful completion.
1 An error occurred.
FILES
/devices
device nodes directory
/dev
logical symbolic links to /devices
/usr/lib/devfsadm/devfsadmd
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System Administration Commands devfsadm(1M)
devfsadm daemon
/dev/.devfsadmdev.lock
update lock file
/dev/.devfsadmdaemon.lock
daemon lock file
/etc/security/devicepolicy
device policy file
/etc/security/extraprivs
additional device privileges
ATRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
ATRIBUTE TYPE ATRIBUTE VALUE
Availability SUNWcsu
SEE ALSO
svcs(1), adddrv(1M), modinfo(1M), modload(1M),
modunload(1M), remdrv(1M), svcadm(1M), tapes(1M),
pathtoinst(4), attributes(5), privileges(5), smf(5),
devfs(7FS)
NOTES
This document does not constitute an API. The /devices
directory might not exist or might have different contents
or interpretations in a future release. The existence of
this notice does not imply that any other documentation that
lacks this notice constitutes an API.
devfsadm no longer manages the /devices name space. See
devfs(7FS).
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System Administration Commands devfsadm(1M)
The device configuration service is managed by the service
management facility, smf(5), under the service identifier,
and can be used to start devfsadm during reconfiguration
boot by:
svc:/system/device/local:default
Otherwise, devfsadm is started by:
svc:/system/sysevent:default
Administrative actions on this service, such as enabling,
disabling, or requesting restart, can be performed using
svcadm(1M). The service's status can be queried using the
svcs(1) command.
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