NAME

dn_setup − Creates and maintains device name databases. (The −sanity_check  option is provided for system administration.) 

SYNOPSIS

/sbin/dn_setup [option]

OPTIONS

−sanity_check
Verifies the consistency and currency of the device special files and the directory hierarchy. The message Passed is displayed if the check is successful. 

The −sanity_check option is the only option that a system administrator should use. Use the following options only under guidance of your technical support representative. 

−boot
Runs at boot time to create all the default device special databases, files, and directories.

−default
Creates the required device special directories only.

−default_config
Creates the class and category databases only.

The following options are for internal use only and are used for debugging.  Using these options can cause unrecoverable errors and prevent your system from booting:

−clean
Deletes everything in the device special directory tree and re-creates the entire tree (including device special files).

−init
Removes all the default device special databases, files, and directories. The −init prompts you to run the following command, which recreates all the device special files. 

# /sbin/dsfmgr -K

DESCRIPTION

The /sbin/dn_setup script runs automatically at system startup to create device special file names and is not normally used by administrators.  However, you might see device-related error messages at the system console during system startup, indicating that the system is unable to assign device special file names. Following such errors, use the −sanity_check option to verify the device name database. 

If the −sanity_check option displays messages other than Passed, use the dsfmgr command to further diagnose and correct the problem. 

The /sbin/bcheckrc utility also verifies device special files during system startup. If /sbin/bcheckrc discovers any problems, it displays the following message at the console:

bcheckrc: Device Naming failed initial check.
    Run dsfmgr -v, and if no errors are
    reported, exit or type CTRL-D to continue
    booting normally.

RESTRICTIONS

Other than the −sanity_check option, use the dn_setup command only under the guidance of your technical support representative. Otherwise, you might alter critical system databases and prevent the system from booting. Such database problems might not be recoverable, requiring a full restoration of the operating system from your backup. 

EXAMPLES

Typical use of the command is as follows:

# /sbin/dn_setup -sanity_check
Passed.

SEE ALSO

Commands: dsfmgr(8), bcheckrc(8)

Hardware Management