nbdst(8) [osx man page]

NBDST(8)						    BSD System Manager's Manual 						  NBDST(8)

NAME

     nbdst -- NetBoot deferred shadow tool

SYNOPSIS

     nbdst [-recycle | -preallocate size] devnode shadowfile

DESCRIPTION

     nbdst is used during NetBoot to associate a shadow file with the disk image being used as the root device. After the shadow file is attached,
     subsequent writes to the root device will be redirected to the shadow file, which normally resides on local storage.  nbdst is invoked by
     /etc/rc.netboot

ARGUMENTS

     The following arguments must be specified:
     devnode	    The device node of the root device, in the form "disk0"
     shadowfile     Path to a shadow file which will be created and associated with the NetBoot root device

OPTIONS

     -recycle  If a shadow file already exists, reset it and use it again.  Otherwise, information written to an existing shadow file will reap-
	       pear.  Reusing a previous shadow file without resetting it requires that the shadow file be created with the same base image.

     -preallocate size
	       Set the shadow file to the given size up front.	This forces a reset of the shadow file (like -recycle).

NOTE

     nbdst can only be run as root.

SEE ALSO

     hdiutil(1), hdik(8)

Mac OS X							    29 Apr 2003 							  Mac OS X

pwconv(1M)						  System Administration Commands						pwconv(1M)

NAME

       pwconv - installs and updates /etc/shadow with information from /etc/passwd

SYNOPSIS

       pwconv

DESCRIPTION

       The pwconv command creates and updates /etc/shadow with information from /etc/passwd.

       pwconv relies on a special value of 'x' in the password field of /etc/passwd. This value of 'x' indicates that the password for the user is
       already in /etc/shadow and should not be modified.

       If the /etc/shadow file does not exist, this command will create /etc/shadow with  information  from  /etc/passwd.  The	command  populates
       /etc/shadow  with  the  user's  login  name,  password,	and  password  aging  information. If password aging information does not exist in
       /etc/passwd for a given user, none will be added to  /etc/shadow. However, the last changed information will always be updated.

       If the  /etc/shadow file does exist, the following tasks will be performed:

		Entries that are in the  /etc/passwd file and not in the /etc/shadow file will be added to the /etc/shadow file.

		Entries that are in the  /etc/shadow file and not in the /etc/passwd file will be removed from /etc/shadow.

		Password attributes (for example, password and aging information)  that exist in an /etc/passwd entry will be moved to the  corre-
		sponding entry in  /etc/shadow.

       The pwconv command can only be used by the super-user.

FILES

       /etc/opasswd

       /etc/oshadow

       /etc/passwd

       /etc/shadow

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       passwd(1), passmgmt(1M), usermod(1M), passwd(4), attributes(5)

DIAGNOSTICS

       pwconv exits with one of the following values:

       0	SUCCESS.

       1	Permission denied.

       2	Invalid command syntax.

       3	Unexpected failure.  Conversion not done.

       4	Unexpected failure.  Password file(s) missing.

       5	Password file(s) busy.	Try again later.

       6	Bad entry in /etc/shadow file.

SunOS 5.10							    9 Mar 1993								pwconv(1M)