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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

Check Out this Related 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) macOS 29 Apr 2003 macOS
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