volcopy_hfs: volcopy, labelit — copy an HFS file system with label checking
command makes a literal copy of an HFS file system
using a block size matched to the device.
recognizes the following options:
- -F hfs
Specifies the HFS file system type.
Invoke a verification sequence
requiring a positive operator response
instead of the standard delay before the copy is made.
(default) Invoke the DEL-if-wrong verification sequence.
response to all questions
Echo the completed command line, but perform no other actions.
The command line is generated by incorporating
the user-specified options and arguments
with other information derived from
This option allows the user to verify the command line.
Other options are used with 9-track magnetic tapes:
- -bpi density
Bits per inch.
- -feet size
Size of reel in feet.
- -reel num
Beginning reel number for a restarted copy.
Use double buffered I/O.
command requests length and density information
if they are not given on the command line
and they are not recorded on an input tape label.
If the file system is too large to fit on one reel, the
command prompts for additional reels.
Labels of all reels are checked.
Tapes can be mounted alternately on two or more drives.
command is interrupted,
it asks if the user wants to quit
or wants to escape to the command interpreter.
In the latter case, other operations (such as executing the
command) can be performed before returning to the
command by exiting the command interpreter.
The file system name on the device (e.g.,
The physical disk section or tape (e.g.,
The physical volume name;
it should match the external sticker.
Such label names are limited to six or fewer characters.
to use the existing volume name.
The device from which the copy of the file system is being extracted.
The volume from which the copy of the file system is being extracted.
The target device.
The target volume.
command can be used to provide initial labels
for unmounted disk or tape file systems.
With the optional arguments omitted, the
command prints current label values.
option provides for initial labeling of new tapes only
(this destroys previous contents).
options can be specified for the
The behavior of the
options is similar to their behavior in the