lfd(1)
_________________________________________________________________
lfd Command
labeled floppy diskette interface program for DG/UX
_________________________________________________________________
SYNTAX
lfd [ options ] volumename filename
DESCRIPTION
Lfd saves and restores files on labeled floppy diskettes. Its
actions are controlled by options given at command invocation
time. The other arguments to the command are Volumename and
filename specifying the name of the floppy volume and the name of
the file that is to be dumped to or restored from that floppy
volume.
The option portion is specified by one of the following letters:
-w The named file is written to the end of the current
volume in the diskette drive. The user may be prompted
to put a fresh floppy in if during the writing of the
file to the floppy, we exceed the capacity of the floppy.
The system will then continue once a new floppy is put
into the drive.
-r The named file is extracted from the diskette. The data
is written to the standard output.
-t The names of all the files on the diskette are listed.
The volume label and the error map are printed as well.
-n The floppy diskette is formatted to be a new labeled
diskette. This erases any old labels. In a multi-volume
dump, only the first floppy will be newly formatted. The
-S option will handle subsequent floppies.
-c The floppy is assumed to be TPI_48 instead of the default
TPI_96. This means that the floppy has 40 cylinders
instead of the default (80).
-s # Sector size is set to the value of the next argument on
the command line.
-v Normally, lfd does its work silently. The v (verbose)
option causes it to type out status information as it
runs. This information is what cylinder is being read or
written to the floppy volume. Also, when a floppy is
DG/UX 4.00 Page 1
Licensed material--property of copyright holder(s)
lfd(1)
opened, the volume and file information is printed.
-z # This sets the sectors per cylinder to the next argument
on the command line.
-b # This sets the logical block size to the next argument on
the command line.
-l # This sets the logical record size to the next argument on
the command line.
-p This allows no errors during reading or writing. The
program may exit on an error if it is part-way through
writing a floppy. If it is being newly formatted, then
the program will prompt you to insert another floppy.
-f name The next argument is the floppy device name. Default
name is /dev/rpdsk/c64d0.
-S Every floppy after the initial floppy is scratched. All
labeled floppies are erased. An unformatted floppy is
automatically formated.
-V Automatic volume name generation is enabled. On write,
if the volume name specified ends in two digits, then
each subsequent floppy inserted after the initial will
have the name incremented by one. Thus if the first
volume is DGUX00, the second will be DGUX01. If this
option is not enabled, then the system will ask you for a
volume name when you load a subsequent floppy into the
drive. This option also allows you to restart an
automatic volume generation session on a floppy that has
a name that ends in two digits.
-y Answer yes to the prompt asking whether to format or not.
Always trash the volume.
-E nnnnnn
Set the expiration date to the 6 character field
specified.
-F n Set the format to the 1 character field specified.
-B n Set the bypass indicator to the 1 character field
specified.
FILES
/dev/rdsk/*
DG/UX 4.00 Page 2
Licensed material--property of copyright holder(s)
lfd(1)
DIAGNOSTICS
Complains about bad floppies and removal of floppy during its
operation.
EXAMPLES
To write an archive of the entire system to floppies, type
find / -print | cpio -ov | lfd -nwySV DUMP00 root
To read in an archive of the entire system from floppies, type
lfd -rV DUMP00 root | cpio -idv
To save a file on a floppy, type
lfd -wy myvol tar.c <tar.c
To read a file back, type
lfd -r myvol tar.c >tar.c
DG/UX 4.00 Page 3
Licensed material--property of copyright holder(s)