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-
-
- DCOPY(1)
-
-
- NAME
- dcopy V3.3 - physical sector to sector copy program
- Copyright (c) 1985-91 Joerg Genius - Munich
-
- I make this software free to anyone for non commercial use
- under the conditions that nothing is charged for the program
- and the copyright notice has not been modified.
-
- SYNTAX
- dcopy source: destination:[[ /v] || [ /r]]
- dcopy source: filename[.IMG][ /n]
- dcopy filename[.IMG] destination:[[ /v] || [ /r]][ /n]
-
-
- DESCRIPTION
- Dcopy is a general purpose sector_to_sector copy program
- for a wide vaiety of disks. Nearly any disks can be
- copied 'as is'. That means no check is made for the
- directory/file structure or anything else.
-
- In addition to normal disk-to-disk copy capabilities DCOPY
- can write the physical contents of a disk to either a
- compressed or normal (not compressed) datafile on the
- harddisk.
-
- This enebles especially users of large networks to
- exchange whole diskettes including bootarea via their
- network.
-
- the following disktypes are recognized :
-
- IBM SS/DD, 8 sectors/track, 40 tracks, 160 kbyte, 5.25 inch
- IBM SS/DD, 9 sectors/track, 40 tracks, 180 kbyte, 5.25 inch
- IBM DS/DD, 8 sectors/track, 40 tracks, 320 kbyte, 5.25 inch
- IBM DS/DD, 9 sectors/track, 40 tracks, 360 kbyte, 5.25 inch
- IBM DS/HD, 15 sectors/track, 80 tracks, 1200 kbyte, 5.25 inch
- IBM DS/DD, 9 sectors/track, 80 tracks, 720 kByte, 3.5 inch
- IBM DS/DD, 18 sectors/track, 80 tracks, 1440 kByte, 3.5 inch
- DEC SS/QD, 10 sectors/track, 80 tracks, 400 kbyte, 5.25 inch (RX50)
-
- There must be parameters for both source and destination.
- One of the parameters may be replaced by a filename. In
- this case the whole diskimage is written (if destination
- is given a .IMG filename) or read (if source is an .IMG
- file) from a imagefile on a harddisk (or network). If the
- file extension is omitted .IMG is assumed.
-
- You have two choices to handle diskimage files : by
- default DCOPY will produce a very own but useful file
- format: the first two byte are the capacity of the
- original disk in 512 byte blocks. Now a sector bitmap
- follows. The lenght of the bitmap depends on the total
- number of blocks on the disk. For every 8 blocks one
- more byte is needed. A hight bit in this bitmap means the
- appropriate sector consists of 512 equal bytes. In this
- case the corresponding byte in a sector bytemap following
- the bitmap is set to this value. By this method it is
- possible, to make diskimage files much smaller. An empty
- MS-DOS formatted disk only takes about 10 kbyte instead of
- 400.
-
- For some special purpose it may be useful to write the
- whole, uncompressed diskimage to the harddisk. To do that
- simply add '/n' at the end of the commandline. This
- switch wors for both directions of copying.
-
- An optional switch /v will force a sector_by_sector
- verification of the destination disk after copy. The /r
- option switches DCOPY into read/verify only mode. These
- two switches are valid only with if destination is a
- floppy.
-
-
- FILES
- dcopy.exe executable code for MS-DOS
- dcopy.doc this file
-
- Sources can be requested from the author.
-
-
- BUGS
- Version 3.xx of DCOPY is NOT compatible with the 2.xx imagefile
- format. 2.xx had a very special sector interleaving for use with
- Digital's Professional 300 and 350 computers.
-
-
- NOTES
- Version 3.3.0 now supports 3.5 inch disk formats
- Version 3.3.1 and 3.3.2 minor bugfixes
-
- Please report any bugs and comments to
-
- Joerg K. Genius
- Saarlouiser Str. 40
- D-8000 Munich 50
-
- or via network :
-
- MUNICH::GENIUS (EASYnet)
- joerg@decum.uucp
-