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Disk copy and dd image files -- howto



Hi,

after a earlier message i did some testing of dd floppy images and
Apple's disk copy 6.3.3, a friend of mine claimed it would make
floppies from dd images with no special effort, i however had to fsck
with it to get it to work... but it DOES work:

you must set the file type and creator of the dd image to type: `DDim'
Creator: ddsk

then LOCK THE FILE, do this before you even attempt to touch it with
Disk copy, it will loop back mount the image read-write at the drop of
a hat, and if it does that MacOS will of course helpfully remove the
boot blocks ruining the floppy image.  

run Disk Copy, and select `Make Floppy' from the Utilities menu,
select the LOCKED image file from the resulting dialog.  it will ask
you to insert a floppy, then ask if you really want to erase
it. (yup were using macos alright...) it should sit there for awhile
working on it and when done it should eject the floppy.  

when the floppy is ejected SET THE WRITE PROTECT TAB!  otherwise if
you accidently mount it in macos, macos will `helpfully' ruin it.

Dan:  add the following line to your maps file for mkhybrid when
creating CD images:

.img        Raw     'ddsk'    'DDim'   "floppy_image"

this will cause the image files on the CD to show up with the correct
file type/creator in macos.  

for people downloading from ftp you will have to use resedit or
something to change the file types (or try configuring `internet
config' to set files with the .img extension to the above
type/creator, but that probably won't work)

unless i set these file types Disk copy kept whining about an error
-54 (iirc that means resource fork not found.  i hate HFS...)

sheesh unix is much easier to use then MacOS...

-- 
Ethan Benson
http://www.alaska.net/~erbenson/

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