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20 lines
745 B
Plaintext
20 lines
745 B
Plaintext
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#!/bin/sh
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# This will take a given directory and make a 'big floppy image'
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# out of it, suitable for nodemedia upload.
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if [ -z "$1" -o -z "$2" ]; then
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echo "Usage: $0 <directory> <imagefile>"
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exit 1
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fi
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# Get the needed payload side
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SIZE=$(du -sB 512 $1|awk '{print $1}')
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ENTRIES=$(find $1 |wc -l)
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# Also, each file and directory has overhead, pad size by 32kb per file,
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# which should be overkill but other values proved to be inadequate
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# A deeper understanding of VFAT would probably allow for more precise value
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SIZE=$((SIZE + ENTRIES * 64))
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dd if=/dev/zero of=$2 bs=512 count=$SIZE
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# Make a big single sided floppy with many many tracks, saves on complex math
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mformat -i $2 -d 1 -t $SIZE -s 1 -h 1 ::
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mcopy -i $2 -s $1/* ::
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