abootimg/abootimg-pack-initrd

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#!/bin/sh
#
if [ "$1" = "-f" ]; then
forcewrite=yes
shift
fi
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initrd=${1:-initrd.img}
ramdisk=${2:-ramdisk}
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if [ ! -d $ramdisk ]; then
echo "$ramdisk does not exist."
exit 1
fi
if [ -f $initrd -a -z "$forcewrite" ]; then
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echo "$initrd already exist."
exit 1
fi
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( cd $ramdisk; find | sort | cpio --quiet -o -H newc ) | gzip > $initrd