Files
linuxkit/tools/pad4/pad4.sh
Riyaz Faizullabhoy d66bc2d501 Split base/ into base/ and tools/
Signed-off-by: Riyaz Faizullabhoy <riyaz.faizullabhoy@docker.com>
2017-01-31 09:52:30 -08:00

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#!/bin/sh
set -e
cd /tmp
cat > initrd.img
SIZE=$(stat -c "%s" initrd.img)
SIZE4=$(( $SIZE / 4 \* 4 ))
DIFF=$(( $SIZE - $SIZE4 ))
[ $DIFF -ne 0 ] && DIFF=$(( 4 - $DIFF ))
dd if=/dev/zero bs=1 count=$DIFF of=zeropad 2>/dev/null
cat zeropad >> initrd.img
SIZE=$(stat -c "%s" initrd.img)
SIZE4=$(( $SIZE / 4 \* 4 ))
DIFF=$(( $SIZE - $SIZE4 ))
if [ $DIFF -ne 0 ]
then
echo "Bad alignment" >2
exit 1
fi
cat initrd.img