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b738120d41
These are standalone, better to have them at the top. Signed-off-by: Justin Cormack <justin.cormack@docker.com>
35 lines
504 B
Bash
Executable File
35 lines
504 B
Bash
Executable File
#!/bin/sh
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set -e
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mkdir -p /tmp/input
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cd /tmp/input
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tar xf -
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find . | cpio -H newc -o | gzip -9 > ../initrd.img
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cd /tmp
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SIZE=$(stat -c "%s" initrd.img)
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SIZE4=$(( $SIZE / 4 \* 4 ))
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DIFF=$(( $SIZE - $SIZE4 ))
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[ $DIFF -ne 0 ] && DIFF=$(( 4 - $DIFF ))
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dd if=/dev/zero bs=1 count=$DIFF of=zeropad 2>/dev/null
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cat zeropad >> initrd.img
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SIZE=$(stat -c "%s" initrd.img)
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SIZE4=$(( $SIZE / 4 \* 4 ))
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DIFF=$(( $SIZE - $SIZE4 ))
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if [ $DIFF -ne 0 ]
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then
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echo "Bad alignment" >2
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exit 1
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fi
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cat initrd.img
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