37 lines
975 B
Bash
37 lines
975 B
Bash
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#!/bin/sh -eux
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case "$PACKER_BUILDER_TYPE" in
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qemu) exit 0 ;;
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esac
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# Whiteout root
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count=$(df --sync -kP / | tail -n1 | awk -F ' ' '{print $4}')
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count=$(($count-1))
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dd if=/dev/zero of=/tmp/whitespace bs=1M count=$count || echo "dd exit code $? is suppressed";
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rm /tmp/whitespace
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# Whiteout /boot
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count=$(df --sync -kP /boot | tail -n1 | awk -F ' ' '{print $4}')
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count=$(($count-1))
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dd if=/dev/zero of=/boot/whitespace bs=1M count=$count || echo "dd exit code $? is suppressed";
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rm /boot/whitespace
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set +e
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swapuuid="`/sbin/blkid -o value -l -s UUID -t TYPE=swap`";
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case "$?" in
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2|0) ;;
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*) exit 1 ;;
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esac
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set -e
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if [ "x${swapuuid}" != "x" ]; then
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# Whiteout the swap partition to reduce box size
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# Swap is disabled till reboot
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swappart="`readlink -f /dev/disk/by-uuid/$swapuuid`";
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/sbin/swapoff "$swappart";
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dd if=/dev/zero of="$swappart" bs=1M || echo "dd exit code $? is suppressed";
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/sbin/mkswap -U "$swapuuid" "$swappart";
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fi
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sync;
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