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34 lines
722 B
34 lines
722 B
4 years ago
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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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major_version="`uname -r | awk -F. '{print $1}'`";
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if [ "$major_version" -eq 10 ]; then
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ZROOT="zroot"
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else
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ZROOT="zroot/ROOT/default"
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fi
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COMPRESSION=$(zfs get -H compression $ZROOT | cut -f3);
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zfs set compression=off $ZROOT;
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dd if=/dev/zero of=/EMPTY bs=1m &
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PID=$!;
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avail=$(zfs get -pH avail $ZROOT | cut -f3);
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while [ "$avail" -ne 0 ]; do
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sleep 15;
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avail=$(zfs get -pH avail $ZROOT | cut -f3);
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done
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kill $PID || echo "dd already exited";
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rm -f /EMPTY;
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# Block until the empty file has been removed, otherwise, Packer
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# will try to kill the box while the disk is still full and that's bad
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sync;
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zfs set compression=$COMPRESSION $ZROOT;
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