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-rw-r--r--scripts/zerodisk.sh10
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diff --git a/scripts/zerodisk.sh b/scripts/zerodisk.sh
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+++ b/scripts/zerodisk.sh
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+#!/bin/bash
+
+# Zero out the free space to save space in the final image:
+dd if=/dev/zero of=/EMPTY bs=1M
+rm -f /EMPTY
+
+# Sync to ensure that the delete completes before this moves on.
+sync
+sync
+sync