diff -Nru docker.io-20.10.2/debian/changelog docker.io-20.10.2/debian/changelog
--- docker.io-20.10.2/debian/changelog	2021-01-15 07:30:18.000000000 -0600
+++ docker.io-20.10.2/debian/changelog	2021-02-23 14:22:13.000000000 -0600
@@ -1,3 +1,10 @@
+docker.io (20.10.2-0ubuntu2) hirsute; urgency=medium
+
+  * Add a preinst check for aufs storage-driver to fail the upgrade.
+    (LP: #1907713)
+
+ -- William 'jawn-smith' Wilson <william.wilson@canonical.com>  Tue, 23 Feb 2021 14:22:13 -0600
+
 docker.io (20.10.2-0ubuntu1) hirsute; urgency=medium
 
   * New upstream release.
diff -Nru docker.io-20.10.2/debian/docker.io.preinst docker.io-20.10.2/debian/docker.io.preinst
--- docker.io-20.10.2/debian/docker.io.preinst	1969-12-31 18:00:00.000000000 -0600
+++ docker.io-20.10.2/debian/docker.io.preinst	2021-02-23 14:22:13.000000000 -0600
@@ -0,0 +1,12 @@
+#!/bin/sh
+set -e
+
+for aufs_dir in "/var/lib/docker/aufs" "/var/snap/docker/common/var-lib-docker/aufs"; do
+	if [ -e "$aufs_dir" ]; then
+		echo "The aufs storage-driver is no longer supported."
+		echo "Please ensure that none of your containers are "
+		echo "using the aufs storage driver, remove the directory "
+		echo "$aufs_dir and try again."
+		exit 1
+	fi
+done