diff --git a/bin/update-ca-trust b/bin/update-ca-trust
new file mode 100755
index 000000000..34147ce58
--- /dev/null
+++ b/bin/update-ca-trust
@@ -0,0 +1,44 @@
+#!/bin/bash
+
+install -d  /{etc,usr/share}/ca-certificates/trust-source/{anchors,blacklist}
+
+# Directories used by update-ca-trust (aka "trust extract-compat")
+install -d  /etc/{ssl/certs/java,ca-certificates/extracted}
+
+# Compatibility link for OpenSSL using /etc/ssl as CAdir
+# Used in preference to the individual links in /etc/ssl/certs
+ln -sr "/etc/ca-certificates/extracted/tls-ca-bundle.pem" "/etc/ssl/cert.pem"
+
+# Compatiblity link for legacy bundle
+ln -sr "/etc/ca-certificates/extracted/tls-ca-bundle.pem" "/etc/ssl/certs/ca-certificates.crt"
+
+
+# At this time, while this script is trivial, we ignore any parameters given.
+# However, for backwards compatibility reasons, future versions of this script must
+# support the syntax "update-ca-trust extract" trigger the generation of output
+# files in $DEST.
+
+DEST=/etc/ca-certificates/extracted
+
+extract() {
+  trust extract --overwrite "$@"
+}
+
+# The directory-format extractors remove all files in the target directory, but not directories or files therein
+extract --format=pem-directory-hash   --filter=ca-anchors --purpose=server-auth  $DEST/cadir
+extract --comment --format=pem-bundle --filter=ca-anchors --purpose=server-auth  $DEST/tls-ca-bundle.pem
+extract --comment --format=pem-bundle --filter=ca-anchors --purpose=email        $DEST/email-ca-bundle.pem
+extract --comment --format=pem-bundle --filter=ca-anchors --purpose=code-signing $DEST/objsign-ca-bundle.pem
+extract --comment --format=openssl-bundle --filter=certificates $DEST/ca-bundle.trust.crt
+
+# We don't want to have to remove everything from the certs directory but neither
+# do we want to leave stale certs around, so symlink it all from somewhere else
+for f in $DEST/cadir/*; do
+  ln -fsr -t /etc/ssl/certs "$f"
+done
+
+# Now find and remove all broken symlinks
+find -L /etc/ssl/certs -maxdepth 1 -type l -delete
+
+# Java bundle
+extract --format=java-cacerts --filter=ca-anchors --purpose=server-auth /etc/ssl/certs/java/cacerts