diff --git a/.gitmodules b/.gitmodules
index 6608c42..13058b5 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -273,3 +273,6 @@
 [submodule "dconf-lock"]
 	path = dconf-lock
 	url = ../ansible-role-dconf-lock.git
+[submodule "purge_hard_disks"]
+	path = purge_hard_disks
+	url = ../ansible-role-purge_hard_disks.git
diff --git a/purge_hard_disks b/purge_hard_disks
new file mode 160000
index 0000000..46fc2a2
--- /dev/null
+++ b/purge_hard_disks
@@ -0,0 +1 @@
+Subproject commit 46fc2a2ff7ddf4755823d3666aa085b771f7dddf