diff --git a/roles/1-prep/templates/iiab-expand-rootfs b/roles/1-prep/templates/iiab-expand-rootfs
index 9b5b01c9d..db77f59ec 100644
--- a/roles/1-prep/templates/iiab-expand-rootfs
+++ b/roles/1-prep/templates/iiab-expand-rootfs
@@ -32,7 +32,7 @@ if [ -f /.expand-rootfs ] || [ -f /.resize-rootfs ]; then
         fi
 
         # Expand partition
-        growpart $ROOT_DEV $ROOT_PART_NUM    # raspi-config instead uses fdisk
+        growpart $ROOT_DEV $ROOT_PART_NUM || true    # raspi-config instead uses fdisk.  WARNING: growpart RC 2 is more severe than RC 1, and should possibly be handled separately in future?
         resize2fs $ROOT_PART
 
         # 2022-03-15: Legacy code below worked with Raspberry Pi microSD cards