diff --git a/files/initrd/opt/rr/model-configs/HD6500.yml b/files/initrd/opt/rr/model-configs/HD6500.yml
index cd5babf8..caaf7463 100644
--- a/files/initrd/opt/rr/model-configs/HD6500.yml
+++ b/files/initrd/opt/rr/model-configs/HD6500.yml
@@ -13,6 +13,8 @@ synoinfo: &synoinfo
   supportsas: "no"
   support_multipath: "yes"
   support_install_only_dev: "no"
+  isolated_disk_system: "no"
+  required_system_disk_number: "0"
   maxlanport: "8"
   netif_seq: "0 1 2 3 4 5 6 7"
   buzzeroffen: "0xffff"
diff --git a/files/initrd/opt/rr/model-configs/SA3400D.yml.disabled b/files/initrd/opt/rr/model-configs/SA3400D.yml.disabled
index 81772649..ddd104f7 100644
--- a/files/initrd/opt/rr/model-configs/SA3400D.yml.disabled
+++ b/files/initrd/opt/rr/model-configs/SA3400D.yml.disabled
@@ -17,6 +17,7 @@ synoinfo: &synoinfo
   no_disk_system: "no"
   support_auto_install: "no"
   support_install_only_dev: "no"
+  required_system_disk_number: "0"
   maxlanport: "8"
   netif_seq: "0 1 2 3 4 5 6 7"
 cmdline: &cmdline