diff --git a/ubi/obmc-flash-bios-ubiumount-ro@.service b/ubi/obmc-flash-bios-ubiumount-ro@.service
new file mode 100644
index 0000000..b76e62b
--- /dev/null
+++ b/ubi/obmc-flash-bios-ubiumount-ro@.service
@@ -0,0 +1,9 @@
+[Unit]
+Description=Remove UBIFS volume pnor-ro-%I
+Wants=obmc-flash-bios-ubiattach.service
+After=obmc-flash-bios-ubiattach.service
+
+[Service]
+Type=oneshot
+RemainAfterExit=no
+ExecStart=/usr/bin/obmc-flash-bios ubiumount pnor-ro-%i