diff --git a/package/czechlight-cfg-fs/czechlight-cfg-fs.mk b/package/czechlight-cfg-fs/czechlight-cfg-fs.mk
index a598682..a0c2e8c 100644
--- a/package/czechlight-cfg-fs/czechlight-cfg-fs.mk
+++ b/package/czechlight-cfg-fs/czechlight-cfg-fs.mk
@@ -13,6 +13,9 @@
 endif
 
 define CZECHLIGHT_CFG_FS_INSTALL_TARGET_CMDS
+	$(INSTALL) -D -m 0644 \
+		$(BR2_EXTERNAL_CZECHLIGHT_PATH)/package/czechlight-cfg-fs/etc-fstab \
+		$(TARGET_DIR)/etc/fstab
 	mkdir -p $(TARGET_DIR)/usr/lib/systemd/system/local-fs.target.wants/
 	$(INSTALL) -D -m 0644 \
 		$(BR2_EXTERNAL_CZECHLIGHT_PATH)/package/czechlight-cfg-fs/etc-overlay.service \
diff --git a/package/czechlight-cfg-fs/etc-fstab b/package/czechlight-cfg-fs/etc-fstab
new file mode 100644
index 0000000..7517ca9
--- /dev/null
+++ b/package/czechlight-cfg-fs/etc-fstab
@@ -0,0 +1,3 @@
+/dev/root / auto ro,errors=panic 0 1
+tmpfs /var tmpfs mode=1777 0 0
+tmpfs /.ov tmpfs mode=0700 0 0