= OpenWrt Factory Reset
One of the benefits of using OpenWrt with an overlay filesystem is that you can offer a simple 'factory reset' option to restore to the default environment before any changes were made to the filesystem.

This is only possible if using an overlay filesystem such as:
* squashfs+f2fs - Newport eMMC
* ubifs+ubifs - Ventana NAND 
* sqashfs+jffs2 - Laguna

To issue a 'factory reset' from the command line run the 'firstboot' application. There is also an option to invoke this from the LuCI web admin.

If the reason for wanting to do a 'factory reset' is that you can not get to your board remotely or fail to boot because of an invalid configuration you must use serial console and [wiki:OpenWrt/init#failsafe failsafe boot] first.