What's the best way to delete all "custom" partitions created by OpenWRT and reset to the Linksys stock firwmare ? I have a requirement that I need to remove all OpenWRT (also all partitions) and return to the stock/factory configuration.
Just using the sysupgrade command with -F will "delete" all partitions ?
Ideally, you should use the "Revert to Stock" instructions in the Wiki page for your device. Since you don't mention your device's model - it's difficult to provide more information.