Re: Upgrading an OpenWRT router

Jason White <jason@jasonjgw.net> writes:

I have a Linksys WRT1900AC router (the version 1 hardware), currently running OpenWRT 15.05-rc3. Now that the final release has been made, I'm contemplating an upgrade.

According to the OpenWRT wiki, I'm supposed to download an image with a file name ending in "sysupgrade.img" rather than "factory.img". However, I can't find such a file on their download site.

If your post-install configuration is minimal, I recommend you skip sysupgrade. Instead just reflash it cleanly (factory.img), then re-apply your customization. I usually make a cpio backup of the whole filesystem first. That -- combined with the separate /rom and /cow --- make it easy to see what needs to be re-applied.