[wryun]

On most openwrt devices you can compare /rom/etc/config to /etc/config (though this will get you a bunch of automatic changes as well).

[choobacker]

Tracking config via VCS is great, but the automatic changes is what then makes it tricky to understand what you've actually configured.

[choobacker]

I had a look more into this. https://www.reddit.com/r/openwrt/comments/114kv0y/weeding_ou... has some people with the problem that I'm trying to avoid.

I see the fresh re-install suggestions probably work but that's tedious and risky.

[RGamma]

GP missed this basic fact and then moved to NixOS for a router target? What!?

[darkwater]

I use NixOS, btw

[teekert]

He was missing a config to compare to previous versions so it makes sense from that perspective.

[hagbard_c]

On virtual routers there is no content in /rom. What you can easily do is install another copy of the same image on another VM or container and run it through firstboot. Make a backup and compare it with a backup from your running system. Even better is to make a backup just after firstboot, then use the system and compare your current backup with the first one.

Do keep in mind that the OpenWRT backup does not contain information about which extra packages were installed after firstboot. I solved this adding a cron job which runs opkg list-installed > /etc/opkg_installed.txt and adding that last filepath to /etc/sysupgrade.conf so it gets added to backups.

[FeistySkink]

If you have an overlay, you can do something like this to list user-installed packages only:

    ls /overlay/upper/usr/lib/opkg/info/*.list | sed -e 's/.*\///' | sed -e 's/\.list//'

[yjftsjthsd-h]

That's not complete, though, is it? Ex. if I follow https://openwrt.org/docs/guide-user/network/wifi/wifiextende... most of the config is covered, but not the parts that disable daemons.