Help with version upgrade

Installing and Using OpenWrt
1

Hi all,

I only recently started using openwrt, so I am not very experienced. I would like to ask advice on the best way to upgrade to a latest release of the same series.
I added the packages https-dns-proxy to and luci-app-https-dns-proxy to my install, so if I upgrade those will be lost.
My idea was to proceed this way to preserve all my settings without having to input everything manually again:

  1. Backup my current configuration to an archive through LuCI.
  2. Flash the latest release without keeping the settings.
  3. Install https-dns-proxy and luci-app-https-dns-proxy again.
  4. Restore my configuration from the backup I saved.

Is this reasonable and especially, is it safe enough? Will I get my configuration back, including https-dns-proxy settings?
Apologies if this is a trivial question, but I am not sure I understand how the backup of the settings works. Does it usually preserve all the configuration, including all the settings of extra packages that are installed?

2

add the packages to the package list (click the tiny arrow) in https://firmware-selector.openwrt.org/, DL the new sysupgrade image, and flash it.

3

Thank you for the advice. Would my alternative work if I did not want to request a custom image? I guess I am feeling paranoid about the recent vulnerability in the attended system upgrade.

4

there's owut - Owut: OpenWrt Upgrade Tool.

FYI - https://firmware-selector.openwrt.org/ (currently down, I see) doesn't use ASU.

5

If you like to do this in LuCI, install the luci-app-attendedsysupgrade and use that. It performs all of your steps automatically.

That was a click-bait issue that never exposed you to any viable exploit, and the purported problems were resolved some months ago.