How to handle failed upgrade with linksys 3200ACM


I have failed upgrading my Linksys 3200ACM secondary partition from 19.07.3 to 19.07.4 and , so I have switched back to the primary partition.

it possible to copy the primary partition to secondey in order to reflash it?



You can flash again from the primary partition to the secondary. Use some image which works properly in case you tried to flash something experimental.


but what about my configuration in the primary can I copy of all it to the secondery?
BTW, is there any sync mechanism to do so?

If you preserve settings, it will take the config from the current partition to the alternate during the upgrade.

You seem too focussed on the partitions (like most wrt AC owners for some reason). Just flash, and if it doesn't work, roll back. Doesn't matter if you end up daily driving the primary or alternate.