Now that I have Ubiquity nodes up and running, I took my old Linksys's out of service. As they can't do channel -2. Okay, what to do with the Linksys's? Tried to convert one (a version 2 WRT54G) to become OpenWRT, no go. DDwrt? no go. Okay, back to Linksys firmware, still no go... Probably a step I don't know about 
Looked, but didn't find anything.
Well, I ended up making it into a switch by disabling the wifi function, and disabled the WAN. And set the LAN IP to 192.168.1.98 with the DHCP disabled. And to make the "internet" ethernet jack become an extra LAN jack, edited the file /etc/vlan with vi, using SmarTTY program. changed the line
config switch eth0
option vlan0 "1 2 3 4 5*"
option vlan1 "0 5"
to become
config switch eth0
option vlan0 "0 1 2 3 4 5*"
Then saved and exited, then went to
open http://localnode:8080/cgi-bin/setup in your web browser. Click save changes, even if you didn't change anything, and then click reboot.
And it worked. (Yes, I'm still a rank novice here)
This router now just a switch still has a couple of web pages I created earlier. That I can access via my home network (not the mesh) at
http://192.168.1.98:8080/samlexmods.htm or http://192.168.1.98:8080/phonetic.htm Yes, I know you can't access them Just listed them as an example.
Mark