Well when I did the upgrade I got this error
root@OpenWrt:~# ipkg install jasager_2.0.ipk
Installing jasager (2) to root...
Configuring jasager
ln: /etc/rc.d/S91jasager: File exists
/karma/bin/create_option_list.rb:3:in 'require': no such file to load --rexml/document (LoadError)
from /karma/bin/create_option_list.rb:3
httpd: bind: Address already in use
Warning: Installation may have already failed.
Detected 2_rc1 is installed, but this is 2.
Done.
Then when I rebooted and opened the Jasager site I would get some ruby errors I believe, but I'm not completely sure, I didn't save those errors, but they were located where the sections "Status / Main Controls" and "Connected Clients" are. There weren't any buttons, just a long error string.
When that happened I tried installing Jasager again, and got the same stuff, so I tried redoing the mad-wifi drivers, then i tried going to the rc1 and doing the downgrade, but that didn't help. At this point I figured I broke it and just re-flashed.
/shrug. Hope that helps.