OK, it is because one of the packages has been removed from the installation and the updater somehow cannot handle this situation gracefully.

We’ll fix this but in the meantime, you can update to RC-2a using the setup exe file.

Download the RC-2a setup from here: http://download1.avast.com/files/beta/adnm-no-msde.zip and run it on the target. Update option will be offered.

BTW the release version of AMS/console will not require a reboot after update. This is not the case for the clients though - as it contains device drivers and other components that cannot be simply unloaded from the system.

Thanks
Vlk