I drag and drop multicast-6.34.6-mipsbe.npk in Winbox.
Reboot.
multicast is not in system packages.
How to view the installation log files?
How to install the package through the terminal?
Just see the beginning of the log after the boot is completed. Be sure the versions matched.
[admin@AP] > log print detail
time=06:25:00 topics=system,info,account message=“user admin logged in from 172.16.1.249 via telnet”
so again.
You have already installed ros 6.34.6 and want to add multicast 6.34.6 package. You drag-n-drop the file into the winbox window, wait till it is copied and do reboot. After the reboot, read the log, there should be much more than just you have logged in.
Hope you have not misconfigured the logging.