I find the
motd annoying when you log in to a Ubuntu server machine. To get rid of this I do the following as
cd /etc/update-motd.d mkdir klmDisabled mv ??-* klmDisabled
Unfortunately, whenever the packages
update-notifier-common change, they might put their junk again into above directory. I reapply above move to get silence again.
Today I noticed, when I fired up my Ubuntu 12.04 server running within VirtualBox, that these messages may consume so much CPU that they are postponed.