[Labs-announce] IMPORTANT: rolling reboots today

[Andrew Bogott]

In response to a new kernel exploit revealed today, I will be upgrading 
and rebooting all labs VMs today.  We'll be running a dist-upgrade on 
all reachable labs instances, then rebooting the virt hosts (which will, 
in turn, reboot the associated labs vms.) Total downtime for any given 
instance should only be 5-10 minutes, but you will need to restart 
services and such after the restart.

We'll do our best to ensure that tools survive the reboots -- more on 
that as the day develops.

-Andrew