why must boot in single mode.

[LeKhoi]

Hi Chuck and Kris

I am also interesting in the scenario. Some FreeBSD boxes are being
used for webserving in a production environment from data centres.

If this upgrading procedures is in question and is forced to reboot
into single user mode (which is not practical as I am not in the data
centre) then is there a way that we could upgrade the box safely
remotely? Even if we need to shut down the server.

Thanks,

LeKhoi