This page should help us to make sure the upgrade to Debian lenny is done smoothly and quickly.
Things to watch
Look out for '4gb seg fixup' kernel messages when upgrading the Xen domUs to lenny.
Already running lenny
WOTAN: Still on 2.6.18 so will need a careful reboot.
Still running etch
piper: Has only just been upgraded from sarge to etch.
sil: Had security updates commented out for some reason. Fixed now.