I never ran a full-upgrade, though.I do not think I can help you better than @fabian who knows what's in the postinst script, but ...
I do not see howupgrade
if you subsequently runfull-upgrade
would be a problem in and of itself though.
All along I thought theUnable to load access control list: No buffer space available
was a red herring, but now I wonder if it's not related.
You're right about the buffer space. It's basically preventing me from running any commands. I tried to backup the VMs using vzdump and it gave me that same buffer error...