[9fans] fs administration: how do people update multi-user fs?

[Axel Belinfante <Axel.Belinfante@cs.utwente.nl>]

Just wondering how people who have multiple users using
their fs deal with fs permissions during update from sources.
(in case it makes a difference: non-fossil, but I assume
that the basic questions are independent of fs impl)

Planned down-time to run the update? Or update on-the-fly?
Use `allow' on boot? Use `allow' from console?
How do you avoid that those who do not run the update
profit (even just by accident) from the `allow' flag?
`Hangup' together with `noattach'?

Or is this all just a non-issue?

For updating on-the-fly, I'm wondering whether it would
help to add a version of the console `allow' command
that takes a uid, in the same way as duallow does.
Browsed the fs source; hacking it in does not seem to
be a problem, but, since it is not there yet, it seems
that people can live without it, hence I'm wondering:
what do others do?

Axel.