I would like to control the UID/GID assignment to match that of another system. E.g., UID 101 was Debian-exim, but on a new install that's the UID of messagebus, and Debian-exim is 103. I think I can do a minimal install and then modify /etc/passwd for any accounts not yet created, assuming they don't overlap with already existing ones. But is there a way to intervene before then? Thanks. Ross Boylan