>>>>> "Mark" == Mark Moseley <moseleym...@gmail.com> writes:
Mark> This is just me throwing things out to look at, but did the Mark> client mount on the old server use NFS3 and the new upgraded Mark> client uses NFS4? Sometimes that can cause weirdness with id Mark> mapping. Another thing to check is selinux, is it enabled? It's one of those things I have to poke at on RHEL systems, but I can't remember if it's on by default on Debian Buster. getenforce would answer one way or another. John