I've just "apt-get dist-upgrade" a couple of machines (one sparc one i386). I'm running unstable and when nfs-kernel-server was being upgraded it gave the message:
Starting NFS kernel daemon: nfsdnfssvc: Invalid argument mountd. Until now NFS has been working just fine. I'm running kernel 2.2.19. (NFS is now not working - remote hosts can not access this host.) Changing to nfs-user-server only partially works. Some exports are working just fine while others are giving me: mount: wrong fs type, bad option, bad superblock on hostname:/dmnt/vlx, or too many mounted file systems and yet other "identical" mounts work just fine...... Any ideas? Regards, Graham