Package: nfs-kernel-server Version: 1:1.2.8-9.2 Severity: serious Fixed: 1:1.3.4-1 The kernel looks[1] for nfsdcltrack in /sbin The package released in jessie installs it to /usr/sbin Fixed in the 1.3.4-1 upload. This affects jessie users, a stable update may be necessary 1. https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=847681#145