Hello all, I just had the same problem of DHCPD not starting after the stretch upgrade from jessie.
Unfortunately the logs that the user gets shown by the upgrade process have an uncplete long line, otherwise the root cause would be obvious. When looking at /var/log/daemon.log here’s the error: Jul 27 20:18:21 hedwig isc-dhcp-server[17921]: Starting ISC DHCPv4 server: dhcpddhcpd service already running (pid file /var/run/dhcpd.pid currenty exists) ... failed! Hence, it seems the upgrade process leaves a dangling PID file around. Removing that PID file manually solved the problem for me. Thanks and cheers Mich ------------------------------------------------------------------------- Michel Lanners | " Read Philosophy. Study Art. 23, Rue Paul Henkes | Ask Questions. Make Mistakes. L-1710 Luxembourg | email m...@lannersnet.lu | http://www.lannersnet.lu | Learn Always. "
