Package: ntp Version: 1:4.2.8p4+dfsg-3+b1 Followup-For: Bug #809344 I recently noticed this same issue with the dhcp hook not removing the new "pool" lines from copied ntp.conf.
This issue is still present in 1:4.2.8p4+dfsg-3+b1. I can also confirm that the patch provided by Ron in the initial bug report fixes this issue. I independently arrived at the same patch and then found Ron's bug report when I was checking the ntp bug list before submitting my report and patch. -- System Information: Debian Release: stretch/sid APT prefers unstable APT policy: (990, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.4.0-1-amd64 (SMP w/8 CPU cores) Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages ntp depends on: ii adduser 3.114 ii dpkg 1.18.4 ii libc6 2.22-5 ii libcap2 1:2.24-12 ii libedit2 3.1-20150325-1+b1 ii libopts25 1:5.18.7-3 ii libssl1.0.2 1.0.2g-1 ii lsb-base 9.20160110 ii netbase 5.3 Versions of packages ntp recommends: ii perl 5.22.1-9 Versions of packages ntp suggests: pn ntp-doc <none> -- no debconf information