Package: isc-dhcp-server Version: 4.4.1-2 Severity: normal Apologies if this report turns out to be a duplicate; I did look through bugs.d.o (and those PRs listed by reportbug) but didn't find an existing one for this issue.
The problem is that the isc-dhcp-server package installation fails in it's last step: (#) root@master:~ >>> apt-get install isc-dhcp-server -y Reading package lists... Done Building dependency tree Reading state information... Done Suggested packages: policykit-1 isc-dhcp-server-ldap The following NEW packages will be installed: isc-dhcp-server 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 0 B/548 kB of archives. After this operation, 1,468 kB of additional disk space will be used. Preconfiguring packages ... Selecting previously unselected package isc-dhcp-server. (Reading database ... 56261 files and directories currently installed.) Preparing to unpack .../isc-dhcp-server_4.4.1-2_amd64.deb ... Unpacking isc-dhcp-server (4.4.1-2) ... Processing triggers for systemd (240-2) ... Processing triggers for man-db (2.8.4-3) ... Setting up isc-dhcp-server (4.4.1-2) ... Generating /etc/default/isc-dhcp-server... restorecon: lstat(/var/lib/dhcp/dhcpd.leases) failed: No such file or directory dpkg: error processing package isc-dhcp-server (--configure): installed isc-dhcp-server package post-installation script subprocess returned error exit status 255 Processing triggers for systemd (240-2) ... Errors were encountered while processing: isc-dhcp-server needrestart is being skipped since dpkg has failed E: Sub-process /usr/bin/dpkg returned an error code (1) Disabling copy-on-write on /var/cache/apt/pkgcache.bin This is easily fixed with "touch /var/lib/dhcp/dhcpd.leases" followed by a reinvokation of apt-get: (#) root@master:~ >>> touch /var/lib/dhcp/dhcpd.leases; apt-get install isc-dhcp-server Reading package lists... Done Building dependency tree Reading state information... Done isc-dhcp-server is already the newest version (4.4.1-2). 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 1 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Do you want to continue? [Y/n] y Setting up isc-dhcp-server (4.4.1-2) ... Job for isc-dhcp-server.service failed because the control process exited with error code. See "systemctl status isc-dhcp-server.service" and "journalctl -xe" for details. invoke-rc.d: initscript isc-dhcp-server, action "start" failed. [...expected service startup errors regarding lack of configuration...] -- System Information: Debian Release: buster/sid APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-1-amd64 (SMP w/4 CPU cores) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: SELinux: enabled - Mode: Permissive - Policy name: default Versions of packages isc-dhcp-server depends on: ii debconf [debconf-2.0] 1.5.69 ii debianutils 4.8.6 ii libc6 2.28-2 ii libdns-export1104 1:9.11.5.P1+dfsg-1 ii libirs-export161 1:9.11.5.P1+dfsg-1 ii libisc-export1100 1:9.11.5.P1+dfsg-1 ii lsb-base 10.2018112800 Versions of packages isc-dhcp-server recommends: ii isc-dhcp-common 4.4.1-2 ii policycoreutils 2.8-1 Versions of packages isc-dhcp-server suggests: pn isc-dhcp-server-ldap <none> pn policykit-1 <none> -- debconf information: isc-dhcp-server/interfaces: