$ sudo systemctl cat apt-daily apt-daily-upgrade
# /lib/systemd/system/apt-daily.service
[Unit]
Description=Daily apt download activities
Documentation=man:apt(8)
ConditionACPower=true
After=network.target network-online.target systemd-networkd.service NetworkManager.service connman.service
[Service]
Type=oneshot
ExecStartPre=-/usr/lib/apt/apt-helper wait-online
ExecStart=/usr/lib/apt/apt.systemd.daily update
# /lib/systemd/system/apt-daily-upgrade.service
[Unit]
Description=Daily apt upgrade and clean activities
Documentation=man:apt(8)
ConditionACPower=true
After=apt-daily.service
[Service]
Type=oneshot
ExecStart=/usr/lib/apt/apt.systemd.daily install
KillMode=process
TimeoutStopSec=5
jak@jak-x230:~/Projects/Debian/apt:master$ sudo systemctl status apt-daily apt-daily-upgrade
● apt-daily.service - Daily apt download activities
Loaded: loaded (/lib/systemd/system/apt-daily.service; static; vendor preset: enabled)
Active: inactive (dead) since Thu 2017-11-23 16:03:14 CET; 3min 29s ago
Docs: man:apt(8)
Process: 24382 ExecStart=/usr/lib/apt/apt.systemd.daily update (code=exited, status=0/SUCCESS)
Process: 24373 ExecStartPre=/usr/lib/apt/apt-helper wait-online (code=exited, status=0/SUCCESS)
Main PID: 24382 (code=exited, status=0/SUCCESS)
Nov 23 16:03:13 jak-x230 systemd[1]: Starting Daily apt download activities...
Nov 23 16:03:14 jak-x230 systemd[1]: Started Daily apt download activities.
● apt-daily-upgrade.service - Daily apt upgrade and clean activities
Loaded: loaded (/lib/systemd/system/apt-daily-upgrade.service; static; vendor preset: enabled)
Active: failed (Result: signal) since Thu 2017-11-23 16:04:10 CET; 2min 33s ago
Docs: man:apt(8)
Process: 25624 ExecStart=/usr/lib/apt/apt.systemd.daily install (code=killed, signal=TERM)
Main PID: 25624 (code=killed, signal=TERM)
Tasks: 2 (limit: 4915)
CGroup: /system.slice/apt-daily-upgrade.service
├─25629 /bin/sh /usr/lib/apt/apt.systemd.daily lock_is_held install
└─25630 sleep 100000
Nov 23 16:04:03 jak-x230 systemd[1]: Starting Daily apt upgrade and clean activities...
Nov 23 16:04:10 jak-x230 systemd[1]: apt-daily-upgrade.service: Main process exited, code=killed, status=15/TERM
Nov 23 16:04:10 jak-x230 systemd[1]: apt-daily-upgrade.service: Failed with result 'signal'.
Nov 23 16:04:10 jak-x230 systemd[1]: Stopped Daily apt upgrade and clean activities.