Verified 1.1ubuntu1.18.04.7~16.04.2 on Xenial, now without acpdid: ubuntu@ip-172-31-3-29:~$ sudo service apt-daily-upgrade start & sleep 1; tail -f /var/log/unattended-upgrades/unattended-upgrades.log [1] 1607 2019-04-09 20:58:27,975 INFO Initial blacklisted packages: 2019-04-09 20:58:27,975 INFO Initial whitelisted packages: 2019-04-09 20:58:27,975 INFO Starting unattended upgrades script 2019-04-09 20:58:27,975 INFO Allowed origins are: o=Ubuntu,a=xenial, o=Ubuntu,a=xenial-security, o=UbuntuESM,a=xenial 2019-04-09 20:58:31,986 INFO Packages that will be upgraded: busybox-initramfs busybox-static file libmagic1 libpam-systemd libpolkit-agent-1-0 libpolkit-backend-1-0 libpolkit-gobject-1-0 libsystemd0 libudev1 linux-aws linux-headers-aws linux-image-aws ntfs-3g policykit-1 snapd systemd systemd-sysv ubuntu-core-launcher udev wget 2019-04-09 20:58:31,987 INFO Writing dpkg log to /var/log/unattended-upgrades/unattended-upgrades-dpkg.log 2019-04-09 20:58:49,942 WARNING SIGTERM received, will stop 2019-04-09 20:58:52,944 WARNING SIGTERM received, will stop 2019-04-09 20:58:53,159 WARNING SIGNAL received, stopping ubuntu@ip-172-31-3-29:~$ cat /var/log/unattended-upgrades/unattended-upgrades-dpkg.log . Log started: 2019-04-09 20:58:35 (Reading database ... 76460 files and directories currently installed.) Preparing to unpack .../libpolkit-gobject-1-0_0.105-14.1ubuntu0.5_amd64.deb ... Unpacking libpolkit-gobject-1-0:amd64 (0.105-14.1ubuntu0.5) over (0.105-14.1ubuntu0.4) ... Processing triggers for libc-bin (2.23-0ubuntu11) ... Setting up libpolkit-gobject-1-0:amd64 (0.105-14.1ubuntu0.5) ... Processing triggers for libc-bin (2.23-0ubuntu11) ... Log ended: 2019-04-09 20:58:37 ... ubuntu@ip-172-31-3-29:~$ dpkg -l unattended-upgrades | cat Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-===================-==========================-============-=========================================== ii unattended-upgrades 1.1ubuntu1.18.04.7~16.04.2 all automatic installation of security upgrades ubuntu@ip-172-31-3-29:~$ yes no | sudo apt upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done The following NEW packages will be installed: linux-aws-headers-4.4.0-1079 linux-headers-4.4.0-1079-aws linux-image-4.4.0-1079-aws linux-modules-4.4.0-1079-aws The following packages will be upgraded: apt apt-transport-https apt-utils cloud-init distro-info-data file grub-common grub-legacy-ec2 grub-pc grub-pc-bin grub2-common libapt-inst2.0 libapt-pkg5.0 liblxc1 libmagic1 libpam-systemd libsystemd0 libudev1 linux-aws linux-headers-aws linux-image-aws login lxc-common ntfs-3g passwd policykit-1 python-apt-common python3-apt rsyslog snapd systemd systemd-sysv ubuntu-core-launcher udev uidmap 35 upgraded, 4 newly installed, 0 to remove and 0 not upgraded. Need to get 0 B/54.7 MB of archives. After this operation, 118 MB of additional disk space will be used. Do you want to continue? [Y/n] Abort. ubuntu@ip-172-31-3-29:~$ dpkg -l acpid Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-======================-================-================-================================================== rc acpid 1:2.0.26-1ubuntu amd64 Advanced Configuration and Power Interface event d ubuntu@ip-172-31-3-29:~$ journalctl -a ... Apr 09 20:58:49 ip-172-31-3-29 kernel: PM: Hibernation mode set to 'platform' Apr 09 20:58:53 ip-172-31-3-29 systemd[1]: Started Daily apt upgrade and clean activities. Apr 09 20:58:53 ip-172-31-3-29 sudo[1607]: pam_unix(sudo:session): session closed for user root Apr 09 20:58:55 ip-172-31-3-29 systemd-sleep[8427]: Suspending system... Apr 09 20:59:46 ip-172-31-3-29 kernel: PM: Syncing filesystems ... done. Apr 09 20:59:46 ip-172-31-3-29 kernel: Freezing user space processes ... (elapsed 0.000 seconds) done. ...