Comment 9 for bug 1690980

@Brian Murray

I still can reproduce this issue with 0.90ubuntu0.6
$ apt-cache policy unattended-upgrades
unattended-upgrades:
  Installed: 0.90ubuntu0.6
  Candidate: 0.90ubuntu0.6

Please check full log as attached.

Here are reproduction steps:
1. sudo /usr/bin/unattended-upgrade
2. Run the following script.
#!/bin/sh
loop=1
count=0
while [ $loop -gt 0 ]
do
    count=`expr $count + 1`
    echo "loop...$count"
    if [ `grep -r -e "status half-installed linux-headers-4.4.0-78" /var/log/dpkg.log | wc -l` -ge 1 ]; then
        aplay /usr/share/sounds/alsa/Front_Right.wav
        sudo reboot
    fi
    sleep 1
done