It doesn't relate to "/usr/share/unattended-upgrades/unattended-upgrade-
shutdown" file at all. When you "fix" it - it just fails because of the
invalid python syntax. And shutdown just works.
The real problem is systemd dependencies. Here is the log of the shutdown
process:
Unattended upgrades should be started before filesystem unmount, but it starts
after unmount:
[ OK ] Unmounted /home.
[ OK ] Stopped File System Check on /dev/mapper/VG-home.
[ OK ] Unmounted /var.
[ OK ] Stopped File System Check on /dev/mapper/VG-var.
[ OK ] Unmounted /boot.
[ OK ] Stopped File System Check on /dev/mapper/VG-boot.
[ OK ] Removed slice system-systemd\x2dfsck.slice.
[ OK ] Stopped Login to default iSCSI targets.
Stopping iSCSI initiator daemon (iscsid)...
[ OK ] Stopped iSCSI initiator daemon (iscsid).
[ OK ] Stopped target Network is Online.
[ OK ] Stopped target Network.
[ OK ] Stopped Initial cloud-init job (metadata service crawler).
Stopping Raise network interfaces...
[ OK ] Stopped Raise network interfaces.
[ OK ] Stopped target Local File Systems.
Unmounting /run/user/1000...
Starting Unattended Upgrades Shutdown...
[ OK ] Stopped Apply Kernel Variables.
[ OK ] Stopped target Network (Pre).
[ OK ] Stopped Initial cloud-init job (pre-networking).
[ OK ] Stopped Load Kernel Modules.
[ OK ] Unmounted /run/user/1000.
[ OK ] Reached target Unmount All Filesystems.
[ OK ] Stopped target Local File Systems (Pre).
[ OK ] Stopped Create Static Device Nodes in /dev.
Stopping Monitoring of LVM2 mirrors... dmeventd or progress polling...
[ OK ] Stopped Remount Root and Kernel File Systems.
[ OK ] Stopped Monitoring of LVM2 mirrors,...ng dmeventd or progress polling.
Stopping LVM2 metadata daemon...
[ OK ] Stopped LVM2 metadata daemon.
And it is reproducible with LVM only. Have to spend some time on investigation.
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Touch seeded packages, which is subscribed to unattended-upgrades in
Ubuntu.
https://bugs.launchpad.net/bugs/1661611
Title:
apt/unattended-upgrades stalls shutdown
Status in unattended-upgrades package in Ubuntu:
Confirmed
Bug description:
When unattended-upgrades is installed, 9 out of 10 shutdowns/reboots
hang while "starting unattended upgrades shutdown". This hang stalls
the shutdown process for 5-10 mins.
If I disable unnattended-upgrades via the /etc/apt/apt.conf.d/20auto-
upgrades and/or 50unattended-upgrades, the problems occurs.
If I terminate the service before shutdown/reboot (sudo service
unattended-upgrades stop) the problem still occurs.
If I remove the package (sudo apt remove unattended-upgrades) the
problem no longer occurs.
This occurs on a freshly installed version of Ubuntu Server 16.04.1
(both unattended-upgrades installed via install GUI or manual install
of unattended-upgrades)
Both Kern.log & syslog do not show the shutdown process (I believe
because the filesystems have already unmounted)
Original report: http://askubuntu.com/questions/878630/apt-unattended-
upgrades-stalls-shutdown
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/unattended-upgrades/+bug/1661611/+subscriptions
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