Ubuntu upgrade failed 14.04 -> 16.04 (pptpd)

[Taner Halicioglu]

I don't think this matches the ones that search turned up.

I was upgrading a Linode VM from 14.04 to 16.04 (do-release-upgrade), and after seeming to upgrade everything(?), it spat this out at the end:

==================================================================================
Errors were encountered while processing:
 pptpd
Error in function:

A fatal error occurred

Please report this as a bug and include the files
/var/log/dist-upgrade/main.log and /var/log/dist-upgrade/apt.log in
your report. The upgrade has aborted.
Your original sources.list was saved in
/etc/apt/sources.list.distUpgrade.

SystemError: E:Sub-process /usr/bin/dpkg returned an error code (1)

Could not install the upgrades

The upgrade has aborted. Your system could be in an unusable state. A
recovery will run now (dpkg --configure -a).

Please report this bug in a browser at
http://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+filebug
and attach the files in /var/log/dist-upgrade/ to the bug report.
installArchives() failed

Setting up pptpd (1.4.0-7ubuntu0.1) ...
Failed to restart systemd-modules-load.service: No such method 'RestartUnit'
See system logs and 'systemctl status systemd-modules-load.service' for details.
dpkg: error processing package pptpd (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 pptpd

Upgrade complete

The upgrade has completed but there were errors during the upgrade
process.
==================================================================================

Scrolling back up in teh screen session, I see that same set of lines:

==================================================================================
Setting up pptpd (1.4.0-7ubuntu0.1) ...
Failed to restart systemd-modules-load.service: No such method 'RestartUnit'
See system logs and 'systemctl status systemd-modules-load.service' for details.
dpkg: error processing package pptpd (--configure):
 subprocess installed post-installation script returned error exit status 1
==================================================================================

That seems to be the only thing that spat out any sort of error.

I will attempt to see what happens after reboot. (Worst case, I will restore from the snapshot I took just before the upgrade attempt)

[Taner Halicioglu (tanerh)]

FYI - reboot came up just fine.

WHen I try to 'apt-get install pptpd', I get the same error:

====================================================================================
# apt-get install pptpd
Reading package lists... Done
Building dependency tree
Reading state information... Done
pptpd is already the newest version (1.4.0-7ubuntu0.1).
0 upgraded, 0 newly installed, 0 to remove and 1 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]
Setting up pptpd (1.4.0-7ubuntu0.1) ...
Job for systemd-modules-load.service failed because the control process exited with error code. See "systemctl status systemd-modules-load.service" and "journalctl -xe" for details.
dpkg: error processing package pptpd (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 pptpd
E: Sub-process /usr/bin/dpkg returned an error code (1)
====================================================================================

[Taner Halicioglu (tanerh)]

More from syslog:

(my machine is called 'devnull' :) )

====================================================================================
Aug 22 21:50:04 devnull [daemon ] systemd[1]: Started Update UTMP about System Runlevel Changes.
Aug 22 21:50:04 devnull [daemon ] systemd[1]: Startup finished in 1.995s (kernel) + 3min 47.538s (userspace) = 3min 49.533s.
Aug 22 21:51:09 devnull [daemon ] systemd[1]: Reloading.
Aug 22 21:51:09 devnull [daemon ] systemd[1]: Stopped PoPToP Point to Point Tunneling Server.
Aug 22 21:51:09 devnull [daemon ] systemd[1]: Reloading.
Aug 22 21:51:17 devnull [daemon ] systemd[1]: message repeated 2 times: [ Reloading.]
Aug 22 21:51:18 devnull [daemon ] systemd[1]: Stopped Load Kernel Modules.
Aug 22 21:51:18 devnull [daemon ] systemd[1]: Starting Load Kernel Modules...
Aug 22 21:51:18 devnull [daemon ] systemd-modules-load[6462]: could not open moddep file '/lib/modules/4.6.3-x86_64-linode70/modules.dep.bin'
Aug 22 21:51:18 devnull [daemon ] systemd-modules-load[6462]: Failed to lookup alias 'loop': Function not implemented
Aug 22 21:51:18 devnull [daemon ] systemd-modules-load[6462]: could not open moddep file '/lib/modules/4.6.3-x86_64-linode70/modules.dep.bin'
Aug 22 21:51:18 devnull [daemon ] systemd-modules-load[6462]: Failed to lookup alias 'lp': Function not implemented
Aug 22 21:51:18 devnull [daemon ] systemd-modules-load[6462]: could not open moddep file '/lib/modules/4.6.3-x86_64-linode70/modules.dep.bin'
Aug 22 21:51:18 devnull [daemon ] systemd-modules-load[6462]: Failed to lookup alias 'nf_nat_pptp': Function not implemented
Aug 22 21:51:18 devnull [daemon ] systemd[1]: systemd-modules-load.service: Main process exited, code=exited, status=1/FAILURE
Aug 22 21:51:18 devnull [daemon ] systemd[1]: Failed to start Load Kernel Modules.
Aug 22 21:51:18 devnull [daemon ] systemd[1]: systemd-modules-load.service: Unit entered failed state.
Aug 22 21:51:18 devnull [daemon ] systemd[1]: systemd-modules-load.service: Failed with result 'exit-code'.
====================================================================================

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[codywohlers (codywohlers)]

This is fixed in pptpd 1.4.0-9
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=829418

I just downloaded 1.4.0-10 from the yakkety repo at http://packages.ubuntu.com/yakkety/amd64/pptpd/download and installed it using dpkg. Once the xenial repo is updated this issue will be resolved.