package pptpd 1.4.0-7ubuntu0.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

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

From log:

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

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.

@codywohlers Cody, is fixed released the right status for this bug if it is breaking an LTS upgrade? Should this bug maybe not be fixed released so it can be fixed in Xenial for a smooth LTS upgrade?

@erik-b-andersen+azendale Good question. But I think that would be a bug/issue with updating the xenial repo with the newer package, and not an issue with pptpd itself.

I see there's a "Fix Committed" status (Fixed, but not available until next release.) but I can't seem to change it now...

I am nominating this for Xenial. As previously suggested this should be fixed there and has been reported in other bugs in Xenial to help ease upgrade.

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

Please find a debdiff that backports the Debian fix for this issue.

Uploaded to the queue

Hello Christian, or anyone else affected,

Accepted pptpd into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/pptpd/1.4.0-7ubuntu0.2 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed.Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested and change the tag from verification-needed-xenial to verification-done-xenial. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-xenial. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

Hello Łukasz,

thanks for your help! As you suggested I enabled -proposed and I am able to install pptpd 1.4.0-7ubuntu0.2. However when I set up a Trusty container and I tried to install pptpd I got following Warning and Error

"Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libfreetype6 os-prober
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  bcrelay
The following NEW packages will be installed:
  bcrelay pptpd
0 upgraded, 2 newly installed, 0 to remove and 2 not upgraded.
Need to get 87.9 kB of archives.
After this operation, 364 kB of additional disk space will be used.
WARNING: The following packages cannot be authenticated!
  bcrelay pptpd
E: There are problems and -y was used without --force-yes"

Is this helpful? What should I do next?

Christian, my reproduction steps were wrong, "do-release-upgrade --proposed" in a Trusty container won't work because this will only pull the upgrader from xenial-proposed and not pptpd. As such, there is no easy way to do a test release upgrade but you can fix a broken upgrade by installing 1.4.0-7ubuntu0.2 from xenial-proposed. Lastly, the unauthenticated warning from your Trusty container seems to be unrelated, try refreshing your indexes (apt-get update) and see if that helps.

Christian, I finally found how to properly test the upgrade with the -proposed package (see the updated test case).

Marking as verified:

# grep pptpd /var/log/dist-upgrade/screenlog.0
Get:434 http://archive.ubuntu.com/ubuntu/ xenial-proposed/main pptpd amd64 1.4.0-7ubuntu0.2 [74.5 kB]
Get:435 http://archive.ubuntu.com/ubuntu/ xenial/main python-chardet all 2.3.0-2 [96.3 kB]
Preparing to unpack .../pptpd_1.4.0-7ubuntu0.2_amd64.deb ...
Unpacking pptpd (1.4.0-7ubuntu0.2) over (1.3.4+27+gddb30f8-1ubuntu1.1) ...
Setting up pptpd (1.4.0-7ubuntu0.2) ...

Simon, thank you! I can confirm the fix is working for me too. Just to let you know:
chmod 777 /var/run/screen should be 775

Christian, thanks for testing as well. As for the screen socket mode, do-release-upgrade asks for 777 and 775 it didn't work when I tried it (see https://paste.ubuntu.com/25165428/). Thanks again.

This bug was fixed in the package pptpd - 1.4.0-7ubuntu0.2

---------------
pptpd (1.4.0-7ubuntu0.2) xenial; urgency=medium

  * Backport "Fix systemd check in postinst." from 1.4.0-9
    fixed via Debian bug 829418 (LP: #1610500)

 -- Simon Deziel <email address hidden> Wed, 28 Jun 2017 17:44:00 +0000

The verification of the Stable Release Update for pptpd has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

The attachment "lp1610500.debdiff" seems to be a debdiff. The ubuntu-sponsors team has been subscribed to the bug report so that they can review and hopefully sponsor the debdiff. If the attachment isn't a patch, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are member of the ~ubuntu-sponsors, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issue please contact him.]

I don't see anything left to sponsor here - removing ubuntu-sponsors.