Rudder

Hi,

It's currently impossible to remove rudder-agent without a modification of `/var/lib/dpkg/info/rudder-agent.postrm`.

Here without modification:

root@JeremDeb9Test:~# apt-get remove rudder-agent
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libyaml-0-2 net-tools
Use 'apt autoremove' to remove them.
The following packages will be REMOVED:
  rudder-agent
0 upgraded, 0 newly installed, 1 to remove and 9 not upgraded.
After this operation, 33.1 MB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 32074 files and directories currently installed.)
Removing rudder-agent (5.0.0-stretch0) ...
INFO: A back up copy of the /opt/rudder/etc/uuid.hive has been created in /var/backups/rudder
INFO: A back up copy of the /var/rudder/cfengine-community/policy_server.dat has been created in /var/backups/rudder
INFO: A back up copy of the /var/rudder/cfengine-community/ppkeys has been created in /var/backups/rudder
Warning: rudder-agent.service changed on disk. Run 'systemctl daemon-reload' to reload units.
Failed to disable unit: No such file or directory
dpkg: error processing package rudder-agent (--remove):
 subprocess installed post-removal script returned error exit status 1
Errors were encountered while processing:
 rudder-agent
E: Sub-process /usr/bin/dpkg returned an error code (1)

When I comment these 2 lines in the file `/var/lib/dpkg/info/rudder-agent.postrm` everything ok:

systemctl stop rudder-agent
systemctl disable rudder-agent rudder-cf-execd rudder-cf-serverd

With comment:

root@JeremDeb9Test:~# apt-get remove rudder-agent
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libyaml-0-2 net-tools
Use 'apt autoremove' to remove them.
The following packages will be REMOVED:
  rudder-agent
0 upgraded, 0 newly installed, 1 to remove and 9 not upgraded.
1 not fully installed or removed.
After this operation, 33.1 MB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 29178 files and directories currently installed.)
Removing rudder-agent (5.0.0-stretch0) ...

Some information:

root@JeremDeb9Test:~# cat /etc/debian_version
9.5
rudder-agent (5.0.0-stretch0)