Comment 3 for bug 1843220

pata@pata-pc:~$ sudo apt-get install redis-server
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
  redis-server
0 upgraded, 1 newly installed, 0 to remove and 16 not upgraded.
Need to get 0 B/35,4 kB of archives.
After this operation, 172 kB of additional disk space will be used.
Selecting previously unselected package redis-server.
(Reading database ... 349606 files and directories currently installed.)
Preparing to unpack .../redis-server_5%3a4.0.9-1ubuntu0.2_amd64.deb ...
Unpacking redis-server (5:4.0.9-1ubuntu0.2) ...
Setting up redis-server (5:4.0.9-1ubuntu0.2) ...
dpkg-statoverride: error: user 'redis' does not exist
dpkg: error processing package redis-server (--configure):
 installed redis-server package post-installation script subprocess returned error exit status 2
Processing triggers for systemd (237-3ubuntu10.31) ...
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Processing triggers for ureadahead (0.100.0-21) ...
ureadahead will be reprofiled on next reboot
Errors were encountered while processing:
 redis-server
E: Sub-process /usr/bin/dpkg returned an error code (1)