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Behnam Rasouli
Asked: 2018-07-08 22:49:32 +0800 CST

ubuntu error : Errors were encountered while processing: redis-server

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I am getting error when I run sudo apt-get upgrade

output error :

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 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] Y
Setting up redis-server (5:4.0.9-1) ...
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

Errors were encountered while processing:
 redis-server
E: Sub-process /usr/bin/dpkg returned an error code (1)

the error about redis-server and can not remove redis-server.

my linux is ubuntu 18 Desktop.

process redis

1 Answers

  1. You should probably alter the redis.conf file to force it to use IPv4 if it supports that mode only and then maybe you could run it without IPv6.

    nano /etc/redis/redis.conf

    Simply remove the ::1 IPv6 loopback address from the bind config option:

    - bind 127.0.0.1 ::1
+ bind 127.0.0.1

    Now redis will not try to use the IPv6 network.

    Try to install again

    apt install redis-server

    Test the Redis Instance Functionality To test that your service is functioning correctly, connect to the Redis server with the command-line client:

    redis-cli

    In the prompt that follows, test connectivity by typing:

    ping You should see:

    $ 127.0.0.1:6379> ping

    Output

    PONG

    Check that you can set keys by typing:

    $ 127.0.0.1:6379> set test "It's working!"

    Output

    OK

    Now, retrieve the value by typing:

    $ 127.0.0.1:6379> get test

    You should be able to retrieve the value we stored:

    Output

    $ 127.0.0.1:6379> "It's working!"

    Exit the Redis prompt to get back to the shell:

    127.0.0.1:6379> exit

    As a final test, let's restart the Redis instance:

    $ sudo systemctl restart redis
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