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.
1 Answer
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
