Error on install software-properties-common


#1

I ran this command: install software-properties-common

It produced this output:

Setting up mysql-common (5.7.21-0ubuntu0.16.04.1) …
update-alternatives: error: alternative path /etc/mysql/my.cnf.fallback doesn’t exist
dpkg: error processing package mysql-common (–configure):
subprocess installed post-installation script returned error exit status 2
dpkg: dependency problems prevent configuration of mysql-client-5.7:
mysql-client-5.7 depends on mysql-common (>= 5.5); however:
Package mysql-common is not configured yet.

dpkg: error processing package mysql-client-5.7 (–configure):
dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
Errors were encountered while processing:
mysql-common
mysql-client-5.7

My web server is (include version): ubuntu 16.04


#2

This is not related to Let’s Encrypt.


#3

I’am using the tool recomended in the website, how it’s not related?

via https://certbot.eff.org/lets-encrypt/ubuntuxenial-apache


#4

If you cannot even install certbot, your problem cannot be related to letsencrypt.
MySQL is - as far as I know - not a dependency of certbot.


#5

strange, I’m not into linux OS so is kinda confusing why I’am getting this error. Hope someone can give me a direction on solving this


#6

Do you actually need MySQL on this server? If not, you may uninstall it.
I wonder why you get this error while installing software-properties-common, because that package does not seem to depend on MySQL, too:

https://packages.ubuntu.com/trusty/software-properties-common


#7

You are right, mysql have nothing to do with this package. I found that I get this error on other packages too, I did some research and fixed the error. Aparently the software-properties-common was successfuly installed on my first try, beside the error I was getting.

I did this:

I copied /etc/mysql/my.cnf to /etc/mysql/my.cnf.fallback (guessing that this would have been a relatively less important “fallback” config file);


#8

I think something went wrong with the MySQL package before, and now apt tries to fix it every time it’s run to do anything.


#9

yes, that was it! the error had nothing to do with the package I was trying to install, but to ‘error’ did nothing because the package was installed anyway. In my previous reply I explain what I did so solve this unrelated problem. thanks


#10

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