installation fails on Ubuntu 19.10

apt -y install mariadb-server

Reading package lists... Done

Building dependency tree       

Reading state information... Done

The following additional packages will be installed:

  galera-4 libcgi-fast-perl libcgi-pm-perl libdbd-mysql-perl libdbi-perl libencode-locale-perl libfcgi-perl libhtml-parser-perl libhtml-tagset-perl

  libhtml-template-perl libhttp-date-perl libhttp-message-perl libio-html-perl liblwp-mediatypes-perl libmariadb3 libmysqlclient21 libterm-readkey-perl libtimedate-perl

  liburi-perl mariadb-client-10.4 mariadb-client-core-10.4 mariadb-common mariadb-server-10.4 mariadb-server-core-10.4 mysql-common socat

Suggested packages:

  libclone-perl libmldbm-perl libnet-daemon-perl libsql-statement-perl libdata-dump-perl libipc-sharedcache-perl libwww-perl mailx mariadb-test tinyca

The following NEW packages will be installed:

  galera-4 libcgi-fast-perl libcgi-pm-perl libdbd-mysql-perl libdbi-perl libencode-locale-perl libfcgi-perl libhtml-parser-perl libhtml-tagset-perl

  libhtml-template-perl libhttp-date-perl libhttp-message-perl libio-html-perl liblwp-mediatypes-perl libmariadb3 libmysqlclient21 libterm-readkey-perl libtimedate-perl

  liburi-perl mariadb-client-10.4 mariadb-client-core-10.4 mariadb-common mariadb-server mariadb-server-10.4 mariadb-server-core-10.4 mysql-common socat

0 upgraded, 27 newly installed, 0 to remove and 0 not upgraded.

Need to get 0 B/28.6 MB of archives.

After this operation, 224 MB of additional disk space will be used.

Preconfiguring packages ...

Selecting previously unselected package mysql-common.

(Reading database ... 113568 files and directories currently installed.)

Preparing to unpack .../0-mysql-common_1%3a10.4.12+maria~eoan_all.deb ...

Unpacking mysql-common (1:10.4.12+maria~eoan) ...

Selecting previously unselected package mariadb-common.

Preparing to unpack .../1-mariadb-common_1%3a10.4.12+maria~eoan_all.deb ...

Unpacking mariadb-common (1:10.4.12+maria~eoan) ...

Selecting previously unselected package galera-4.

Preparing to unpack .../2-galera-4_26.4.3-eoan_amd64.deb ...

Unpacking galera-4 (26.4.3-eoan) ...

Selecting previously unselected package libdbi-perl:amd64.

Preparing to unpack .../3-libdbi-perl_1.642-1_amd64.deb ...

Unpacking libdbi-perl:amd64 (1.642-1) ...

Selecting previously unselected package libmariadb3:amd64.

Preparing to unpack .../4-libmariadb3_1%3a10.4.12+maria~eoan_amd64.deb ...

Unpacking libmariadb3:amd64 (1:10.4.12+maria~eoan) ...

Selecting previously unselected package mariadb-client-core-10.4.

Preparing to unpack .../5-mariadb-client-core-10.4_1%3a10.4.12+maria~eoan_amd64.deb ...

Unpacking mariadb-client-core-10.4 (1:10.4.12+maria~eoan) ...

Selecting previously unselected package mariadb-client-10.4.

Preparing to unpack .../6-mariadb-client-10.4_1%3a10.4.12+maria~eoan_amd64.deb ...

Unpacking mariadb-client-10.4 (1:10.4.12+maria~eoan) ...

Selecting previously unselected package mariadb-server-core-10.4.

Preparing to unpack .../7-mariadb-server-core-10.4_1%3a10.4.12+maria~eoan_amd64.deb ...

Unpacking mariadb-server-core-10.4 (1:10.4.12+maria~eoan) ...

Selecting previously unselected package socat.

Preparing to unpack .../8-socat_1.7.3.2-2ubuntu3_amd64.deb ...

Unpacking socat (1.7.3.2-2ubuntu3) ...

Setting up mysql-common (1:10.4.12+maria~eoan) ...

Setting up mariadb-common (1:10.4.12+maria~eoan) ...

(Reading database ... 113958 files and directories currently installed.)

Preparing to unpack .../00-mariadb-server-10.4_1%3a10.4.12+maria~eoan_amd64.deb ...

Failed to stop mysql.service: Unit mysql.service not loaded.

'systemctl stop mysql' returned 5

There is a MySQL server running, but we failed in our attempts to stop it.

Stop it yourself and try again!

dpkg: error processing archive /tmp/apt-dpkg-install-jrBfdt/00-mariadb-server-10.4_1%3a10.4.12+maria~eoan_amd64.deb (--unpack):

 new mariadb-server-10.4 package pre-installation script subprocess returned error exit status 1

Selecting previously unselected package libhtml-tagset-perl.

Preparing to unpack .../01-libhtml-tagset-perl_3.20-3_all.deb ...

Unpacking libhtml-tagset-perl (3.20-3) ...

Selecting previously unselected package liburi-perl.

Preparing to unpack .../02-liburi-perl_1.76-1_all.deb ...

Unpacking liburi-perl (1.76-1) ...

Selecting previously unselected package libhtml-parser-perl.

Preparing to unpack .../03-libhtml-parser-perl_3.72-3build2_amd64.deb ...

Unpacking libhtml-parser-perl (3.72-3build2) ...

Selecting previously unselected package libcgi-pm-perl.

Preparing to unpack .../04-libcgi-pm-perl_4.44-1_all.deb ...

Unpacking libcgi-pm-perl (4.44-1) ...

Selecting previously unselected package libfcgi-perl.

Preparing to unpack .../05-libfcgi-perl_0.78-2build2_amd64.deb ...

Unpacking libfcgi-perl (0.78-2build2) ...

Selecting previously unselected package libcgi-fast-perl.

Preparing to unpack .../06-libcgi-fast-perl_1%3a2.15-1_all.deb ...

Unpacking libcgi-fast-perl (1:2.15-1) ...

Selecting previously unselected package libmysqlclient21:amd64.

Preparing to unpack .../07-libmysqlclient21_8.0.19-0ubuntu0.19.10.3_amd64.deb ...

Unpacking libmysqlclient21:amd64 (8.0.19-0ubuntu0.19.10.3) ...

Selecting previously unselected package libdbd-mysql-perl:amd64.

Preparing to unpack .../08-libdbd-mysql-perl_4.050-2build1_amd64.deb ...

Unpacking libdbd-mysql-perl:amd64 (4.050-2build1) ...

Selecting previously unselected package libencode-locale-perl.

Preparing to unpack .../09-libencode-locale-perl_1.05-1_all.deb ...

Unpacking libencode-locale-perl (1.05-1) ...

Selecting previously unselected package libhtml-template-perl.

Preparing to unpack .../10-libhtml-template-perl_2.97-1_all.deb ...

Unpacking libhtml-template-perl (2.97-1) ...

Selecting previously unselected package libtimedate-perl.

Preparing to unpack .../11-libtimedate-perl_2.3000-2_all.deb ...

Unpacking libtimedate-perl (2.3000-2) ...

Selecting previously unselected package libhttp-date-perl.

Preparing to unpack .../12-libhttp-date-perl_6.02-1_all.deb ...

Unpacking libhttp-date-perl (6.02-1) ...

Selecting previously unselected package libio-html-perl.

Preparing to unpack .../13-libio-html-perl_1.001-1_all.deb ...

Unpacking libio-html-perl (1.001-1) ...

Selecting previously unselected package liblwp-mediatypes-perl.

Preparing to unpack .../14-liblwp-mediatypes-perl_6.04-1_all.deb ...

Unpacking liblwp-mediatypes-perl (6.04-1) ...

Selecting previously unselected package libhttp-message-perl.

Preparing to unpack .../15-libhttp-message-perl_6.18-1_all.deb ...

Unpacking libhttp-message-perl (6.18-1) ...

Selecting previously unselected package libterm-readkey-perl.

Preparing to unpack .../16-libterm-readkey-perl_2.38-1_amd64.deb ...

Unpacking libterm-readkey-perl (2.38-1) ...

Selecting previously unselected package mariadb-server.

Preparing to unpack .../17-mariadb-server_1%3a10.4.12+maria~eoan_all.deb ...

Unpacking mariadb-server (1:10.4.12+maria~eoan) ...

Errors were encountered while processing:

 /tmp/apt-dpkg-install-jrBfdt/00-mariadb-server-10.4_1%3a10.4.12+maria~eoan_amd64.deb

E: Sub-process /usr/bin/dpkg returned an error code (1)