Installing mytop un Ubuntu 18.04.1 LTS uninstalls MariaDB

[Igor Benko]

This is the output of the "apt install mytop":
```
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  galera-3 libaio1 mariadb-client-core-10.1 mariadb-common mariadb-server-core-10.1 socat
Use 'apt autoremove' to remove them.
The following packages will be REMOVED:
  mariadb-client-10.1 mariadb-server mariadb-server-10.1
The following NEW packages will be installed:
  mytop
0 upgraded, 1 newly installed, 3 to remove and 127 not upgraded.
Need to get 31.1 kB of archives.
After this operation, 121 MB disk space will be freed.
Do you want to continue? [Y/n]
```

Package version:
```
mytop:
  Installed: (none)
  Candidate: 1.9.1-4
  Version table:
     1.9.1-4 500
        500 http://archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
```

Expected result: mytop package is installed

What happened instead: MariaDB was uninstalled

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Michael Ramsey (meramsey)]

this also affects Ubuntu 20.x

```
root@li45-90:~# apt-get install -y mytop
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  galera-4 libcgi-fast-perl libcgi-pm-perl libdbd-mariadb-perl libfcgi-perl libhtml-template-perl libmariadb3 libpmem1 mariadb-client-core-10.6 mariadb-common mariadb-server-core-10.6
  socat
Use 'apt autoremove' to remove them.
The following additional packages will be installed:
  libconfig-inifiles-perl libdbd-mysql-perl
The following packages will be REMOVED:
  mariadb-client mariadb-client-10.6 mariadb-server mariadb-server-10.6
The following NEW packages will be installed:
  libconfig-inifiles-perl libdbd-mysql-perl mytop
0 upgraded, 3 newly installed, 4 to remove and 44 not upgraded.
Need to get 155 kB of archives.
After this operation, 96.6 MB disk space will be freed.
Get:1 http://mirrors.linode.com/ubuntu focal/universe amd64 libdbd-mysql-perl amd64 4.050-3 [82.8 kB]
Get:2 http://mirrors.linode.com/ubuntu focal/main amd64 libconfig-inifiles-perl all 3.000002-1 [40.6 kB]
Get:3 http://mirrors.linode.com/ubuntu focal/universe amd64 mytop all 1.9.1-4 [31.1 kB]
Fetched 155 kB in 0s (5,743 kB/s)
(Reading database ... 127585 files and directories currently installed.)
Removing mariadb-client (1:10.6.5+maria~focal) ...
Removing mariadb-server (1:10.6.5+maria~focal) ...
Removing mariadb-server-10.6 (1:10.6.5+maria~focal) ...
Removing mariadb-client-10.6 (1:10.6.5+maria~focal) ...
^CW: Operation was interrupted before it could finish
W: APT had planned for dpkg to do more than it reported back (8 vs 21).
   Affected packages: libconfig-inifiles-perl:amd64 libdbd-mysql-perl:amd64 mytop:amd64
E: Problem executing scripts DPkg::Post-Invoke 'bash /usr/local/bin/wp-status 2>/dev/null || true '
E: Sub-process returned an error code
root@li45-90:~# apt install -y mariadb-client mariadb-server
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
  mariadb-client-10.6 mariadb-server-10.6
Suggested packages:
  mailx mariadb-test
The following NEW packages will be installed:
  mariadb-client mariadb-client-10.6 mariadb-server mariadb-server-10.6
0 upgraded, 4 newly installed, 0 to remove and 44 not upgraded.
Need to get 0 B/5,711 kB of archives.
After this operation, 97.1 MB of additional disk space will be used.
Preconfiguring packages ...
Selecting previously unselected package mariadb-client-10.6.
(Reading database ... 127377 files and directories currently installed.)
Preparing to unpack .../mariadb-client-10.6_1%3a10.6.5+maria~focal_amd64.deb ...
Unpacking mariadb-client-10.6 (1:10.6.5+maria~focal) ...
Selecting previously unselected package mariadb-server-10.6.
Preparing to unpack .../mariadb-server-10.6_1%3a10.6.5+maria~focal_amd64.deb ...
/var/lib/mysql: found previous version 10.6
Unpacking mariadb-server-10.6 (1:10.6.5+maria~focal) ...
Selecting previously unselected package mariadb-client.
Preparing to unpack .../mariadb-client_1%3a10.6.5+maria~focal_all.deb ...
Unpacking mariadb-client (1:10.6.5+mar...

[twowheeler (cdhassell)]

Confirming same result on 21.10. I installed the deb without looking closely at the output, and it immediately downed my server by uninstalling mariadb. WTF! When mytop is compiled from source, it runs without a problem.

[Vladimir (francofunghi)]

Same issue Ubuntu 22