Update Loop: mariadb-client-core-10.2 vs. libmariadbclient18

I'm just trying to update my i-MCSP Installation from 1.5.3 Build: 20180516 to Build 20181208.

During this Update the installer always stops because of "unmet dependencies", an now the installatin loop begins:

iMSCP Update Error 1.png

root@srv2:~# apt-get update

Hit:1 http://security.debian.org/debian-security stretch/updates InRelease

Hit:2 http://mirror.netcologne.de/mariadb/repo/10.2/debian stretch InRelease

Hit:3 https://packages.sury.org/php stretch InRelease

Ign:4 http://ftp.us.debian.org/debian stretch InRelease

Hit:5 http://ftp.us.debian.org/debian stretch Release

Reading package lists... Done

root@srv2:~# apt-get upgrade

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.

root@srv2:~# apt update

Hit:1 http://security.debian.org/debian-security stretch/updates InRelease

Hit:2 http://mirror.netcologne.de/mariadb/repo/10.2/debian stretch InRelease

Hit:3 https://packages.sury.org/php stretch InRelease

Ign:4 http://ftp.us.debian.org/debian stretch InRelease

Hit:5 http://ftp.us.debian.org/debian stretch Release

Reading package lists... Done

Building dependency tree

Reading state information... Done

All packages are up to date.

root@srv2:~# apt upgrade

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.

root@srv2:~# apt install mariadb-client-10.2

Reading package lists... Done

Building dependency tree

Reading state information... Done

Recommended packages:

libdbd-mysql-perl libterm-readkey-perl

The following NEW packages will be installed:

mariadb-client-10.2

0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.

Need to get 0 B/1,111 kB of archives.

After this operation, 23.9 MB of additional disk space will be used.

Selecting previously unselected package mariadb-client-10.2.

(Reading database ... 53994 files and directories currently installed.)

Preparing to unpack .../mariadb-client-10.2_10.2.30+maria~stretch_amd64.deb ...

Unpacking mariadb-client-10.2 (10.2.30+maria~stretch) ...

Processing triggers for man-db (2.7.6.1-2) ...

Setting up mariadb-client-10.2 (10.2.30+maria~stretch) ...

root@srv2:~/i-MSCP-imscp-19f9902# perl imscp-autoinstall -d

iMSCP Update Error 2.png

root@srv2:~# apt install libmariadb3

Reading package lists... Done

Building dependency tree

Reading state information... Done

libmariadb3 is already the newest version (10.2.30+maria~stretch).

libmariadb3 set to manually installed.

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

root@srv2:~# apt install libmariadbclient18

Reading package lists... Done

Building dependency tree

Reading state information... Done

The following package was automatically installed and is no longer required:

libreadline5

Use 'apt autoremove' to remove it.

The following packages will be REMOVED:

libmariadb3 mariadb-client-10.2 mariadb-client-core-10.2

The following NEW packages will be installed:

libmariadbclient18

0 upgraded, 1 newly installed, 3 to remove and 0 not upgraded.

Need to get 0 B/782 kB of archives.

After this operation, 28.0 MB disk space will be freed.

Do you want to continue? [Y/n] y

(Reading database ... 54030 files and directories currently installed.)

Removing mariadb-client-10.2 (10.2.30+maria~stretch) ...

Removing mariadb-client-core-10.2 (10.2.30+maria~stretch) ...

Removing libmariadb3 (10.2.30+maria~stretch) ...

Selecting previously unselected package libmariadbclient18:amd64.

(Reading database ... 53976 files and directories currently installed.)

Preparing to unpack .../libmariadbclient18_10.1.41-0+deb9u1_amd64.deb ...

Unpacking libmariadbclient18:amd64 (10.1.41-0+deb9u1) ...

Setting up libmariadbclient18:amd64 (10.1.41-0+deb9u1) ...

Processing triggers for libc-bin (2.24-11+deb9u4) ...

Processing triggers for man-db (2.7.6.1-2) ...

root@srv2:~/i-MSCP-imscp-19f9902# perl imscp-autoinstall -d

iMSCP Update Error 1.png

Does anyone has a great idea how to solve this issue?

I just recognized that even dovecot-mysql is not longer installed and I cannot reinstall it because of the missing libmariadbclient18 and so no eMail transmission is possible

Interesting Problem... Trying to solve the problem I recognized that more and more problems occurred wihle (re)installing related packages. so I bricked my Server installation an had to hard-reinstall the whole vServer.

BUT up to yesterday the installation with MariaDB 10.2 worked fine, today I was even able to install iMSCP with 10.2 but installation with 10.1 worked fine.