A similar question was asked at Partial upgrade - why remove MariaDB?. The answer to that question basically was stating that dist-upgrade is the issue. This question is asking if there is some workaround (or fix).

Sometimes it is necessary to do a dist-upgrade and not just an upgrade.

Can we change something in our sources.list (or elsewhere) to tell Ubuntu to NOT remove MariaDB?

marc@db01:~$ dpkg --get-selections | grep mysql

libdbd-mysql-perl    install

libmysqlclient18     install

mysql-common     install



marc@db01:~$ dpkg --get-selections | grep maria

libmariadbclient18 install

mariadb-client-10.0 deinstall

mariadb-client-5.5 install

mariadb-client-core-5.5 install

mariadb-common install

mariadb-server install

mariadb-server-10.0 deinstall

mariadb-server-5.5 install

mariadb-server-core-5.5 install



marc@db01:~$ sudo apt-get check

Reading package lists... Done

Building dependency tree

Reading state information... Done



marc@db01:~$ dpkg --list | grep mysql

ii libdbd-mysql-perl 4.020-1build2 Perl5 database interface to the MySQL database

ii libmysqlclient18 5.5.34+maria-1~precise Virtual package to satisfy external depends

ii mariadb-common 5.5.34+maria-1~precise MariaDB database common files (e.g. /etc/mysql/conf.d/mariadb.cnf)

ii mysql-common 5.5.34+maria-1~precise MariaDB database common files (e.g. /etc/mysql/my.cnf)



marc@db01:~$ sudo apt-get dist-upgrade -o Debug::pkgProblemResolver=true -o Debug::pkgProblemResolver::ShowScores=true 

Reading package lists... Done

Building dependency tree       

Reading state information... Done

Calculating upgrade... Starting

Settings used to calculate pkgProblemResolver::Scores::

  Important => 3

  Required => 2

  Standard => 1

  Optional => -1

  Extra => -2

  Essentials => 100

  InstalledAndNotObsolete => 1

  Depends => 1

  Recommends => 1

  AddProtected => 10000

  AddEssential => 5000

Show Scores

10000 linux-image-3.8.0-29-generic [ amd64 ] < 3.8.0-29.42~precise1 > ( kernel )

6306 dpkg [ amd64 ] < 1.16.1.2ubuntu7.2 > ( admin )

5409 libc-bin [ amd64 ] < 2.15-0ubuntu10.5 > ( libs )

5371 debianutils [ amd64 ] < 4.2.1ubuntu2 > ( utils )

53 libsqlite3-0 [ amd64 ] < 3.7.9-2ubuntu1.1 > ( libs )

10 mariadb-common [ amd64 ] < 5.5.34+maria-1~precise > ( database )

8 mysql-common [ amd64 ] < 5.5.34+maria-1~precise -> 5.5.35-0ubuntu0.12.04.1 > (database )

6 libmariadbclient18 [ amd64 ] < 5.5.34+maria-1~precise > ( libs )

6 libmysqlclient18 [ amd64 ] < 5.5.34+maria-1~precise -> 5.5.35-0ubuntu0.12.04.1 > ( libs )

2 mariadb-client-5.5 [ amd64 ] < 5.5.34+maria-1~precise > ( misc )

2 mariadb-server-core-5.5 [ amd64 ] < 5.5.34+maria-1~precise > ( misc )

2 mariadb-client-core-5.5 [ amd64 ] < 5.5.34+maria-1~precise > ( misc )

1 mariadb-server-5.5 [ amd64 ] < 5.5.34+maria-1~precise > ( misc )

Starting 2

Investigating (0) mysql-common [ amd64 ] < 5.5.34+maria-1~precise -> 5.5.35-0ubuntu0.12.04.1 > ( database )

Broken mysql-common:amd64 Breaks on mysql-client-5.1 [ amd64 ] < none > ( none )

  Conflicts//Breaks against version 10.0.7+maria-1~precise for mariadb-client-10.0 but that is not InstVer, ignoring

  Considering mariadb-client-5.5:amd64 2 as a solution to mysql-common:amd64 8

  Added mariadb-client-5.5:amd64 to the remove list

Broken mysql-common:amd64 Breaks on mysql-client-core-5.1 [ amd64 ] < none > ( none )

  Considering mariadb-client-core-5.5:amd64 2 as a solution to mysql-common:amd64 8

  Added mariadb-client-core-5.5:amd64 to the remove list

Broken mysql-common:amd64 Breaks on mysql-server-core-5.1 [ amd64 ] < none > ( none )

  Considering mariadb-server-core-5.5:amd64 2 as a solution to mysql-common:amd64 8

  Added mariadb-server-core-5.5:amd64 to the remove list

  Conflicts//Breaks against version 5.5.34+maria-1~precise for mariadb-galera-server-5.5 but that is not InstVer, ignoring

  Fixing mysql-common:amd64 via remove of mariadb-client-5.5:amd64

  Fixing mysql-common:amd64 via remove of mariadb-client-core-5.5:amd64

  Fixing mysql-common:amd64 via remove of mariadb-server-core-5.5:amd64

Investigating (0) libmariadbclient18 [ amd64 ] < 5.5.34+maria-1~precise > ( libs )

Broken libmariadbclient18:amd64 Depends on libmysqlclient18 [ amd64 ] < 5.5.34+maria-1~precise -> 5.5.35-0ubuntu0.12.04.1 > ( libs ) (= 5.5.34+maria-1~precise)

  Considering libmysqlclient18:amd64 6 as a solution to libmariadbclient18:amd64 6

  Removing libmariadbclient18:amd64 rather than change libmysqlclient18:amd64

Investigating (0) mariadb-server-5.5 [ amd64 ] < 5.5.34+maria-1~precise > ( misc )

Broken mariadb-server-5.5:amd64 Depends on mariadb-client-5.5 [ amd64 ] < 5.5.34+maria-1~precise > ( misc ) (>= 5.5.34+maria-1~precise)

  Considering mariadb-client-5.5:amd64 2 as a solution to mariadb-server-5.5:amd64 1

  Removing mariadb-server-5.5:amd64 rather than change mariadb-client-5.5:amd64

Investigating (0) mariadb-server [ amd64 ] < 5.5.34+maria-1~precise > ( database )

Broken mariadb-server:amd64 Depends on mariadb-server-5.5 [ amd64 ] < 5.5.34+maria-1~precise > ( misc ) (= 5.5.34+maria-1~precise)

  Considering mariadb-server-5.5:amd64 1 as a solution to mariadb-server:amd64 0

  Removing mariadb-server:amd64 rather than change mariadb-server-5.5:amd64

Done

Done

The following packages will be REMOVED:

  libmariadbclient18 mariadb-client-5.5 mariadb-client-core-5.5 mariadb-server

  mariadb-server-5.5 mariadb-server-core-5.5

The following packages will be upgraded:

  libmysqlclient18 mysql-common

2 upgraded, 0 newly installed, 6 to remove and 0 not upgraded.

Need to get 957 kB of archives.

After this operation, 107 MB disk space will be freed.

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

Abort.

marc@db01:~$

Now that MariaDB has updated their PPA:

marc@db01:~$ apt-cache show mysql-common | grep Version

Version: 5.5.35+maria-1~precise

Version: 5.5.35-0ubuntu0.12.04.2

Version: 5.5.35-0ubuntu0.12.04.1

Version: 5.5.22-0ubuntu1

marc@db01:~$ apt-cache show libmysqlclient18 | grep Version

Version: 5.5.35+maria-1~precise

Version: 5.5.35-0ubuntu0.12.04.2

Version: 5.5.35-0ubuntu0.12.04.1

Version: 5.5.22-0ubuntu1



marc@db01:~$ sudo apt-get dist-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.