root@instance:/# apt-get install mariadb-backup-10.2

Reading package lists... Done

Building dependency tree

Reading state information... Done

The following packages were automatically installed and are no longer required:

  libdbd-mysql-perl libdbi-perl libhtml-template-perl libterm-readkey-perl libwrap0 mysql-server-core-5.5 tcpd

Use 'apt-get autoremove' to remove them.

The following extra packages will be installed:

  libmariadb3 libreadline5 mariadb-client-core-10.2 mariadb-common

The following packages will be REMOVED:

  mysql-client-5.5 mysql-server mysql-server-5.5

The following NEW packages will be installed:

  libmariadb3 libreadline5 mariadb-backup-10.2 mariadb-client-core-10.2 mariadb-common

0 upgraded, 5 newly installed, 3 to remove and 13 not upgraded.

Need to get 6576 kB of archives.

After this operation, 36.7 MB disk space will be freed.

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

Get:1 http://deb.debian.org/debian/ jessie/main libreadline5 amd64 5.2+dfsg-2 [151 kB]

Err http://downloads.mariadb.com/MariaDB/mariadb-10.2/repo/debian/ jessie/main mariadb-common all 10.2.36+maria~jessie

  HttpError404

Err http://downloads.mariadb.com/MariaDB/mariadb-10.2/repo/debian/ jessie/main libmariadb3 amd64 10.2.36+maria~jessie

  HttpError404

Err http://downloads.mariadb.com/MariaDB/mariadb-10.2/repo/debian/ jessie/main mariadb-client-core-10.2 amd64 10.2.36+maria~jessie

  HttpError404

Err http://downloads.mariadb.com/MariaDB/mariadb-10.2/repo/debian/ jessie/main mariadb-backup-10.2 amd64 10.2.36+maria~jessie

  HttpError404

Fetched 151 kB in 3s (42.4 kB/s)

E: Failed to fetch http://downloads.mariadb.com/MariaDB/mariadb-10.2/repo/debian/pool/main/m/mariadb-10.2/mariadb-common_10.2.36+maria~jessie_all.deb  HttpError404

E: Failed to fetch http://downloads.mariadb.com/MariaDB/mariadb-10.2/repo/debian/pool/main/m/mariadb-10.2/libmariadb3_10.2.36+maria~jessie_amd64.deb  HttpError404

E: Failed to fetch http://downloads.mariadb.com/MariaDB/mariadb-10.2/repo/debian/pool/main/m/mariadb-10.2/mariadb-client-core-10.2_10.2.36+maria~jessie_amd64.deb  HttpError404

E: Failed to fetch http://downloads.mariadb.com/MariaDB/mariadb-10.2/repo/debian/pool/main/m/mariadb-10.2/mariadb-backup-10.2_10.2.36+maria~jessie_amd64.deb  HttpError404

E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?