# Error while trying to install on Dedian 9 **URL:** \ **Category:** Percona Server for MySQL 8.0\ **Created:** [August 26, 2019, 12:45pm UTC](https://forums.percona.com/t/error-while-trying-to-install-on-dedian-9/7173 "2019-08-26T12:45:41Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![paquitao](https://avatars.discourse-cdn.com/v4/letter/p/bbce88/32.png) [@paquitao](https://forums.percona.com/u/paquitao)\ **Post date:** [August 26, 2019, 12:45pm UTC](https://forums.percona.com/t/error-while-trying-to-install-on-dedian-9/7173/1 "2019-08-26T12:45:41Z")
Hi I m trying to use percona server to replace mysql normal distribution to see if I get better performance, but while in instalation process I got this error I already remove MariaDB but still got this error, Please If you know how to help would be nice. root@server:~# apt-get install percona-server-server Reading package lists… Done Building dependency tree Reading state information… Done The following additional packages will be installed: libmecab2 percona-server-client percona-server-common The following packages will be REMOVED: default-mysql-server mariadb-client-10.1 mariadb-client-core-10.1 mariadb-server-10.1 mariadb-server-core-10.1 mysql-server The following NEW packages will be installed: libmecab2 percona-server-client percona-server-common percona-server-server 0 upgraded, 4 newly installed, 6 to remove and 7 not upgraded. Need to get 0 B/49.1 MB of archives. After this operation, 184 MB of additional disk space will be used. Do you want to continue? [Y/n] y Preconfiguring packages … (Reading database … 135002 files and directories currently installed.) Preparing to unpack …/percona-server-common\_8.0.16-7-1.stretch\_amd64.deb … Unpacking percona-server-common (8.0.16-7-1.stretch) … Replacing files in old package mysql-common (5.8+1.0.2) … dpkg: error processing archive /var/cache/apt/archives/percona-server-common\_8.0.16-7-1.stretch\_amd64.deb (–unpack): trying to overwrite ‘/usr/share/mysql/charsets/Index.xml’, which is also in package mariadb-server-core-10.1 10.1.38-0+deb9u1 dpkg-deb: error: subprocess paste was killed by signal (Broken pipe) Errors were encountered while processing: /var/cache/apt/archives/percona-server-common\_8.0.16-7-1.stretch\_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1) root@server:~# ---
**Author:** ![Federico\_Razzoli](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/federico_razzoli/32/24_2.png) [@Federico\_Razzoli](https://forums.percona.com/u/Federico_Razzoli)\ **Post date:** [August 27, 2019, 12:16pm UTC](https://forums.percona.com/t/error-while-trying-to-install-on-dedian-9/7173/2 "2019-08-27T12:16:26Z")
The installation process was killed while trying to overwrite something that was left by a previous installation. My advice: [LIST] [_]Stop any mysql service [_]Kill any existing mysqld\_safe and mysqld process [_]Run apt-get purge mariadb (and MySQL and whatever was previously installed) [_]Remove any directory created by those packages, if it wasn’t removed when you uninstalled them [_]Remove any previous configuration file, especially if it specifies non-standard paths [_]Remove mysql group and user [\*]apt-get clean [/LIST]