While installing Percona Server 5.5/5.6 on Ubuntu 13.04/13.10, I got some weird errors, which I never faced before. Errors were something like,

dpkg: error processing /var/cache/apt/archives/libmysqlclient18_1%3a5.5.35-rel33.0-611.raring_amd64.deb (–unpack):
  libmysqlclient18:amd64 1:5.5.35-rel33.0-611.raring (Multi-Arch: no) is not co-installable with libmysqlclient18 which has multiple installed instances

shell>  sudo apt-get install percona-server-server-5.5
 Reading package lists... Done
 Building dependency tree
 Reading state information... Done
 The following extra packages will be installed:
 libdbd-mysql-perl libmysqlclient18 percona-server-client-5.5 percona-server-common-5.5
 Suggested packages:
 tinyca
 The following NEW packages will be installed:
 libdbd-mysql-perl libmysqlclient18 percona-server-client-5.5 percona-server-common-5.5 percona-server-server-5.5
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