我试图在Ubuntu 12.04 LTS上安装MariaDB。
我按照http://askubuntu.com/questions/64772/how-to-install-mariadb和MariaDB.org提供的说明，当您选择下载时出现。
最后一步是sudo apt-get install mariadb-server，它返回：
Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: mariadb-server : Depends: mariadb-server-5.5 but it is not going to be installed E: Unable to correct problems,you have held broken packages.
依赖问题是一个确认问题(https://mariadb.atlassian.net/browse/MDEV-3882)，但我相信破损的包装阻止了我的工作。
如果我尝试安装libmariadbclient18，我得到以下内容：
Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: libmariadbclient18 : Depends: libMysqLclient18 (= 5.5.30-mariadb1~precise) but 5.5.31-0ubuntu0.12.04.1 is to be installed E: Unable to correct problems,you have held broken packages.
我试图使用sudo apt-get install -f来更正破坏的包，但是我仍然无法安装mariadb-server或libmariadbclient18。
sudo apt-get install libMysqLclient18=5.5.30-mariadb1~precise MysqL-common=5.5.30-mariadb1~precise sudo apt-get install mariadb-server
第一个将ubuntu一边的两个MysqL库恢复到旧的mariadb。然后第二个可以正常进行。
软件包被删除，因为像apt-get dist-upgrade一样运行。 GUI实际上警告你，有些事情是不幸的。
为了防止这个问题再次出现，请通过在/etc/apt/preferences.d中创建一个文件来告诉favor the MariaDB repo via pinning：
$ cat /etc/apt/preferences.d/MariaDB.pref Package: * Pin: origin <mirror-domain> Pin-Priority: 1000
另外，如果需要编译任何东西(如Ruby gems)，请确保安装libmariadbclient-dev。
