总之，我需要更新Elastic Beanstalk PHP实例上的unixODBC，最好使用yum，因为通过.ebextensions进行pipe理非常容易。
sudo yum info unixODBC
Installed Packages Name : unixODBC Arch : x86_64 Version : 2.2.14 Release : 14.7.amzn1 Size : 1.1 M Repo : installed From repo : amzn-main Summary : A complete ODBC driver manager for Linux URL : http://www.unixODBC.org/ License : GPLv2+ and LGPLv2+ Description : Install unixODBC if you want to access databases through ODBC. : You will also need the mysql-connector-odbc package if you want to access : a MySQL database, and/or the postgresql-odbc package for PostgreSQL. Available Packages Name : unixODBC Arch : i686 Version : 2.2.14 Release : 14.7.amzn1 Size : 460 k Repo : amzn-main/2017.03 Summary : A complete ODBC driver manager for Linux URL : http://www.unixODBC.org/ License : GPLv2+ and LGPLv2+ Description : Install unixODBC if you want to access databases through ODBC. : You will also need the mysql-connector-odbc package if you want to access : a MySQL database, and/or the postgresql-odbc package for PostgreSQL.
我在serverfaultfind了2个相关文章，但是他们不再工作。 有人build议我禁用yum的优先权，我做了，但没有改变。