Running the OwnCloud package requires a LAMP (Linux, Apache, MySQL, PHP) installation. These packages are supported by all Linux distributions, though they may not be installed by default. Administering and installing MySQL is discussed in Chapter 10, Administration Calls.
Most distributions do not include the OwnCloud server in their repositories. Instead, the OwnCloud project maintains repositories to support the distributions. You'll need to attach OwnCloud to your RPM or apt repository before you download.