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@title Installation Guide
@group intro
This document contains basic install instructions to get Phabricator up and
running.
= Installation Requirements =
You will need **a computer**. Options include:
- **A Normal Computer**: This is strongly recommended. Many installs use a VM
in EC2. Phabricator installs properly and works well on a normal computer.
- **A Shared Host**: This may work, but is not recommended. Many shared
hosting environments have restrictions which prevent some of Phabricator's
features from working. Consider using a normal computer instead.
- **A SAN Appliance, Network Router, Gaming Console, Raspberry Pi, etc.**:
Although you may be able to install Phabricator on specialized hardware, it
is unlikely to work well and will be difficult for us to support. Strongly
consider using a normal computer instead.
- **A Toaster, Car, Firearm, Thermostat, etc.**: Yes, many modern devices now
have embedded computing capability. We live in interesting times. However,
you should not install Phabricator on these devices. Instead, install it on
a normal computer.
You will need an **operating system** which is **not Windows**. Phabricator runs
on most operating systems which are not Windows.
- **Linux**: Most installs use Linux.
- **Mac OS X**: Mac OS X is an acceptable flavor of Linux.
- **FreeBSD**: While FreeBSD is certainly not a flavor of Linux, it is a fine
operating system possessed of many desirable qualities, and Phabricator will
install and run properly on FreeBSD.
- **Solaris, etc.**: Other systems which look like Linux and quack like Linux
will generally work fine, although we may suffer a reduced ability to
support and resolve issues on unusual operating systems.
NOTE: The command line interface to Phabricator, "Arcanist", //does// work on
Windows. For instructions, see @{article:Arcanist User Guide: Windows}.
Beyond an operating system, you will need **a webserver**.
- **Apache**: Many installs use Apache + `mod_php`.
- **nginx**: Many installs use nginx + `php-fpm`.
- **lighttpd**: `lighttpd` is less popular than Apache or nginx, but it
works fine.
- **Other**: Other webservers which can run PHP are also likely to work fine,
although these installation instructions will not cover how to set them up.
- **PHP Builtin Server**: You can use the builtin PHP webserver for
development or testing, although it should not be used in production.
You will also need:
- **MySQL**: You need MySQL.
- **PHP**: You need PHP 5.2 or newer.
You'll probably also need a **domain name**. In particular, you should read this
note:
NOTE: Phabricator must be installed on an entire domain. You can not install it
to a path on an existing domain, like `example.com/phabricator/`. Instead,
install it to an entire domain or subdomain, like `phabricator.example.com`.
= Installing Required Components =
If you are installing on Ubuntu or an RedHat derivative, there are install
scripts available which should handle most of the things discussed in this
document for you:
- **RedHat Derivatives**:
<http://www.phabricator.com/rsrc/install/install_rhel-derivs.sh>
- **Ubuntu**: <http://www.phabricator.com/rsrc/install/install_ubuntu.sh>
If those work for you, you can skip directly to the
@{article:Configuration Guide}. These scripts are also available in the
##scripts/install## directory in the project itself.
Otherwise, here's a general description of what you need to install:
- git (usually called "git" in package management systems)
- Apache (usually "httpd" or "apache2") (or nginx)
- MySQL Server (usually "mysqld" or "mysql-server")
- PHP (usually "php")
- Required PHP extensions: mbstring, iconv, mysql (or mysqli), curl, pcntl
(these might be something like "php-mysql" or "php5-mysql")
- Optional PHP extensions: gd, apc (special instructions for APC are available
below if you have difficulty installing it), xhprof (instructions below,
you only need this if you are developing Phabricator)
If you already have LAMP setup, you've probably already got everything you need.
It may also be helpful to refer to the install scripts above, even if they don't
work for your system.
Now that you have all that stuff installed, grab Phabricator and its
dependencies:
$ cd somewhere/ # pick some install directory
somewhere/ $ git clone git://github.com/facebook/libphutil.git
somewhere/ $ git clone git://github.com/facebook/arcanist.git
somewhere/ $ git clone git://github.com/facebook/phabricator.git
= Installing APC (Optional) =
Like everything else written in PHP, Phabricator will run much faster with APC
installed. You likely need to install "pcre-devel" first:
sudo yum install pcre-devel
Then you have two options. Either install via PECL (try this first):
sudo yum install php-pear
sudo pecl install apc
**If that doesn't work**, grab the package from PECL directly and follow the
build instructions there:
http://pecl.php.net/package/APC
Installing APC is optional but **strongly recommended**, especially on
production hosts.
Once APC is installed, test that it is available by running:
php -i | grep apc
If it doesn't show up, add:
extension=apc.so
..to "/etc/php.d/apc.ini" or the "php.ini" file indicated by "php -i".
= Installing XHProf (Optional) =
XHProf is a PHP profiling tool. You don't need to install it unless you are
developing Phabricator and making performance changes.
You can install xhprof with:
$ pecl install xhprof
If you have a PEAR version prior to 1.9.3, you may run into a `phpize` failure.
If so, you can download the source and build it with:
$ cd extension/
$ phpize
$ ./configure
$ make
$ sudo make install
You may also need to add "##extension=xhprof.so##" to your php.ini.
See <https://bugs.php.net/bug.php?id=59747> for more information.
= Updating Phabricator =
Since Phabricator is under active development, you should update frequently. To
update Phabricator:
- Stop the webserver (including `php-fpm`, if you use it).
- Run `git pull` in `libphutil/`, `arcanist/` and `phabricator/`.
- Run `phabricator/bin/storage upgrade`.
- Restart the webserver (and `php-fpm`, if you stopped it earlier).
For more details, see @{article:Configuration Guide}. You can use a script
similar to this one to automate the process:
http://www.phabricator.com/rsrc/install/update_phabricator.sh
= Next Steps =
Continue by:
- configuring Phabricator with the @{article:Configuration Guide}.

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