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103 lines
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103 lines
4.0 KiB
Plaintext
Installing PostgreSQL on Windows Using Cygwin FAQ
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=================================================
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$Date: 2007/10/09 01:28:24 $
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PostgreSQL requires the appropriate subset of Cygwin DLLs to be
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installed in order that it functions under Windows.
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This document assumes that you do not have Cygwin already installed
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on your system. If that is not the case, then you will need to
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adjust these instructions accordingly.
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1. Download and run the Cygwin installer. Visit http://cygwin.com/ and
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click on the "Install Cygwin now' link. This will prompt you
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to download a "setup.exe". Save this file somewhere on your
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system and then execute it.
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2. Proceed through the Cygwin install wizard. Choose 'Install from
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Internet', specify a Local Package Directory and choose a mirror
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site that's close to you. Answer the other installer questions
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appropriately for your configuration.
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When you come to the point of choosing which packages to install,
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expand the 'Database' section and click 'Skip' next to PostgreSQL
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to change it to the latest version of PostgreSQL available for
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Cygwin.
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3. Once the download and install process is complete, open a Cygwin
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shell and do the following for a basic installation:
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3a. Start cygserver for shared memory support. To do this,
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enter the command "/usr/sbin/cygserver &". This program
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needs to be running anytime you start the Postgres server
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or initialize a database (initdb).
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3b. Use the initdb command to create a new database cluster. An
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example command would be:
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initdb -D /usr/local/pgsql/data -W -E LATIN1
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Which will create a cluster in the /usr/local/pgsql/data
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directory, will prompt for a superuser password and will
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set the default database encoding to LATIN1.
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3c. Start up the Postgres server. Use a command similar to the
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following:
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postgres -D /usr/local/pgsql/data
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This will start the server, and if successful you will
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see some initial log entries, and an entry "LOG: database
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system is ready".
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4. You are now running a PostgreSQL server on your Windows machine.
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5. It is possible to install cygserver and the Postgres server as
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Windows NT services. For information on how to do this, please
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refer to the README document included with Cygwin PostgreSQL. It
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is installed in the /usr/share/doc/Cygwin directory.
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Building from source
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--------------------
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There are some points that are only relevant if you are building Cygwin
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PostgreSQL from source:
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1. Set your path to use the Cygwin bin directory before the Windows
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utilities. This will help prevent problems with compilation.
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2. Proceed according to the INSTALL file (i.e., ./configure; make; etc.)
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noting the following Cygwin specific differences:
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o The GNU make command is called "make" not "gmake".
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o The adduser command is not supported -- use the appropriate
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user management application on Windows NT, 2000, or XP.
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Otherwise, skip this step.
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o The su command is not supported -- use ssh to simulate su
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on Windows NT, 2000, or XP. Otherwise, skip this step.
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Alternatively, proceed according to the README file supplied with
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the Cygwin PostgreSQL package.
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Known issues
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------------
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1. Cygwin's AF_UNIX sockets are really implemented as AF_INET sockets
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so they are inherently insecure.
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2. "make check" can generate spurious regression test failures due to
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overflowing the listen() backlog queue which causes connection
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refused errors or hangs. You can limit the number of connections
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using the MAX_CONNECTIONS option thus:
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make MAX_CONNECTIONS=5 check
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(On some systems you can have up to about 10 simultaneous connections).
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3. The default cygserver configuration may need to be changed (e.g.,
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increase SEMMNS) to prevent PostgreSQL from failing due to a lack of
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system resources.
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Problem reports can be sent to pgsql-cygwin@postgresql.org.
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