console character set setting. * faq: Throughout, change references to User's Guide to references to 1.7 User's Guide temporarily. * faq-setup.html (faq.using.unicode): Rephrase slightly. (faq.using.weirdchars): New FAQ entry for console charset problems.
		
			
				
	
	
		
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			561 lines
		
	
	
		
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<!-- faq-setup.xml -->
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<qandaentry id="faq.setup.setup">
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<question><para>What is the recommended installation procedure?</para></question>
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<answer>
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<para>There is only one recommended way to install Cygwin, which is to use the GUI
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installer ``Cygwin Setup''.  It is flexible and easy to use.  
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You can pick and choose the packages you wish to install, and update
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them individually.  Full source code is available for all packages and
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tools.  More information on using Cygwin Setup may be found at
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<ulink url="http://cygwin.com/1.7/cygwin-ug-net/setup-net.html" />.
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</para>
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<para>If you do it any other way, you're on your own!  That said, keep in mind
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that the GUI installer is a "work in progress", so there might be a few
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difficulties, especially if you are behind a firewall or have other
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specific requirements.  If something doesn't work right for you, and
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it's not covered here or in the latest development snapshot at
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<ulink url="http://cygwin.com/snapshots/">http://cygwin.com/snapshots/</ulink>, then by all means report it to the
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mailing list.
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</para>
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<para>For a searchable list of packages that can be installed with Cygwin,
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see <ulink url="http://cygwin.com/packages/">http://cygwin.com/packages/</ulink>.
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</para>
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</answer></qandaentry>
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<qandaentry id="faq.setup.automated">
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<question><para>What about an automated Cygwin installation?</para></question>
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<answer>
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<para>The Cygwin Setup program is designed to be interactive, but there are
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a few different ways to automate it. If you are deploying to multiple systems,
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the best way is to run through a full installation once, saving the entire 
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downloaded package tree. Then, on target systems, run setup.exe as a "Local
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Install" pointed at your downloaded package tree. You could do this 
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non-interactively with the command line options 
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<literal>setup.exe -q -L -l x:\cygwin-local\</literal>, where your downloaded 
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package tree is in <literal>x:\cygwin-local\</literal> (see the next FAQ for
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an explanation of those options.)
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</para>
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<para>
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For other options, search the mailing lists with terms such as 
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<ulink url="http://www.google.com/search?q=cygwin+automated+setup">cygwin automated setup</ulink> or
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<ulink url="http://www.google.com/search?q=automated+cygwin+install">automated cygwin install</ulink>.
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</para>
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</answer></qandaentry>
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<qandaentry id="faq.setup.cli">
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<question><para>Does setup.exe accept command-line arguments?</para></question>
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<answer>
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<para>Yes, the full listing is written to the <literal>setup.log</literal> file 
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when you run <literal>setup.exe --help</literal>. The current options are:
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<screen>
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Command Line Options:
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 -D --download                          Download from internet
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 -L --local-install                     Install from local directory
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 -s --site                              Download site
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 -R --root                              Root installation directory
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 -q --quiet-mode                        Unattended setup mode
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 -h --help                              print help
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 -l --local-package-dir                 Local package directory
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 -r --no-replaceonreboot                Disable replacing in-use files on next
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                                        reboot.
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 -n --no-shortcuts                      Disable creation of desktop and start
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                                        menu shortcuts
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 -N --no-startmenu                      Disable creation of start menu shortcut
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 -d --no-desktop                        Disable creation of desktop shortcut
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 -A --disable-buggy-antivirus           Disable known or suspected buggy anti
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                                        virus software packages during
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                                        execution.
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</screen>
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</para>
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</answer></qandaentry>
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<qandaentry id="faq.setup.c">
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<question><para>Why not install in C:\?</para></question>
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<answer>
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<para>The Cygwin Setup program will prompt you for a "root" directory.
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The default is <literal>C:\cygwin</literal>, but you can change it.  You are urged not to
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choose something like <literal>C:\</literal> (the root directory on the system drive) for
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your Cygwin root.  If you do, then critical Cygwin system directories
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like <literal>etc</literal>, <literal>lib</literal> and <literal>bin</literal> could easily be corrupted by
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other (non-Cygwin) applications or packages that use <literal>\etc</literal>,
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<literal>\lib</literal> or <literal>\bin</literal>.  Perhaps there is no conflict now, but who
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knows what you might install in the future?  It's also just good common
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sense to segregate your Cygwin "filesystems" from the rest of your
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Windows system disk.
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</para>
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<para>(In the past, there had been genuine bugs that would cause problems
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for people who installed in <literal>C:\</literal>, but we believe those are gone
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now.)
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</para>
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</answer></qandaentry>
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<qandaentry id="faq.setup.old-versions">
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<question><para>Can I use Cygwin Setup to get old versions of packages (like gcc-2.95)?</para></question>
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<answer>
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<para>Cygwin Setup can be used to install any packages that are on a
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Cygwin mirror, which usually includes one version previous to the
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current one. The complete list may be searched at 
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<ulink url="http://cygwin.com/packages/">http://cygwin.com/packages/</ulink>.  There is no complete archive of
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older packages. If you have a problem with the current version of
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a Cygwin package, please report it to the mailing list using the 
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guidelines at <ulink url="http://cygwin.com/problems.html">http://cygwin.com/problems.html</ulink>.
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</para>
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<para>That said, if you really need an older package, you may be able to find
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an outdated or archival mirror by searching the web for an old package
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version (for example, <literal>gcc2-2.95.3-10-src.tar.bz2</literal>), but keep in
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mind that this older version will not be supported by the mailing list
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and that installing the older version will not help improve Cygwin.
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</para>
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</answer></qandaentry>
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<qandaentry id="faq.setup.virus">
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<question><para>Is Cygwin Setup, or one of the packages, infected with a virus?</para></question>
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<answer>
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<para>Unlikely.  Unless you can confirm it, please don't report it to the
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mailing list.  Anti-virus products have been known to detect false
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positives when extracting compressed tar archives.  If this causes
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problems for you, consider disabling your anti-virus software when
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running <literal>setup</literal>.  Read the next entry for a fairly safe way to do
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this.
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</para>
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</answer></qandaentry>
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<qandaentry id="faq.setup.hang">
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<question><para>My computer hangs when I run Cygwin Setup!</para></question>
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<answer>
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<para>Both Network Associates (formerly McAfee) and Norton anti-virus
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products have been reported to "hang" when extracting Cygwin tar
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archives.  If this happens to you, consider disabling your anti-virus
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software when running Cygwin Setup.  The following procedure should be
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a fairly safe way to do that:
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</para>
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<orderedlist><listitem><para>Download <literal>setup.exe</literal> and scan it explicitly.
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</para>
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</listitem>
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<listitem><para>Turn off the anti-virus software.
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</para>
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</listitem>
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<listitem><para>Run setup to download and extract all the tar files.
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</para>
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</listitem>
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<listitem><para>Re-activate your anti-virus software and scan everything
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in C:\cygwin (or wherever you chose to install), or your entire hard
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disk if you are paranoid.
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</para>
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</listitem>
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</orderedlist>
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<para>This should be safe, but only if Cygwin Setup is not substituted by
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something malicious, and no mirror has been compromised.
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</para>
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<para>See also <ulink url="http://cygwin.com/faq/faq.using.html#faq.using.bloda" />
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for a list of applications that have been known, at one time or another, to
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interfere with the normal functioning of Cygwin.
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</para>
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</answer></qandaentry>
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<qandaentry id="faq.setup.what-packages">
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<question><para>What packages should I download? Where are 'make', 'gcc', 'vi', etc?  </para></question>
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<answer>
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<para>When using Cygwin Setup for the first time, the default is to install
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a minimal subset of all available packages.  If you want anything beyond that,
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you will have to select it explicitly.  See 
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<ulink url="http://cygwin.com/packages/" /> for a searchable list of available
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packages, or use <literal>cygcheck -p </literal> as described in the Cygwin
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User's Guide at
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<ulink url="http://cygwin.com/1.7/cygwin-ug-net/using-utils.html#cygcheck" />.
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</para>
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<para>If you want to build programs, of course you'll need <literal>gcc</literal>,
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<literal>binutils</literal>, <literal>make</literal> and probably other packages from the
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``Devel'' category. Text editors can be found under ``Editors''.
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</para>
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</answer></qandaentry>
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<qandaentry id="faq.setup.everything">
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<question><para>How do I just get everything?</para></question>
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<answer>
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<para>Long ago, the default was to install everything, much to the
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irritation of most users.  Now the default is to install only a basic
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core of packages.  Cygwin Setup is designed to make it easy to browse
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categories and select what you want to install or omit from those
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categories.  It's also easy to install everything:
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</para>
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<orderedlist>
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<listitem><para>At the ``Select Packages'' screen, in ``Categories'' view, at the line 
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marked ``All'', click on the word ``default'' so that it changes to
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``install''.  (Be patient, there is some computing to do at this step.
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It may take a second or two to register the change.)  This tells Setup
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to install <emphasis>everything</emphasis>, not just what it thinks you should have
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by default.
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</para>
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</listitem>
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<listitem><para>Now click on the ``View'' button (twice) until you get the
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``Partial'' view.  This shows exactly which packages are about to be
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downloaded and installed.
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</para>
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</listitem>
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</orderedlist>
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<para>This procedure only works for packages that are currently available.
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There is no way to tell Cygwin Setup to install all packages by
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default from now on.  As new packages become available that would not
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be installed by default, you have to repeat the above procedure to get
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them.
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</para>
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<para>In general, a better method (in my opinion), is to:
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</para>
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<orderedlist>
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<listitem><para>First download & install all packages that would normally be
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installed by default.  This includes fundamental packages and any
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updates to what you have already installed.  Then...
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</para>
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</listitem>
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<listitem><para>Run Cygwin Setup again, and apply the above technique to get all
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new packages that would not be installed by default.  You can check
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the list in the Partial View before proceeding, in case there's
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something you really <emphasis>don't</emphasis> want.
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</para>
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</listitem>
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<listitem><para>In the latest version of Cygwin Setup, if you click the ``View''
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button (twice) more, it shows packages not currently installed.  You
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ought to check whether you <emphasis>really</emphasis> want to install everything!
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</para>
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</listitem>
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</orderedlist>
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</answer></qandaentry>
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<qandaentry id="faq.setup.disk-space">
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<question><para>How much disk space does Cygwin require?</para></question>
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<answer>
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<para>That depends, obviously, on what you've chosen to download and
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install.  A full installation today is probably larger than 1 GB
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installed, not including the package archives themselves nor the source
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code.
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</para>
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<para>After installation, the package archives remain in your ``Local
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Package Directory'', by default the location of <literal>setup.exe</literal>.  You
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may conserve disk space by deleting the subdirectories there.  These
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directories will have very weird looking names, being encoded with
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their URLs  (named <literal>ftp%3a%2f...</literal>).
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</para>
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<para>Of course, you can keep them around in case you want to reinstall a
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package. If you want to clean out only the outdated packages, Michael Chase
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has written a script called <literal>clean_setup.pl</literal>, available
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at <ulink url="http://home.ix.netcom.com/~mchase/zip/" />.
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</para>
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</answer></qandaentry>
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<qandaentry id="faq.setup.what-upgraded">
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<question><para>How do I know which version I upgraded from?</para></question>
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<answer>
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<para>Detailed logs of the most recent Cygwin Setup session can be found in
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<literal>/var/log/setup.log.full</literal> and less verbose information about
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prior actions is in <literal>/var/log/setup.log</literal>.
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</para>
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</answer></qandaentry>
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<qandaentry id="faq.setup.setup-fails">
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<question><para>What if setup fails?</para></question>
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<answer>
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<para>First, make sure that you are using the latest version of Cygwin Setup.
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The latest version is always available from the 'Install Cygwin now' link on
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the Cygwin Home Page at <ulink
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url="http://cygwin.com/">http://cygwin.com/</ulink>.  </para>
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<para>If you are downloading from the Internet, setup will fail if it cannot
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download the list of mirrors at <ulink
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url="http://cygwin.com/mirrors.html">http://cygwin.com/mirrors.html</ulink>.
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It could be that the network is too busy.  Something similar could be the
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cause of a download site not working.  Try another mirror, or try again
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later.
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</para>
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<para>If setup refuses to download a package that you know needs to be
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upgraded, try deleting that package's entry from /etc/setup.  If you are
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reacting quickly to an announcement on the mailing list, it could be
 | 
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that the mirror you are using doesn't have the latest copy yet.  Try
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another mirror, or try again tomorrow.
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</para>
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<para>If setup has otherwise behaved strangely, check the files
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<literal>setup.log</literal> and <literal>setup.log.full</literal> in
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<literal>/var/log</literal> (<literal>C:\cygwin\var\log</literal> by
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default).  It may provide some clues as to what went wrong and why.
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</para>
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<para>If you're still baffled, search the Cygwin mailing list for clues.
 | 
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Others may have the same problem, and a solution may be posted there.
 | 
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If that search proves fruitless, send a query to the Cygwin mailing
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list.  You must provide complete details in your query: version of
 | 
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setup, options you selected, contents of setup.log and setup.log.full,
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what happened that wasn't supposed to happen, etc.
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</para>
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</answer></qandaentry>
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<qandaentry id="faq.setup.name-with-space">
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<question><para>My Windows logon name has a space in it, will this cause problems?</para></question>
 | 
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<answer>
 | 
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<para>Most definitely yes!  UNIX shells (and thus Cygwin) use the space
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character as a word delimiter.  Under certain circumstances, it is
 | 
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possible to get around this with various shell quoting mechanisms, but
 | 
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you are much better off if you can avoid the problem entirely.
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</para>
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<para>On Windows NT/2000/XP you have two choices:
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</para><orderedlist>
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<listitem><para>You can rename the user in the Windows User Manager GUI and then
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run mkpasswd.
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</para>
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</listitem>
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<listitem><para>You can simply edit the /etc/passwd file and change the Cygwin user name 
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(first field). It's also a good idea to avoid spaces in the home directory.
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</para>
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</listitem>
 | 
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</orderedlist>
 | 
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<para>On Windows 95/98/ME you can create a new user and run mkpasswd, 
 | 
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or you can delete the offending entry from /etc/passwd. 
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Cygwin will then use the name in the default entry with uid 500.
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</para>
 | 
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</answer></qandaentry>
 | 
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 | 
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<qandaentry id="faq.setup.home">
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<question><para>My <literal>HOME</literal> environment variable is not what I want.</para></question>
 | 
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<answer>
 | 
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 | 
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<para>When starting Cygwin from Windows, <literal>HOME</literal> is determined as follows
 | 
						|
in order of decreasing priority:
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						|
</para>
 | 
						|
<orderedlist>
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						|
<listitem><para><literal>HOME</literal> from the Windows environment, translated to POSIX form.
 | 
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</para>
 | 
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</listitem>
 | 
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<listitem><para>The entry in /etc/passwd
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</para>
 | 
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</listitem>
 | 
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<listitem><para><literal>HOMEDRIVE</literal> and <literal>HOMEPATH</literal> from the Windows environment
 | 
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</para>
 | 
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</listitem>
 | 
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<listitem><para>/
 | 
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</para>
 | 
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</listitem>
 | 
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</orderedlist>
 | 
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 | 
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<para>When using Cygwin from the network (telnet, ssh,...), <literal>HOME</literal> is set 
 | 
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from /etc/passwd.
 | 
						|
</para>
 | 
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<para>If your <literal>HOME</literal> is set to a value such as /cygdrive/c, it is likely 
 | 
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that it was set in Windows. Start a DOS Command Window and type 
 | 
						|
"set HOME" to verify if this is the case.
 | 
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</para>
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<para>Access to shared drives is often restricted when starting from the network,
 | 
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thus Domain users may wish to have a different <literal>HOME</literal> in the 
 | 
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Windows environment (on shared drive) than in /etc/passwd (on local drive).
 | 
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Note that ssh only considers /etc/passwd, disregarding <literal>HOME</literal>. 
 | 
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</para>
 | 
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</answer></qandaentry>
 | 
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 | 
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<qandaentry id="faq.setup.uninstall-packages">
 | 
						|
<question><para>How do I uninstall individual packages?</para></question>
 | 
						|
<answer>
 | 
						|
 | 
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<para>Run Cygwin Setup as you would to install packages.  In the list of
 | 
						|
packages to install, browse the relevant category or click on the
 | 
						|
``View'' button to get a full listing.  Click on the cycle glyph until
 | 
						|
the action reads ``Uninstall''.  Proceed by clicking ``Next''.
 | 
						|
</para>
 | 
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</answer></qandaentry>
 | 
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 | 
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<qandaentry id="faq.setup.uninstall-service">
 | 
						|
<question><para>How do I uninstall a Cygwin service?</para></question>
 | 
						|
<answer>
 | 
						|
<orderedlist>
 | 
						|
<listitem><para>List all services you have installed with 
 | 
						|
<literal>cygrunsrv -L</literal>. If you do not have 
 | 
						|
<literal>cygrunsrv</literal> installed, skip this FAQ.
 | 
						|
</para></listitem>
 | 
						|
<listitem><para>Before removing the service, you should stop it with 
 | 
						|
<literal>cygrunsrv --stop <replaceable>service_name</replaceable></literal>. 
 | 
						|
If you have <literal>inetd</literal> configured to run as a standalone
 | 
						|
service, it will not show up in the list, but 
 | 
						|
<literal>cygrunsrv --stop inetd</literal> will work to stop it as 
 | 
						|
well.
 | 
						|
</para></listitem> 
 | 
						|
<listitem><para>Lastly, remove the service with
 | 
						|
<literal>cygrunsrv --remove <replaceable>service_name</replaceable></literal>.
 | 
						|
</para></listitem>
 | 
						|
</orderedlist>
 | 
						|
</answer></qandaentry>
 | 
						|
 | 
						|
<qandaentry id="faq.setup.uninstall-all">
 | 
						|
<question><para>How do I uninstall <emphasis role='bold'>all</emphasis> of Cygwin?</para></question>
 | 
						|
<answer>
 | 
						|
<para>Setup has no automatic uninstall facility.  The recommended method to remove all 
 | 
						|
of Cygwin is as follows:
 | 
						|
</para>
 | 
						|
<orderedlist>
 | 
						|
<listitem><para>If you have any Cygwin services running, remove by repeating 
 | 
						|
the instructions in <ulink
 | 
						|
url="http://cygwin.com/faq/faq.setup.html#faq.setup.uninstall-service" /> for
 | 
						|
all services that you installed.  Common services that might have been
 | 
						|
installed are <literal>sshd</literal>, <literal>cron</literal>, 
 | 
						|
<literal>cygserver</literal>, <literal>inetd</literal>, <literal>apache</literal>, 
 | 
						|
<literal>postgresql</literal>, and so on.
 | 
						|
</para>
 | 
						|
</listitem>
 | 
						|
<listitem><para>Stop the X11 server if it is running, and terminate any Cygwin programs 
 | 
						|
that might be running in the background.  Exit the command prompt and ensure
 | 
						|
that no Cygwin processes remain.  Note: If you want to save your mount points for a later 
 | 
						|
reinstall, first save the output of <literal>mount -m</literal> as described at 
 | 
						|
<ulink url="http://cygwin.com/1.7/cygwin-ug-net/using-utils.html#mount" />.
 | 
						|
</para>
 | 
						|
</listitem>
 | 
						|
<listitem><para>Delete the Cygwin root folder and all subfolders.  If you get an error 
 | 
						|
that an object is in use, then ensure that you've stopped all services and 
 | 
						|
closed all Cygwin programs.  If you get a 'Permission Denied' error then you 
 | 
						|
will need to modify the permissions and/or ownership of the files or folders 
 | 
						|
that are causing the error.  For example, sometimes files used by system 
 | 
						|
services end up owned by the SYSTEM account and not writable by regular users.  
 | 
						|
</para>
 | 
						|
<para>The quickest way to delete the entire tree if you run into this problem is to 
 | 
						|
change the ownership of all files and folders to your account.  To do this in 
 | 
						|
Windows Explorer, right click on the root Cygwin folder, choose Properties, then 
 | 
						|
the Security tab.  If you are using Windows XP Home or Simple File Sharing,
 | 
						|
you will need to boot into Safe Mode to access the Security tab.  Select 
 | 
						|
Advanced, then go to the Owner tab and make sure your account is listed as 
 | 
						|
the owner.  Select the 'Replace owner on subcontainers and objects' checkbox 
 | 
						|
and press Ok.  After Explorer applies the changes you should be able to 
 | 
						|
delete the entire tree in one operation.  Note that you can also achieve 
 | 
						|
this in Cygwin by typing <literal>chown -R user /</literal> or by using other 
 | 
						|
tools such as <literal>CACLS.EXE</literal>. 
 | 
						|
</para>
 | 
						|
</listitem>
 | 
						|
<listitem><para>Delete the Cygwin shortcuts on the Desktop and Start Menu, and anything 
 | 
						|
left by setup.exe in the download directory.  However, if you plan to reinstall 
 | 
						|
Cygwin it's a good idea to keep your setup.exe download directory since you can 
 | 
						|
reinstall the packages left in its cache without redownloading them.
 | 
						|
</para>
 | 
						|
</listitem>
 | 
						|
<listitem><para>If you added Cygwin to your system path, you should remove it unless you 
 | 
						|
plan to reinstall Cygwin to the same location.  Similarly, if you set your 
 | 
						|
CYGWIN environment variable system-wide and don't plan to reinstall, you should 
 | 
						|
remove it.
 | 
						|
</para>
 | 
						|
</listitem>
 | 
						|
<listitem><para>Finally, if you want to be thorough you can delete the registry tree 
 | 
						|
<literal>Software\Cygwin</literal> under <literal>HKEY_LOCAL_MACHINE</literal> and/or 
 | 
						|
<literal>HKEY_CURRENT_USER</literal>.  However, if you followed the directions above you 
 | 
						|
will have already removed everything important.  Typically only the installation
 | 
						|
directory has been stored in the registry at all.
 | 
						|
</para>
 | 
						|
</listitem>
 | 
						|
</orderedlist>
 | 
						|
 | 
						|
</answer></qandaentry>
 | 
						|
 | 
						|
<qandaentry id="faq.setup.snapshots">
 | 
						|
<question><para>How do I install snapshots?</para></question>
 | 
						|
<answer>
 | 
						|
 | 
						|
<para>First, are you sure you want to do this?  Snapshots are risky.  They
 | 
						|
have not been tested.  Use them <emphasis role='bold'>only</emphasis> if there is a feature or
 | 
						|
bugfix that you need to try, and you are willing to deal with any
 | 
						|
problems, or at the request of a Cygwin developer.
 | 
						|
</para>
 | 
						|
<para>You should generally install the full
 | 
						|
<literal>cygwin-inst-YYYYMMDD.tar.bz2</literal> update, rather than just the DLL,
 | 
						|
otherwise some components may be out of sync.
 | 
						|
</para>
 | 
						|
<para>You cannot use Cygwin Setup to install a snapshot.
 | 
						|
</para>
 | 
						|
<para>First, you will need to download the snapshot from the snapshots
 | 
						|
page at <ulink url="http://cygwin.com/snapshots/">http://cygwin.com/snapshots/</ulink>.  Note the directory where
 | 
						|
you saved the snapshot tarball.
 | 
						|
</para>
 | 
						|
<para>Before installing a snapshot, you must first Close <emphasis role='bold'>all</emphasis> Cygwin
 | 
						|
applications, including shells and services (e.g., <literal>inetd</literal>, <literal>sshd</literal>).
 | 
						|
You will not be able to replace <literal>cygwin1.dll</literal> if any Cygwin process is
 | 
						|
running.  You may have to restart Windows to clear the DLL from memory
 | 
						|
(beware of automatic service startup).
 | 
						|
</para>
 | 
						|
<para>Most of the downloaded snapshot can be installed using <literal>tar</literal>.  Cygwin
 | 
						|
<literal>tar</literal> won't be able to update <literal>/usr/bin/cygwin1.dll</literal> (because it's
 | 
						|
used by <literal>tar</literal> itself), but it should succeed with everything else.  If
 | 
						|
you are only installing the DLL snapshot, skip the first tar command.  Open
 | 
						|
a <literal>bash</literal> shell (it should be the only running Cygwin process) and issue
 | 
						|
the following commands:
 | 
						|
<screen>
 | 
						|
	/bin/tar -C/ -jxvf /posix/path/to/cygwin-inst-YYYYMMDD.tar.bz2 --exclude=usr/bin/cygwin1.dll
 | 
						|
	/bin/tar -C/tmp -jxvf /posix/path/to/cygwin-inst-YYYYMMDD.tar.bz2 usr/bin/cygwin1.dll
 | 
						|
</screen>
 | 
						|
</para>
 | 
						|
<para>Exit the bash shell, and use Explorer or the Windows command shell to
 | 
						|
first rename <literal>C:\cygwin\bin\cygwin1.dll</literal> to
 | 
						|
<literal>C:\cygwin\bin\cygwin1-prev.dll</literal> and then move
 | 
						|
<literal>C:\cygwin\tmp\usr\bin\cygwin1.dll</literal>
 | 
						|
to <literal>C:\cygwin\bin\cygwin1.dll</literal> (assuming you installed Cygwin in
 | 
						|
<literal>C:\cygwin</literal>).
 | 
						|
</para>
 | 
						|
<para>The operative word in trying the snapshots is "<emphasis>trying</emphasis>".  If you
 | 
						|
notice a problem with the snapshot that was not present in the release
 | 
						|
DLL (what we call a "regression"), please report it to the Cygwin
 | 
						|
mailing list (see <ulink url="http://cygwin.com/problems.html">http://cygwin.com/problems.html</ulink> for problem
 | 
						|
reporting guidelines).  If you wish to go back to the older version of the
 | 
						|
DLL, again, close all Cygwin processes, delete
 | 
						|
<literal>C:\cygwin\bin\cygwin1.dll</literal>, and
 | 
						|
rename <literal>C:\cygwin\bin\cygwin1-prev.dll</literal> back to
 | 
						|
<literal>C:\cygwin\bin\cygwin1.dll</literal> (again assuming that your "<literal>/</literal>" is
 | 
						|
<literal>C:\cygwin</literal>).  To restore the rest of the snapshot
 | 
						|
files, reinstall the "<literal>cygwin</literal>" package using Setup.
 | 
						|
</para>
 | 
						|
 | 
						|
</answer></qandaentry>
 | 
						|
 | 
						|
<qandaentry id="faq.setup.mirror">
 | 
						|
<question><para>Can Cygwin Setup maintain a ``mirror''?</para></question>
 | 
						|
<answer>
 | 
						|
 | 
						|
<para>NO.  Cygwin Setup cannot do this for you.  Use a tool designed for
 | 
						|
this purpose.  See <ulink url="http://rsync.samba.org/">http://rsync.samba.org/</ulink>,
 | 
						|
<ulink url="http://wget.sunsite.dk/">http://wget.sunsite.dk/</ulink> for utilities that can do this for you.
 | 
						|
For more information on setting up a custom Cygwin package server, see
 | 
						|
the Cygwin Setup homepage at
 | 
						|
<ulink url="http://sources.redhat.com/cygwin-apps/setup.html">http://sources.redhat.com/cygwin-apps/setup.html</ulink>.
 | 
						|
</para>
 | 
						|
</answer></qandaentry>
 | 
						|
 | 
						|
<qandaentry id="faq.setup.cd">
 | 
						|
<question><para>How can I make my own portable Cygwin on CD?</para></question>
 | 
						|
<answer>
 | 
						|
 | 
						|
<para>While some users have successfully done this, for example Indiana
 | 
						|
University's XLiveCD <ulink url="http://xlivecd.indiana.edu/">http://xlivecd.indiana.edu/</ulink>, there is no
 | 
						|
easy way to do it. Full instructions for constructing a portable Cygwin
 | 
						|
on CD by hand can be found on the mailing list at
 | 
						|
<ulink url="http://www.cygwin.com/ml/cygwin/2003-07/msg01117.html">http://www.cygwin.com/ml/cygwin/2003-07/msg01117.html</ulink>
 | 
						|
(Thanks to fergus at bonhard dot uklinux dot net for these instructions.)
 | 
						|
Please note that these instructions are rather old and are referring to the
 | 
						|
somewhat different setup of a Cygwin 1.5.x release.  As soon as somebody set
 | 
						|
this up for Cygwin 1.7, we might add this information here.
 | 
						|
</para>
 | 
						|
</answer></qandaentry>
 | 
						|
 | 
						|
<qandaentry id="faq.setup.registry">
 | 
						|
<question><para>How do I save, restore, delete, or modify the Cygwin information stored in the registry?</para></question>
 | 
						|
<answer>
 | 
						|
 | 
						|
<para>Since Cygwin 1.7, there's nothing important in the registry anymore,
 | 
						|
except for the installation directory information stored there for the sake
 | 
						|
of setup.exe.  There's nothing left to manipulate anymore.
 | 
						|
</para></answer></qandaentry>
 | 
						|
 |