159 lines
6.4 KiB
Plaintext
159 lines
6.4 KiB
Plaintext
@chapter Installation Instructions
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@section Contents
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Unlike previous net releases such as B20.1 and earlier, there is no
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monolithic "full" or "usertools" installation. Rather, you can pick and
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choose the packages you wish to install, and update them individually.
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The following packages are available with the current release, in their
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respective directories:
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@table @samp
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@item latest
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bison common diff flex gperf inetutils make opengl shellutils texinfo
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ash byacc crypt expect gawk grep less man patch tar textutils bash bzip2
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cygwin fileutils gcc groff login sed tcltk time binutils clear dejagnu
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findutils gdb gzip m4 mt termcap vim
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@item contrib
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cvs gdbm jbigkit jpeg libpng tiff zlib
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@end table
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Full source code is available for all packages and tools.
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There is one recommended way to install Cygwin, which is to use the GUI
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installer @code{setup.exe}. There are some variations on how you go
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about that.
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Do it any other way, and 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 elsewhere, then by all means report it to the
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mailing list.
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@section Installation using the @code{setup.exe} program
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@strong{IMPORTANT: First read the README file in the @code{latest}
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directory at any ftp mirror. DO THIS NOW! Information in the README
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file is not repeated here. You can find a mirror site near you from
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@file{http://sources.redhat.com/cygwin/mirrors.html}.}
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The @code{setup.exe} program is the recommended way to install Cygwin,
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but it is still a work in progress. Expect features and functionality
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to change. For this reason, it is a good idea to note the version and
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build time reported by @code{setup.exe} when you run it. This will help
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diagnose problems, should you have any. Check the cygwin mailing list
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for the latest news about @code{setup.exe}.
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@subsection Why not install in C:\?
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The @code{setup.exe} program will prompt you for a "root" directory.
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The default is 'C:\cygwin', but you can change it. You are urged not to
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choose something like 'C:\' (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 'etc', 'lib' and 'bin' could easily be corrupted by other (non-Cygwin)
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applications or packages that use \etc, \lib or \bin. Perhaps there is
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no conflict now, but who knows what you might install in the future?
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It's also just good common sense to segregate your Cygwin "filesystems"
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from the rest of your Windows system disk. (In the past, there had been
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genuine bugs that would cause problems for people who installed in C:\,
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but we believe those are gone now.)
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@subsection Can I use the new setup to update a B18, B19, B20, B20.1 or CD-ROM (1.0) installation of Cygwin?
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No, you must start from scratch with the new setup. The overall
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structure has changed so much that it would be silly to try to
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accomodate old installations of Cygwin. You'll probably be much better
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off with a whole new installation anyway. You may backup or rename your
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old installation first, or just install the new one somewhere else. Be
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sure to make note of your current mount table, because this will be
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overwritten during the new setup.
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Once you've installed the latest net release, the new setup will update
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just the individual packages that need it.
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@subsection The README says I should turn off anti-virus software. Isn't that dangerous?
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Only Network Associates (formerly McAfee) products have been reported to
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"hang" when extracting Cygwin tar archives. Other products should not
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cause problems, if you prefer to keep them running.
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Otherwise, you can download @code{setup.exe} and scan it. Then turn off
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the anti-virus software, then run setup to download and extract all the
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tar files. Then re-activate your anti-virus software and scan
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everything in C:\cygwin (or wherever you chose to install). This should
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be safe. (As long as nobody substitutes a malicious setup.exe ...)
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@subsection What packages should I download?
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Just get everything, if you have room for it. But if you must be
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selective:
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@table @samp
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@item cygwin
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This is the minimum core, consisting of the cygwin1.dll and a few
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commands (like @code{mount}). Not much else, and no shell!
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@item bash
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This is the default interactive command shell for cygwin. If you don't
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install @samp{bash}, then the "Cygwin Bash Shell" shortcut that setup
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creates for you won't actually do anything.
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@item ash
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This is often forgotten because it's not obvious that @samp{ash}
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contains @code{/bin/sh}, which is essential for running scripts, (and
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@code{make} and ...).
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@end table
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If you want to build programs, of course you'll need @samp{gcc}, but
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you'll also need @samp{binutils}, probably @samp{make} and
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@samp{fileutils}, and possibly lots more. (Again, consider just getting
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everything!)
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@subsection What if setup fails?
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If you are downloading from the internet, setup will fail if it cannot
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download the list of mirrors at
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@file{http://sources.redhat.com/cygwin/mirrors.html}. It could be that
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the network is too busy. Similarly for an ftp download site that isn't
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working. Try another mirror, or try again later.
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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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@subsection What's the difference between packages in @samp{latest} and @samp{contrib}?
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Good question! That very issue is sometimes debated on the
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@samp{cygwin-apps} mailing list. Check the list archives if you want to
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know more.
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@subsection How do I uninstall Cygwin?
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Setup has no automatic uninstall facility. Just delete everything
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manually:
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@itemize @bullet
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@item Cygwin shortcuts on the Desktop and Start Menu
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@item The registry tree @samp{Software\Cygnus Solutions} under
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@code{HKEY_LOCAL_MACHINE} and/or @code{HKEY_CURRENT_USER}.
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@item Anything under the Cygwin root folder, @samp{C:\cygwin} by
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default.
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@item Anything created by setup in its temporary working directory.
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@end itemize
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It's up to you to deal with other changes you made to your system, such
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as installing the inetd service, altering system paths, etc. Setup
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would not have done any of these things for you.
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