How to install Cygwin
Q: How can I do an offline install?
A1: Install without access to the internet, using a local package repository
Create a local copy of the package repository e.g. by using rsync on one of the mirrors.
Move that copy to an accessible location, or copy it to removable media.
Run setup, and enter the URL, path or UNC path of that repository when prompted to "Choose A Download Site".
A2: Install without access to the internet, using setup's separate download and install actions.
Run setup in "Download without installing" mode somewhere it can access a mirror, with the desired packages selected.
Run setup again in "Install from local directory" mode, with the same "Local package directory", and set of packages selected.
Q: How can I install the last Cygwin version for an old, unsupported Windows?
A: Run setup with the options --allow-unsupported-windows --no-verify --only-site --site circa_URL:
Windows version Setup version Cygwin DLL version circa URL
Windows Vista
Windows Server 2008
(NT 6.0+)
32-bit Windows current 3.3.? TBD
Windows XP SP3
Windows Server 2003
(NT 5.1+) 2.909 2.5.2 32-bit: http://ctm.crouchingtigerhiddenfruitbat.or...
64-bit: http://ctm.crouchingtigerhiddenfruitbat.or...
Windows 2000
(NT 5.0+)
Windows XP SP2
2.774 1.7.18 32-bit: http://ctm.crouchingtigerhiddenfruitbat.or...
Thanks to the Cygwin Time Machine for providing this archive.
Q: How do I help improve setup?
A: See the setup project page for more information.