A vexing installation problem

Mon Nov 29 22:10:00 GMT 2004

On Mon, Nov 29, 2004 at 15:34:00 PM -0500, Christopher Faylor wrote:
> Sounds like you haven't read http://cygwin.com/problems.html, in that
> case.

I read it quickly for exactly this reason, and then misinterpreted
"just attach it as a straight text file". Just a moment of idiocy.
> cygcheck already told us that there were no duplicate cygwin1.dll's on
> your path. You need to look for other cygwin1.dll's throughout your
> system.

Ok, I've done that too.
> Try removing things from your environment like HOME, HOMEPATH, TEMP,
> etc. and make your PATH as minimal as possible.

I've removed everything from my environment excepth PATH=. which seems
about as minimal as it can get. Actually, unsetting PATH completely
gives the same behavior; that's slightly disconcerting.
> If that doesn't work, entirely wipe out c:\local\cygwin, run regedit,
> and remove the "HKLM/Cygnus Solutions" and the HKCU/Cygnus Solutions
> keys entirely. Then reboot and try reinstalling just a minimal
> installation.

I've tried exactly that, several times, removing all Cyg* keys.
> Also try installing as another user.

I can't easily do this one at the moment.
The best clue I have at the moment is that a 1.5.5-1 cygwin1.dll
appears to be fully functional, but a 1.5.6-1 cygwin1.dll with the
same (old) executables is fully nonfunctional. All 1.3.* releases
seem ok; and newer 1.5.* releases (1.5.9-1, 1.5.11-1, 1.5.12-1) all
have exactly the same behavior as 1.5.6-1.
 C:\>set
 PATH=.
 C:\>copy cyg-1.5.6.dll cygwin1.dll
 1 file(s) copied.
 C:\>mount
 C:\>copy cyg-1.5.5.dll cygwin1.dll
 Overwrite cygwin1.dll? (Yes/No/All): y
 1 file(s) copied.
 C:\>mount
 c: on /cygdrive/c type user (textmode,noumount)
 h: on /cygdrive/h type user (textmode,noumount)
-- Dave
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