rollback procedure, was: what determines cygwin path?

[Qwer Zxcv <partner4progress@yahoo.com>]

Qwer Zxcv wrote:
>>>> So what I'd like to know is, how is cygwin's path determined?
>>>> (Apparently not entirely by the windows path, at least not by
>>>> default.) And how do I fix it?

Max Bowsher wrote:
>>> Windows + /etc/profile + any user customisation.

Qwer Zxcv wrote:
>> What I don't know is, in

>> > PATH="/usr/local/bin:/usr/bin:/bin:$PATH"

>> * Where are

>>   /usr/local/bin:/usr/bin:/bin

>>   set?

Igor Pechtchanski wrote:
> "man mount"

Doesn't help much when yr cygwin's down, but, find another box and DOH!
I forgot the mount table was in the REGISTRY ! So I fix that, and now
my old cygwin is working again :-)

Despite the apparent deprecation of this line of inquiry, I'd still
like to document rollback for those who are inclined to "install
defensively." Does the following rollback procedure sound more-or-less
correct/complete? (Note that it assumes that one's new cygwin is not
working.)

0 Change windows path to point (only) to the old version. Cygwin
  references should precede windows references.

1 Use 'regedit' to ensure that entries in 

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2

  notably

/usr/bin
/usr/lib
/usr/X11R6/lib/X11/fonts

  point (only) to the old version.

2 Find or recreate a shortcut to one's old bash-running batchfile.

3 Run bash, check for weirdness.

4 'cygcheck -svr', check for weirdness.


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