Glitch-free texlive-collection-basic.sh and other uses of setup v.2.510.2.2

[Fergus]

On today's update of texlive-collection-basic I got the exit message
Package: texlive-collection-basic
     texlive-collection-basic.sh exit code 148
which typically seems to follow most texlive installations.
At subsequent uses of setup, even when there is nothing new to install, 
the "unknown package" /etc/postinstall/texlive-collection-basic.sh is 
again run, resulting in the same exit code, and this behaviour is 
recurrent. The attempt takes an unbelievable 4 minutes each time, even 
on a moderately new and fast machine (XP Pro SP3).
There is a way round this. I use good old setup v.2.510.2.2 (c. 2005) 
having deleted "message:" entries from setup.ini , which this old 
version doesn't understand. Hey presto, the script is run, exits just 
fine, and there is no recurrence. There may be other ways, but I don't 
know them and can't remember reading about them here.

With the editing of setup.ini described above which is a bit of a chore, 
my preference is to use v.2.510 for everything, including brand new 
installs both of 1.7 and the Legacy 1.5. Doing this, I have not 
experienced another setup annoyance, where a request to install Cygwin 
at location H:\ is ignored, and the installation proceeds remorselessly 
to C:\cygwin\.

Unfortunately, despite a clear chain of .. requires: -> requires: -> 
requires: .. in setup.ini, I found after using v.2.510.2.2 for a brand 
new install, one missing dependency. I'm not exactly certain how an 
engine that works its way correctly through very many essentially 
identical instruction lists can have slipped up with just one, but this 
did occur [can't remember details but they are there somewhere on this 
list and I will look for them]. This rather dented my confidence in and 
reliance upon this old favourite. Otherwise I would use it the whole time.

Fergus

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