[plt-dev] Re: Pre-Release Checklist for v4.2.1

From: Doug Williams (m.douglas.williams at gmail.com)
Date: Tue Jul 21 15:11:31 EDT 2009

Jens Axel found the link:


And, Eli, there is a Doug/Appdata/Local/VirtualStore/Program
Files/PLT/collects/scribblings/main/user directory created on my Vista
machine in the Virtual Store. So, the PLT/collects/scribblings/main/user
directory was apparantly created after the install. I'm not sure why it's
empty, unless the directory itself is the lock.


On Tue, Jul 21, 2009 at 12:44 PM, Eli Barzilay <eli at barzilay.org> wrote:

> On Jul 21, Doug Williams wrote:
> > Eli,
> >
> > I get a different error on my Linux box when I try to load the
> > science collection:
> >
> > with-output-to-file: cannot open output file:
> > "/usr/plt/collects/scribblings/main/user/.setup-plt-marker"
> > (Permission denied; errno=13)
> Ah, that's very useful.
> On Jul 21, Doug Williams wrote:
> > Eli, this seems to be related to the old Vista problem we had before
> > (I think it was Robby that tracked it down) with the virtual store.
> > On Vista, if system files are re-written, the updated copy is
> > written in the Virtual Store - not to the file itself.
> > Unfortunately, these persist over installs of PLT Scheme.
> Yes, I remember that (I think that I was the one who talked about it
> with you, or maybe it was someone else that I talked to), but this is
> only partially related to the problem.  The thing is that running a
> planet setup uses the usual setup code, which is trying to verify that
> all the collections to be setup are writeable by placing these marker
> files -- and also using them to make sure that you're not trying to
> setup the same collection twice (eg, `setup-plt -l foo foo').
> One of the recent changes is that setting up a planet package is
> properly reconstructing the user index, and this is somehow done in a
> way that makes it (try to) lock the main/user collection.
> Matthew -- is there some place in the code I can look at to see if
> there's an easy solution?
> --
>           ((lambda (x) (x x)) (lambda (x) (x x)))          Eli Barzilay:
>                    http://barzilay.org/                   Maze is Life!
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