Modern development environment on dated RHEL

[Elazar Leibovich]

Thanks for your comments.

On Tue, Apr 27, 2010 at 3:07 PM, Tzafrir Cohen <tzafrir at cohens.org.il>wrote:

> On Tue, Apr 27, 2010 at 02:12:41PM +0200, Elazar Leibovich wrote:
> > 1. Yes it is
> >
> http://press.redhat.com/2008/07/24/red-hat-enterprise-linux-47-released-today/
> >
> > 2. Only for development. We have a specific environment for deployment,
> > compiling and testing the end product (which is a good idea anyhow IMHO.
> You
> > don't want the customers be affected by a specific build issue a single
> > developer has).
> >
> > 3. I'm afraid running everything with a VM will be too slow. I'm
> > occasionally running an Ubuntu on a 2 years old laptop with Vista, and
> user
> > experience is not so great.
>
> It wastes resources. But lets you do the real work in a sane way.
>
What hardware did you try that on? We're not having a very new hardware.
There are other issues of course, such as interop with the "real"
environment, etc. Although virtualbox allows you to share filesystem items
between machines quite nicely. And surprise surprise, it *is* supported on
RHEL 4!

>
> >
> > 4. I'm not sure. It's problematic since ClearCase 6 is only supported by
> IBM
> > on RHEL 4.7, and we don't have new CC licenses.
>
> AHHH!
>
> Only RHEL4.7 is supported. However do you think "a completely modified
> (in a non-reproducable way) RHEL 4.7" is supported?
>
Well, if I manage not to change glibc, how can it know I'm having (say) a
brand new KDE with some Qt IDE? Or that I'm using reasonably recent version
of mercurial version control (yes I'm using both an "agile" version control
which is more convenient to quickly keep many small changes, and to search
through history with, and I move "big" baselines to the clearcase when I'm
done). Or scons to build the release.
I believe you can get a reasonably modern development environment to live
within the RHEL space. The only thing I fear is managing it.

>
> I suspect a VM is the cheapest way.
>
> Is the problem only ClearCase itself, or the complete development
> environment?
>
No, just Clearcase.

>
> If only ClearCase: do you actually use it in the filesystem-like method?
>
Do you mean the MVFS? Yes we do, but I'm by no means a ClearCase expert, so
I'll be glad to hear of other methods.

>
> --
> Tzafrir Cohen         | tzafrir at jabber.org | VIM is
> http://tzafrir.org.il |                    | a Mutt's
> tzafrir at cohens.org.il |                    |  best
> tzafrir at debian.org    |                    | friend
>
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