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From: Achim Gratz <Stromeko AT nexgo DOT de>
To: cygwin AT cygwin DOT com
Subject: Re: Windows upgrade
References: <CP2P152MB1793C5EA6179682AFEA781F8DC7F0 AT CP2P152MB1793 DOT LAMP152 DOT PROD DOT OUTLOOK DOT COM>
Date: Wed, 13 Jun 2018 19:01:29 +0200
In-Reply-To: <CP2P152MB1793C5EA6179682AFEA781F8DC7F0@CP2P152MB1793.LAMP152.PROD.OUTLOOK.COM>	(Alejandro Benitez's message of "Tue, 12 Jun 2018 23:30:11 +0000")
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Alejandro Benitez writes:
> I have a 32 bit cygwin installation of 8 years of age in an amd64 PC
> with 2 GB of RAM with Windows 10. So far it's been so good. I never
> had the need to use a 64 bit Windows, but recently 64 bit has become
> mainstream and I also started having low memory issues, so I upgraded
> to 4 GB of RAM. The thing is 32 bit Windows has issues with the whole
> 4 GB of RAM therefore I have quite less available, so I decided I will
> be switching to 64 bit Windows 10 via a clean install (yuk!) when I am
> able.

Well, for an installation that old it would probably be quite helpful if
you did a clean fresh install.  A 32bit Windows can deal just fine with
4GB of memory (not so much with larger memory), you can make about 3GB
of that available to user processes with a boot option (at the expense
of memory reserved for the kernel space).

> I'll be following the steps outlined in this post or a similar one:
>
> https://www.howtogeek.com/228042/how-to-switch-from-32-bit-windows-10-to-64-bit-windows-10/
>
> It's somehow clear I thankfully won't need to upgrade to cygwin64
> until later, I mean it seems I'll be able to still use my 32 bit
> cygwin after I upgrade to 64 bit Windows 10, I just don't know what
> I'll need to tweak / migrate so that the new Windows installation
> installed on top of the same drive that currently holds the 32 bit
> cygwin knows it's there. I'm betting some registry entries and
> environment variables. Does anyone know these tweaks for certain? I
> need cygwin to be fully functional, I mean setup.exe needs to be able
> to install packages, otherwise it won't be of much use.

You can keep using a 32bit Cygwin on any Windows 64bit desktop version
in existence so far, they all come with the WoW64 subsystem that is
necessary to run 32bit Windows applications.

> I might also be wrong and need to install cygwin64 as I upgrade
> Windows. Fingers are crossed.

However, I'd still recommend you make the switch to a 64bit Cygwin if
you have the option.


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

Factory and User Sound Singles for Waldorf Blofeld:
http://Synth.Stromeko.net/Downloads.html#WaldorfSounds

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