[GTALUG] installing linux while retaining Windows 10

Paul King sciguy at vex.net
Mon Jan 4 21:51:11 UTC 2016

Hi Hugh:

Do you have room for a second HD? My linux boots from a different HD, and the 
only thing modified on the Windows HD is the MBR. Been doing it that way for 
years, with W7, and now with W10 installed.

This way you do not need to do anything to the main HD, and you can render unto 
Gatesware that which belongs to Gatesware.

Paul King

On 4 Jan 2016 at 16:46, D. Hugh Redelmeier wrote:

Date sent:      	Mon, 4 Jan 2016 16:46:55 -0500 (EST)
From:           	"D. Hugh Redelmeier" <hugh at mimosa.com>
To:             	Toronto Linux Users Group <talk at gtalug.org>
Subject:        	[GTALUG] installing linux while retaining Windows 10
Send reply to:  	"D. Hugh Redelmeier" <hugh at mimosa.com>, GTALUG Talk 
<talk at gtalug.org>

> When I buy a PC, it almost always comes with Win 10 these days and I am 
> not brave enough to throw it away.  So I install Linux beside Windows.  
> For this I need to shrink the Windows partition.
> Windows is unwilling to shrink its NTFS partition to less than half
> its original size.  That's because it has placed the Master File Table
> in the middle of the partition and considers it unmovable.  There are
> third party tools that can do this but I don't want to learn about
> them or trust them.
> So use Linux to resize the partition to give Windows less than half of
> the disk.  There are a couple of tricks that you need to know.
> Windows 10, by default, uses something called Fast Startup.  That
> means that when you ask it to shut down, it only hibernates.  I think
> that that means that if you change its partition (or any of several
> other things) while it is shut down, Bad Things might happen.  I think
> that it is best turn off Fast Startup before shutting down Win 10.
> 	Settings:
> 	System:
> 	Power and Sleep:
> 	Additional Power Settings:
> 	Choose what the power buttons do:
> 	Change settings that are currently unavailable:
> 	Under Shutdown Settings, untick: Turn on fast startup (recommended)
> (I don't think that Microsoft wants you to find this.)
> Shutdown Windows 10.
> Boot your favourite Live linux (need not be what you install).
> Run gparted to resize the NTFS partition.
> SUPERSTITIOUS MODE ON /* this seems to be needed */
> 	Immediately shut down Linux.
> 	Reboot Windows (it will repair some damage caused by ntfsresize).
> 	Shut down Windows.
> Install Linux however you wish to.
> You can turn on Windows' fast startup.  But only if Linux and Windows
> share no filesystems.
> ================
> Alternative solution (unreliable report of Giles' approach):
> Before EVER booting Wind 10, install Linux.
> Win 10 first-boot process won't eat a Linux installation.
> ---
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