[plug] not too dumb I hope

Peter Taekema demo9 at gswd.com
Tue May 27 17:27:02 WST 2008

Hi Kev,

On Tue, 2008-05-27 at 16:59 +0800, Kev wrote:
> Hi all,
> I hope my question isn't too dumb, but I just can't visualise what's 
> going to happen when I virtualise my idea.
> Say I have 2 physical HDDs, /apart/ from the drive where my system and 
> home directory is mounted, and each of which has only 1 partition.  If I 
> mount one as, say, ~kev/music and another one as ~/kev/music/favourites 
> will there be any collision of any sort?  For instance, when I check how 
> much space I've used on each will the figures for ~kev/music also 
> include whatever stuff is in ~/kev/music/favoutites?  While the latter 
> is a separate HDD, it is mounted as a subdirectory of the former. 

I don't believe in 'dumb questions'!

I understand what you are trying to 'visualise' and as far as I can
tell, it won't be a problem.  

The moment you 'mount' a drive at a certain point in your directory
tree, that directory in effect gets 'hidden' (from the current file
system).  In other words, even if the directory ~kev/music/favourites
already has stuff in it, the moment you mount another drive at that
point, it will cease to be visible and/or available until you un-mount
it.  You will only 'see' the contents of the newly mounted drive.

The new 'mounted' directory 'favourites' doesn't get counted as part of
the physical drive that 'music' is on, when you check drive space,
because that is done at a different level...

Does that make sense?

> I think my seniors' moments are coming all too frequently now-a-days.  
> My head gets in a spin just trying to visualise what it is I'm wanting 
> to do.

I relate completely to the 'seniors' moments!  ;-)

> Tia
> Kev


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