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Re: Problems getting Debian DVD to work (Re: Confusion)

On 5/9/2014 7:50 PM, Steve Litt wrote:

On Sat, 10 May 2014 05:44:11 +0800
Testosticore <testosticore@openmailbox.org> wrote:



On Saturday, 10 May, 2014 12:13 AM, Steve Litt wrote:

On Fri, 09 May 2014 09:54:04 -0500
"John W. Foster" <jfoster81747@gmail.com> wrote:


On Thu, 2014-05-08 at 16:31 +0930, josh wrote:

Hi,

When one has a problem with any GNU/Linux distribution and goes to

[clip]


Am I missing something obvious here?

Regards,

Josh.

Well I'm gonna ask the obvious:
Did you burn it as a ".iso file" or did you burn it as an image,


[clip]


What's the difference between an image and an .iso?

Thanks,

SteveT

Steve Litt                *  http://www.troubleshooters.com/
Troubleshooting Training  *  Human Performance




I think John is asking whether Josh burned the ISO file onto the DVD
rather than (correctly) the DVD image contained in the ISO file.


Thanks Testosticore,

At this point, I think we should all forget I asked that question,
because neither your explanation nor Joel Rees' explanation caused me
to understand this distinction, and yet:

1) It seems like everyone else understands it

2) In spite of my complete unknowledge of the difference between these
    two words, I can convert an iso or a udf to an optical disc, and I
    can convert an optical disc to an iso or udf (as appropriate), so my
    mental block isn't hurting me.

I think everyone has little dark corners of stupid tucked away in the
far reaches of their brains, and we've just stumbled upon one of mine,
but it's not hurting the way I compute.

:-) And Joel, I wasn't sandbagging or being rhetorical, I really don't
know, and I can totally understand consternation as you watch me work
with iso's (and presumably images) without understanding the
difference. :-)

AND, given my situation, it appears the original subject of this thread
turned out to be exactly true. I have to end this email now before a
break a rib laughing.

Thanks,

SteveT

Steve Litt                *  http://www.troubleshooters.com/
Troubleshooting Training  *  Human Performance




Steve,
It's not that complicated. An .iso is a file containing a disk image. It is not the disk image itself.
You can create a disk from the file, via several different means (as others have indicated). If the .iso file is from a bootable disk image, then the resultant disk is bootable. And if you mount the disk, you can see the directories and files on the disk.
But the .iso file is only a file; nothing more, nothing less. It is not bootable, for instance. You also cannot access the directories or files within the .iso file (without special tools). 

Jerry
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