newbie installation question

[Tena Sakai]

Hi Vince,

I am now finished with downloading.  It is 699 MB and I am
putting it onto CD.  While the CD is being burned, maybe I
can ask you to explain a thing or two?

> If I understand you well... you download an image of 715MB,
> which means it is a CD image, but tried to burn it on a DVD?

Yes, you understand perfectly well.

> No wonder it didn't work... an ISO image is not just a file, it's an
> image of the media (hence it's name).

Hence its name?  I lost you.  The only letter in ISO that I can see
in "image of the media" is I.  What does the rest of the acronym
stand for?  Or is it acronym at all?

> So an "image" of a CD can only be go to a CD media, not DVD!
> And vice versa.  So you must burnt your ISO to a CD not a DVD.

I take your word for it.  But why is that?  Isn't a bit just a bit?  Why
can't a set of bits put onto CD and not DVD?

Thank you in advance.

Regards,

Tena

--- On Tue, 6/2/09, Vincent Trouilliez <vincent.trouilliez at modulonet.fr> wrote:

From: Vincent Trouilliez <vincent.trouilliez at modulonet.fr>
Subject: Re: newbie installation question
To: ubuntu-users at lists.ubuntu.com
Date: Tuesday, June 2, 2009, 8:57 PM

On Tue, 2 Jun 2009 20:27:20 -0700 (PDT)
Tena Sakai <sakaitena at yahoo.com> wrote:

> Hi,
> 
> > Did you also tell the computer to boot off the disc?
> Yes, but more in a bit.
> 
> The image I downloaded is 715 MB.  I tried to burn CD,
> instead of DVD, but CD has capacity (after formatted) of
> 690 MB and I am short of 25 MB.  As such, Roxio refuses
> to do it.
> 
> Now back to the point A.
> I was playing with boot option.  The set up I had was that
> go to DVD first, and if that fails then boot off hard drive.
> I changed that and got rid of the second option (hard drive).
> Then the following came to the screen:
> "No bootable devices --strike F1 to retry boot, F2 for setup
> utility, Press F5 to run onboard diagnostics."
> 
> So this means that the DVD I burned is just not bootable.
> I see no other option, though.
> 
> Any more ideas?


If I understand you well... you download an image of 715MB, which means
it is a CD image, but tried to burn it on a DVD ? No wonder it didn't
work... an ISO image is not just a file, it's an image of the media
(hence it's name). So an "image" of a CD can only be go to a CD media,
not DVD ! And vice versa.
So you must burnt your ISO to a CD not a DVD. 
To know if you ahve burned it as an image and not just as a regular
file, after you have burned it, read the CD and see what the Windows
file manager shows: if it show a single file (hte ISO file) you did it
wrong. If the CD contains contains a dozen directories, then you did it
right ;-)
The ISO is 715MB hence a little too big to fit on the CD ? Hmm, where
did you get your ISO from ? Normally Ubuntu work hard to keep the ISO
files in the 700MB limit precisely so that people can burn it.

Indeed, a look at Ubuntu's download location for CD images shows that
they are all under 700MB:

http://releases.ubuntu.com/jaunty


--
Vince

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