Re: burning a CD for distro from an archived iso file...

["Michael Fothergill" <mikef20000@hotmail.com>]

> From: "Miguel J. Jiménez" <MiguelJose.Jimenez@isotrol.com>
> To: Michael Fothergill <mikef20000@hotmail.com>
> CC: debian-user@lists.debian.org
> Subject: Re: burning a CD for distro from an archived iso file...
> Date: Tue, 12 Jun 2007 13:57:44 +0200
>
> Michael Fothergill escribió:
> > OK, I went in the /tmp area and to my pleasure I found the unmessed with 
> > iso file.  So I dumped it in the CD burner and now I have the CD I need.  
> > I have moved the iso file to my/home directory in case I find there are 
> > errors in the CD I burned when I come to install the OS.....  In Debian 
> > Etch installations I run the installer and check the integrity of each CD 
> > before I install with them.  There are some MD5sum things in the 
> > repository but I am not sure how to use them to check the integrity of the 
> > CD I burnt.
> >
> > Maybe the new distro has been modified enough so it will properly check 
> > the integrity of the CD itself. I will try it....
> >
> > Now I can delete all these silly files created by this silly archive 
> > software that nobody knows what to do with anyway....
> >
> > Thanks
> >
> > Regards
> >
> > Michael Fothergill
>
> The md5 files are to check the integrity of the downloaded ISO:
>
> $> md5sum <filename>

Hang on a minute.  Does this mean I download some md sum files as well as 
the iso file and then put the iso file and the md sum files in the same 
directory and then run md5sum <mydistro.iso>?

If so, and even if the iso file is error free and if the CD burner thinks it 
has burned the CD perfectly, there still could be errors in the CD image...

I test for these by loading the CD into the computer, booting with it, 
loading the DEbian installer and then running the CD integrity check.  I 
have found errors in CD images by doing this.  There was nothing wrong with 
the isofiles I downloaded because burning the CD images for a second time 
from them resulted in a perfect CD image that passed Debian installer 
integrity test and successfully installed the OS.........

Is there a way to use md sum files to check CD image itself once it has been 
burnt not just the iso file after it was downloaded?


Regards

Michael Fothergill




> It will take some time to check... the hash must be equal on both ends :-)
>
> --
> .---------------------------------------------------------------------.
> | Miguel J. Jiménez                                                   |
> | Programador Senior                                                  |
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