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Re: From installation DVD to original ISO file

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On 04/10/2019 10:58 AM, Thomas Schmitt wrote:
> Hi,
> 
> Richard Owlett wrote:
>> The solutions I was given at the time revolved around using "isoinfo".
>> [...] I've gone in circles trying to find a package including it in
>> *current* Debian repository.
> 
> Isn't it in "genisoimage" ?
> 
>    https://packages.debian.org/stretch/amd64/genisoimage/filelist
> has
>    /usr/bin/isoinfo
> 

My search methodology was faulty.
I hadn't thought of searching packages.debian.org for an included file.
Doing it that way also yields
    https://packages.debian.org/stretch/libcdio-utils
with interesting links at
    https://www.gnu.org/software/libcdio/projects.html

> 
>> # COUNT=$(isoinfo -d -i /dev/cdrom)
>> # dd if=/dev/dvd bs=2048 status=progress count=$COUNT conv=notrunc,noerror > disc.iso
>> Is there a recommended alternative procedure?
> 
>    COUNT=$(expr $(/sbin/isosize /dev/cdrom) / 2048)
> 
> from package "util-linux".
> 

On the man page
      https://manpages.debian.org/stretch/util-linux/isosize.8.en.html
I had seen:
> The size of the file (or block device) holding an iso9660 filesystem
> can be marginally larger than the actual size of the iso9660 filesystem.
> One reason for this is that cd writers are allowed to add "run out"
> sectors at the end of an iso9660 image. 

I wasn't sure if that meant it was not suitable for my purpose.


Thanks

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Thread

From installation DVD to original ISO file. Richard Owlett <rowlett@cloud85.net> - 2019-04-10 17:30 +0200
  Re: From installation DVD to original ISO file "Thomas Schmitt" <scdbackup@gmx.net> - 2019-04-10 18:00 +0200
    Re: From installation DVD to original ISO file Richard Owlett <rowlett@cloud85.net> - 2019-04-10 19:30 +0200
      Re: From installation DVD to original ISO file "Thomas Schmitt" <scdbackup@gmx.net> - 2019-04-10 20:10 +0200
  Re: From installation DVD to original ISO file. <tomas@tuxteam.de> - 2019-04-10 18:50 +0200
    Re: From installation DVD to original ISO file. Richard Owlett <rowlett@cloud85.net> - 2019-04-10 19:30 +0200
  Re: From installation DVD to original ISO file. David <bouncingcats@gmail.com> - 2019-04-12 06:10 +0200

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