Unable to create bootable dvd

[Valeri Galtsev]

On Tue, March 21, 2017 11:38 am, Polytropon wrote:
> On Tue, 21 Mar 2017 11:17:36 -0500 (CDT), Valeri Galtsev wrote:
>>
>> On Tue, March 21, 2017 11:04 am, James B. Byrne wrote:
>> > On Mon, March 20, 2017 14:32, Valeri Galtsev wrote:
>> >> My hunch is: option "-dvd-compat" screws things up making it not
>> > bootable.
>> >> That option is only relevant to creation of video DVD ROMs
>> >> (main goal of it is re-arrange the track so that table of
>> >> contents files are the first onces along the track - which
>> >> is necessary in stand alone DVD players).
>> >> I do use this command all the time to burn bootable media
>> >> (FreeBSD, CentOS, Debian, Ubuntu...) and all of them work
>> >> well for me. I do not use "-speed" option, but it shouldn't
>> >> matter, and using slowest speed as you specify may help getting
>> >> best possible quality of burn result. Anyway,
>> >> here is command line from my command history:
>> >> growisofs -Z
>> >> /dev/dvd=/data/system-media/debian-8.6.0-amd64-i386-netinst.iso
>> >> I hope, this helps.
>> >> Valeri
>> >
>> > I created multiple dvds, some with and some without -dvd-compat and
>> > -speed=1.  There was no apparent difference in effect.  I had similar
>> > problems with usb flash media.  Funnily enough I had no problem with
>> > either medium if I used FreeBSD-10.3 images.
>>
>> Aha, then I was wrong about -dvd-compat screwing it up when you burn
>> image, not a collection of files... You learn something every day;
>> thanks
>> for sharing.
>
> I've been using -dvd-compat in combination with image files
> and never had a problem with booting (live system image ISOs).
> In "man growisofs", one of the examples explicitely reads:
>
> 	To use growisofs to write a pre-mastered ISO-image to a DVD:
>
> 	    growisofs -dvd-compat -Z /dev/dvd=image.iso
>
> So this seems to be the correct usage...
>

Right. Indeed, according to man page -dvd-compat just makes disk with
maximum compatibility with DVD-ROM/Video disks (aka "pressed" DVDs).

I have confused this option when I said "my hunch is..." with an option
"-dvd-video" of mkisofs command. It is "mkisofs -dvd-video..." that
re-arranges TOC files to have them be first in the created track
(stream...) It's been a long time since I composed DVDs ;-(

Valeri

>
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> --
> Polytropon
> Magdeburg, Germany
> Happy FreeBSD user since 4.0
> Andra moi ennepe, Mousa, ...
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++++++++++++++++++++++++++++++++++++++++
Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247
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