Date: Tue, 21 Mar 2017 17:38:30 +0100 From: Polytropon <freebsd@edvax.de> To: galtsev@kicp.uchicago.edu Cc: byrnejb@harte-lyne.ca, freebsd-questions@freebsd.org Subject: Re: Unable to create bootable dvd Message-ID: <20170321173830.a98fe393.freebsd@edvax.de> In-Reply-To: <19840.128.135.52.6.1490113056.squirrel@cosmo.uchicago.edu> References: <fa923d4a19e727e2093b3f23a6a79e9b.squirrel@webmail.harte-lyne.ca> <19840.128.135.52.6.1490113056.squirrel@cosmo.uchicago.edu>
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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... -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...
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