FreeBSD-11.0-BETA1-amd64-disc1.iso is too big for my 700MB CD-r

[Chris H]

On Mon, 11 Jul 2016 18:39:51 -0400 Allan Jude <allanjude at freebsd.org> wrote

> On 2016-07-11 18:33, Chris H wrote:
> > On Tue, 12 Jul 2016 00:46:04 +0300 Slawa Olhovchenkov <slw at zxy.spb.ru>
> > wrote >
> >> On Mon, Jul 11, 2016 at 09:41:44PM +0000, Glen Barber wrote:
> >>
> >>> On Mon, Jul 11, 2016 at 03:32:34PM -0600, Alan Somers wrote:
> >>>>> On Mon, Jul 11, 2016 at 2:01 PM, Ronald Klop <ronald-lists at klop.ws>
> >>>> wrote: >> Hi,
> >>>>>>
> >>>>>> Just downloaded the amd64 BETA1 ISO (873MB) and tried to burn a CD on
> >>>>>> Windows 10. It complained that the ISO is too big for my 700 MB CD-r.
> >>>>>>
> >>>>>> The bootonly iso (281MB) burns and runs ok.
> >>>>>>
> >>>>>> Regards,
> >>>>>> Ronald.
> >>>>
> >>>> Please open a PR.  Those images should be able to fit on a CD.
> >>>
> >>> This was actually a known "going to be problem" thing for 11.0.  I'm
> >>> looking into how to fix this for 11.0-RELEASE, but right now, there is
> >>> not much more we can exclude from it. :(
> > Can't it use the compressed iso format, or is it already using that
> > format. Sorry haven't checked.
> >>
> >> Reduce GENERIC to MINIMAL?
> >
> > --Chris
> >
> >
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> 
> 380MB of the data on disc1 is the distsets, which are already .txz (max 
> compression). That doesn't leave much room for the live OS on the disk.
I'm not sure I was clear enough when I responded. So, just for the record;
I meant the ISO data itself, not the image per se;
that is, not disc-1.iso.txz. But rather mounting a compressed file system.
Be it bz2, or xz(1). I seem to remember tar(1) providing examples about
creating/mounting compressed archives as iso images, and then writing
them as an iso image, that can be later burned to CD/DVD. Another option
that I employ, when creating CD/DVD images, is to take a dump(8) of
the data I intend to create the image of. This method removes the "slack"
from the data/files/dirs, before writing the image -- all the nodes
are contiguous, end-for-end. So there is no wasted space.

> 
> -- 
> Allan Jude

--Chris