From owner-freebsd-current@freebsd.org Wed Jul 13 14:06:04 2016 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id EBC07B983DB for ; Wed, 13 Jul 2016 14:06:04 +0000 (UTC) (envelope-from gjb@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:1900:2254:206c::16:87]) by mx1.freebsd.org (Postfix) with ESMTP id D055D197C; Wed, 13 Jul 2016 14:06:04 +0000 (UTC) (envelope-from gjb@FreeBSD.org) Received: from FreeBSD.org (freefall.freebsd.org [IPv6:2001:1900:2254:206c::16:87]) by freefall.freebsd.org (Postfix) with ESMTP id 8F7C41A37; Wed, 13 Jul 2016 14:06:04 +0000 (UTC) (envelope-from gjb@FreeBSD.org) Date: Wed, 13 Jul 2016 14:06:03 +0000 From: Glen Barber To: Maxim Sobolev Cc: FreeBSD Current Subject: Re: FreeBSD-11.0-BETA1-amd64-disc1.iso is too big for my 700MB CD-r Message-ID: <20160713140603.GI1520@FreeBSD.org> References: <20160711214144.GA7465@FreeBSD.org> <20160711214604.GG20831@zxy.spb.ru> <4a7eeee3c2737e9abcb6ba2557630d87@ultimatedns.net> <16f749e5-ca72-de79-651f-d50f9c42309e@freebsd.org> <7d0bd071cfbc78fcb9956e47f186e90b@ultimatedns.net> <20160713135213.GH1520@FreeBSD.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="ev7mvGV+3JQuI2Eo" Content-Disposition: inline In-Reply-To: <20160713135213.GH1520@FreeBSD.org> X-Operating-System: FreeBSD 11.0-CURRENT amd64 X-SCUD-Definition: Sudden Completely Unexpected Dataloss X-SULE-Definition: Sudden Unexpected Learning Event X-PEKBAC-Definition: Problem Exists, Keyboard Between Admin/Computer User-Agent: Mutt/1.5.24 (2015-08-30) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 13 Jul 2016 14:06:05 -0000 --ev7mvGV+3JQuI2Eo Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Jul 13, 2016 at 01:52:13PM +0000, Glen Barber wrote: > On Mon, Jul 11, 2016 at 05:23:32PM -0700, Maxim Sobolev wrote: > > P.S. Just in case if somebody wants to integrate this method into FreeB= SD > > liveCD build, we do a bit of trick there by making normal ISO9660 file > > system with compressed kernel and relevant boot pieces and then also > > sticking in BSD label on the same disk image. It turns out ISO9660 and = BSD > > disklabel structures do not overlap, so it works nicely since 2005 or > > so. Then we append UFS image compressed with mkuzip at the end of it. > > Resulting image can be used just as any ISO would. We also cook up UFS = with > > unique label and then use GEOM_LABEL to easily find relevant file syste= m on > > boot regardless of the physical device name. > >=20 > > mkuzip -dL -S -s 65536 -o ${UZPFILE} ${UFSFILE} > > mkisofs -b boot/${CDBOOT} -no-emul-boot -r -o ${ISOFILE} ${CDIR} > > eval $(stat -s ${UZPFILE}) > > UZPSIZE=3D$((st_size + 2048 - (st_size % 2048))) > > truncate -s ${UZPSIZE} ${UZPFILE} > > eval $(stat -s ${ISOFILE}) > > ISOSIZE=3D${st_size} > > echo "bytes/sector: 2048" = > > > ${TDIR}/label.txt > > echo "sectors/unit: $(((UZPSIZE + ISOSIZE) / 2048))" = >> > > ${TDIR}/label.txt > > echo "a: $((UZPSIZE / 2048)) $((ISOSIZE / 2048)) unused" = >> > > ${TDIR}/label.txt > > echo "c: $(((UZPSIZE + ISOSIZE) / 2048)) 0 unused" = >> > > ${TDIR}/label.txt > > truncate -s $((ISOSIZE + UZPSIZE)) ${ISOFILE} > > disklabel -A -R -f ${ISOFILE} ${TDIR}/label.txt > > truncate -s ${ISOSIZE} ${ISOFILE} > > cat ${UZPFILE} >> ${ISOFILE} > >=20 >=20 > I'm very interested in implementing this, provided it solves the > disc1.iso size issue. Could you provide a bit explanation on what the > variables above represent? At the moment, I'm having trouble parsing > the file paths and input/output paths. >=20 For now, I think ignore my reply. I think I now see what you're doing. Glen --ev7mvGV+3JQuI2Eo Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJXhkrLAAoJEAMUWKVHj+KTM40QAJ2QWqcVsL0Cp1BYVcVEqyzq ONAnizN8SDc4L9PuT1d+JMPuE/qw5c+yHudAiNJ2ufxJNjVyV1dZOllRAdrSIrXa t5Ah+3RzH8EUUxRH8rDaxCC06vh7fMimvgCjA9qAbn7LoQIfHJoRwHPIzgkRjX/0 PfM8I1zaCFbLPiA3xabmHVg0CNjEUZb4yl6T3JQ396rQuadKg7L6J8PKB7MJyJ2a M0I6C8O/dLlHqJUXi8Gb8P4WIkWop3BxL/8J3yWS3r8Aoa0wBq046D3212dD5DPP YthdLXxdT6XlhStEsy2qc1iOVUTwx8x94aFzR2jBwkkL7mBXY5UmpAo82jBHvvD1 tBKA/l+RpyORLzfaJ4QcR0fIjAR2MJ+xSCHd35pcLvuqqeO6970as9dflGPws2vC FEYuEP2T+xCvvsLG8xl4kK5RYJa6L4LnRQB7XuFfBxmm4BO0MBCzCAtv5Yn7q9Ca RlHJmtgpbgFYu1aOGrdjUgepzHIk5wnV4UdYppXy2KDnSTO+fCbJEIeWF4mbHRcp 2BErtW1smnMbWs/OWUMB2hOJpj644o7KqFwuYMfolSELYjaKbJ//fIMvBUh3Q1tu V5W9D0wVaMniU2EYU18qnPGYIiIOaixJ8WnawXUVEyyEUl3LK4P1jOWpRKCBieHX ilcJpOH/Z7LB9Tc+0Uaq =SdUo -----END PGP SIGNATURE----- --ev7mvGV+3JQuI2Eo--