From owner-freebsd-current@freebsd.org Wed Jul 13 13:52:15 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 31E9FB97F8F for ; Wed, 13 Jul 2016 13:52:15 +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 144F51B46; Wed, 13 Jul 2016 13:52:15 +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 C801D1212; Wed, 13 Jul 2016 13:52:14 +0000 (UTC) (envelope-from gjb@FreeBSD.org) Date: Wed, 13 Jul 2016 13:52:13 +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: <20160713135213.GH1520@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> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="U3BNvdZEnlJXqmh+" Content-Disposition: inline In-Reply-To: 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 13:52:15 -0000 --U3BNvdZEnlJXqmh+ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable 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 FreeBSD > 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 wi= th > unique label and then use GEOM_LABEL to easily find relevant file system = 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 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. Glen --U3BNvdZEnlJXqmh+ Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJXhkeHAAoJEAMUWKVHj+KT/c8P/1537HGm7AeuuPRR3XqzgUNt Dy4ssOD4r/lLCEv3ft/ILipxbr9/p3jggUkpzxzmSGeUWLM5l2vV/bjMDQ2oKZ22 KWAN0fLWVpKbxCntNTjKrxHrSj0skG7LrLc9dq9SpLXClRQrZDGCtiDgWhMQzE2H 4Ls9ZPKhcQy74XtoTnd9qAPjRRjTqi9ldDfO1fJ/qA1SBvjVKYZh8kVHfQxhaC4S NFHYo6qxb8+lZt/Zy2U7fYfR65h+8XdoVAvzorjAu+YwN6fsLPi3i04Anhm9VzkO dU24E1Exs1YKpp1vOtrhjgugg0mdm8iSISQWbjoRdP2xJEtiLCLln+/DqPE73JZT kEHRgCINzrknKWQf5e7hpY3ucCmx/2I22XvZQLRhGZaDmlMaq+0OYDufbTr/pewT LzKesQEzQHC/OHjbswW2PwDfuPAMxall9YsYSqGx29QIOt7Tt6WbJkpoHSm/OmqJ c8pd8Dg2vdEZQughfCDU0T0imFSexJZRO+kTVU8beBXvJzVU/hY477Q4y6tojPIF p5ehD8676+oWAyUYcu3RDZBwU6hITzOh6etW1qS3ZMGIOil5huGiKQuRe9becMKe +ieFzeVw84RVSkL5KUHjn80mlbMHWtf/NrK2yO5WSKbt3Vo6cCOyHOKcjCM4Us70 J2NNDea4uSzpCmAca6BC =wtLX -----END PGP SIGNATURE----- --U3BNvdZEnlJXqmh+--