From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with archive (Exim 4.43) id 1OEqXS-00075M-AF for mharc-grub-devel@gnu.org; Wed, 19 May 2010 17:10:50 -0400 Received: from [140.186.70.92] (port=58192 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OEqXP-00072u-NQ for grub-devel@gnu.org; Wed, 19 May 2010 17:10:48 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OEqXO-0006X2-2W for grub-devel@gnu.org; Wed, 19 May 2010 17:10:47 -0400 Received: from mail-ww0-f41.google.com ([74.125.82.41]:50045) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OEqXN-0006Wx-Ti for grub-devel@gnu.org; Wed, 19 May 2010 17:10:46 -0400 Received: by wwb18 with SMTP id 18so855wwb.0 for ; Wed, 19 May 2010 14:10:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from :user-agent:mime-version:to:subject:references:in-reply-to :x-enigmail-version:content-type; bh=JHIuzELd1dZHObedeACC15uy3wYD67fgCGEdaVHLR+E=; b=a0+mGaGSmrco1WBjMVCb1F/iil9kaA9JkcnvORfbsY1xSC7iJMBLXuriPUZl6Wuzik 2Z997dyArG3Fab0P3IEB3i1hIG0Y/xbhN1JHrmsmzrZm0xS1F/OKZmaqJNo7GIrQFw2l LF3BQD2SXU7B/OWhPNufBO1KvadkitZrTipOU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:x-enigmail-version:content-type; b=nvLQyyLeA4Rj9wkzMEgNO+HlTRS6RNnxvVHfsUnYiPEQUDkn7J/bqk6KmzngkgNV8d mz6OwggL8A4phzf9UiIqrkhsayvA1M+YylJJveBz4DWhzMojDIvPyJ1mya67JSHeR5uO z00tMc6qD4YyYkexKfhk4dHL8EU4UlP01UOSk= Received: by 10.227.129.15 with SMTP id m15mr130699wbs.170.1274302974198; Wed, 19 May 2010 14:02:54 -0700 (PDT) Received: from debian.bg45.phnet (gprs35.swisscom-mobile.ch [193.247.250.35]) by mx.google.com with ESMTPS id t2sm21159075gve.19.2010.05.19.14.02.51 (version=TLSv1/SSLv3 cipher=RC4-MD5); Wed, 19 May 2010 14:02:53 -0700 (PDT) Message-ID: <4BF451F2.9080906@gmail.com> Date: Wed, 19 May 2010 23:02:42 +0200 From: =?UTF-8?B?VmxhZGltaXIgJ8+GLWNvZGVyL3BoY29kZXInIFNlcmJpbmVua28=?= User-Agent: Mozilla-Thunderbird 2.0.0.22 (X11/20091109) MIME-Version: 1.0 To: The development of GNU GRUB References: <20100519121335.GU21862@riva.ucam.org> <106265329817470@192.168.2.69> In-Reply-To: <106265329817470@192.168.2.69> X-Enigmail-Version: 0.95.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="------------enig264769FBEDE3EFAA97524A6C" X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) Subject: Re: Migrations to xorriso X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: The development of GNU GRUB List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 May 2010 21:10:49 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig264769FBEDE3EFAA97524A6C Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Thomas Schmitt wrote: > Hi, > > =20 >>> - Option --diet saves about 400 kB of image >>> size without losing much benefit. >>> =20 >> If it doesn't lose much, >> why would it not be the default? >> =20 > > Maybe one should revert the default and offer > an option > --multi-session-toc > instead ? > > =20 As said in another mail size saving matters only for floppy. Otherwise I prefer the most standard way possible > =20 >> Or, put another way, why would >> somebody want to turn this option off? >> =20 > > I could want a bootable multi-session backup > on USB stick with the opportunity to mount the > backup state of two weeks ago. > For that i'd start with a rescue system created > by grub-mkrescue, add my base backup as second > session and daily updates as further sessions. > > > The extra 64 kB to 126 kB make sure that the > older sessions of a multi-session ISO image can > be detected and mounted. Useful with incremental > backups on regular files, USB sticks, DVD+RW or > BD-RE media. > But not so much of interest with a single session > rescue image. > > Without this extra space one can still add new > sessions but will always see the youngest one as > the only session of the image. (growisofs does > it that way.) > If the first session ends up on sequential media > (CD-R[W], DVD-R, DVD+R, BD-R) then further > multi-session will be managed by the drive > anyway. > > > =20 Puppy linux does that. I think it's sensible. However it's up to distributors and individual users whether to make advantage of such features. >> Useless use of cat. >> =20 > > Not in this case. xorriso calls fstat(2) to > determine the semantics of the given output file. > Option -o "${output_image}" or a redirection > by >"${output_image}" would both reveil type > S_IFREG. > But for the diet case i want S_ISCHR or S_IFIFO > so that the output "media" appears as sequential > rather than as overwriteable. > > > Have a nice day :) > > Thomas > > > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > http://lists.gnu.org/mailman/listinfo/grub-devel > > =20 --=20 Regards Vladimir '=CF=86-coder/phcoder' Serbinenko --------------enig264769FBEDE3EFAA97524A6C Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iF4EAREKAAYFAkv0UfIACgkQNak7dOguQglcjwD+MNWTuRpa22+OnFrB5oHIJVx6 4+3AV4BcmE1VdJNu1ggA/3yM7XagEJZD2CmhMsAH51feukY8TdYxL/6G52K4W7ni =hFxx -----END PGP SIGNATURE----- --------------enig264769FBEDE3EFAA97524A6C--