From mboxrd@z Thu Jan 1 00:00:00 1970 From: Laurent Vivier Subject: Re: Failure to boot CDROM with -drive arg Date: Tue, 08 Jul 2008 17:03:29 +0200 Message-ID: <1215529409.3805.24.camel@frecb07144> References: <20080708083730.GC24934@redhat.com> <20080708091724.GA4861@ralph.linux2go.dk> <20080708092149.GF24934@redhat.com> <4873653B.3000103@codemonkey.ws> <1215524729.3805.21.camel@frecb07144> <487380DB.5080108@codemonkey.ws> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: "Daniel P. Berrange" , kvm@vger.kernel.org To: Anthony Liguori Return-path: Received: from ecfrec.frec.bull.fr ([129.183.4.8]:54959 "EHLO ecfrec.frec.bull.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753355AbYGHPDd (ORCPT ); Tue, 8 Jul 2008 11:03:33 -0400 In-Reply-To: <487380DB.5080108@codemonkey.ws> Sender: kvm-owner@vger.kernel.org List-ID: Le mardi 08 juillet 2008 =C3=A0 09:59 -0500, Anthony Liguori a =C3=A9cr= it : > Laurent Vivier wrote: > > So, "boot=3Don" means in fact "bootable=3Dtrue" > > =20 >=20 > I guess. I don't know that the later is more clear. I think the sou= rce=20 > of the confusion is the entire concept of "first bootable harddisk"=20 > which is what -boot c really means. >=20 > FWIW, the reason media=3Dcdrom,boot=3Don doesn't work, is that a CDRO= M's=20 > boot record is in el torito format instead of the traditional BIOS bo= ot=20 > sector. >=20 > media=3Dcdrom,boot=3Don would work if the image was a disk image inst= ead of=20 > an ISO. >=20 > In fact, I'm inclined to think that media=3Dcdrom,boot=3Don should no= t be=20 > explicitly prohibited because of this fact. To simplify, I think qemu should ignore "boot=3Don" when "if=3Dide". Laurent --=20 --------- Laurent.Vivier@bull.net ---------- "=EF=BB=BF=EF=BB=BFL'avenir ne se pr=C3=A9voit pas, il se pr=C3=A9pare.= " - Maurice Blondel