From: Laurent Vivier <Laurent.Vivier@bull.net>
To: Soren Hansen <soren@ubuntu.com>
Cc: kvm@vger.kernel.org
Subject: Re: Failure to boot CDROM with -drive arg
Date: Tue, 08 Jul 2008 11:28:26 +0200 [thread overview]
Message-ID: <1215509306.3805.14.camel@frecb07144> (raw)
In-Reply-To: <20080708091724.GA4861@ralph.linux2go.dk>
Le mardi 08 juillet 2008 à 11:17 +0200, Soren Hansen a écrit :
> On Tue, Jul 08, 2008 at 09:37:30AM +0100, Daniel P. Berrange wrote:
> > The following two command lines should be identical from the user's
> > point of view:
> >
> > # qemu-kvm -cdrom /home/berrange/boot.iso -boot d -m 500
> >
> > # qemu-kvm -drive file=/home/berrange/boot.iso,if=ide,media=cdrom,index=2,boot=on -m 500
>
> http://sourceforge.net/tracker/index.php?func=detail&aid=1977971&group_id=180599&atid=893831
yes, in fact "media=cdrom,boot=on" is not equal to "-cdrom ... -boot d".
"boot=on" means "use bios extension extboot with this drive", and using
extboot allows the bios to manage this device and to boot from it.
Laurent
--
--------- Laurent.Vivier@bull.net ----------
"L'avenir ne se prévoit pas, il se prépare."
- Maurice Blondel
prev parent reply other threads:[~2008-07-08 9:28 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-08 8:37 Failure to boot CDROM with -drive arg Daniel P. Berrange
2008-07-08 8:48 ` Laurent Vivier
2008-07-08 8:51 ` Daniel P. Berrange
2008-07-08 8:54 ` Laurent Vivier
2008-07-08 9:17 ` Soren Hansen
2008-07-08 9:21 ` Daniel P. Berrange
2008-07-08 9:29 ` Laurent Vivier
2008-07-08 13:01 ` Anthony Liguori
2008-07-08 13:45 ` Laurent Vivier
2008-07-08 14:59 ` Anthony Liguori
2008-07-08 15:03 ` Laurent Vivier
2008-07-08 15:14 ` Anthony Liguori
2008-07-08 9:28 ` Laurent Vivier [this message]
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