[Qemu-devel] boot from "live cd" in qemu ?

[Qemu-devel] boot from "live cd" in qemu ?

[jmf]

How can I boot from a BSD or Linux "live cd" in qemu ? 

qemu allows the user to set it's emulated "devices" to arbitrary files or real devices so I tried to set the cdrom, or an iso image, to fda or hda but this did not work:



$ qemu -hda /dev/cdrom

$ qemu -hda livecd.iso



$ qemu -fda /dev/cdrom

$ qemu -fda livecd.iso



all fail to boot. What I would like to do would be something like



$ qemu -boot_from_cdrom ./mylivecd.iso



or



$ qemu -boot_from_cdrom /dev/cdrom



If this is possible, how? If it is not possible, will this feature be added in the future? "live cds" are so popular now, this would be very helpful.









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Re: [Qemu-devel] boot from "live cd" in qemu ?

[Philipp Gühring]

Hi,

Try

qemu -cdrom /dev/cdrom

qemu -cdrom livecd.iso

qemu -cdrom /dev/cdrom -boot d

qemu -cdrom livecd.iso -boot d


Many greetings,
Philipp Gühring

Re: [Qemu-devel] boot from "live cd" in qemu ?

[Lennert Buytenhek]

On Sun, Sep 26, 2004 at 02:13:45PM -0400, jmf wrote:

> qemu allows the user to set it's emulated "devices" to arbitrary files or real devices so I tried to set the cdrom, or an iso image, to fda or hda but this did not work:
> 
> 
> 
> $ qemu -hda /dev/cdrom
> 
> $ qemu -hda livecd.iso

Try:

$ touch temp_hda_image
$ qemu -hda temp_hda_image -cdrom /dev/cdrom -boot d


--L

Re: [Qemu-devel] boot from "live cd" in qemu ?

[Jim C. Brown]

On Sun, Sep 26, 2004 at 08:18:33PM +0200, Lennert Buytenhek wrote:
> On Sun, Sep 26, 2004 at 02:13:45PM -0400, jmf wrote:
> 
> > qemu allows the user to set it's emulated "devices" to arbitrary files or real devices so I tried to set the cdrom, or an iso image, to fda or hda but this did not work:
> > 
> > 
> > 
> > $ qemu -hda /dev/cdrom
> > 
> > $ qemu -hda livecd.iso
> 
> Try:
> 
> $ touch temp_hda_image
> $ qemu -hda temp_hda_image -cdrom /dev/cdrom -boot d
> 

You don't need the "-hda temp_hda_image" part.

$ qemu -cdrom /dev/cdrom -boot d

would suffice.

> 
> --L
> 
> 
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://lists.nongnu.org/mailman/listinfo/qemu-devel
> 

-- 
Infinite complexity begets infinite beauty.
Infinite precision begets infinite perfection.

Re: [Qemu-devel] boot from "live cd" in qemu ?

[Lennert Buytenhek]

On Sun, Sep 26, 2004 at 02:30:48PM -0400, Jim C. Brown wrote:

> > Try:
> > 
> > $ touch temp_hda_image
> > $ qemu -hda temp_hda_image -cdrom /dev/cdrom -boot d
> 
> You don't need the "-hda temp_hda_image" part.

Aha.  It became a habit of mine to always add this because qemu won't
let me boot a kernel without specifying a hda, and quite often all I
want to do is just to boot a kernel to see if it works at all.


--L