Installing a guest from a iso

Installing a guest from a iso

[Ed Smith]

It's been a while since I installed a guest and I'm having trouble booting from a cd iso.
My config to boot from a CD is from before the new QEMU was introduced.  Has the syntax
of this changed?  Here is what I have in my config to boot from a CD iso file I have
on my dom0 root.


#-----------------------------------------------------------------------------
# Disk image for
cdrom = '/boot/RHEL4U2-64b.boot.iso'

#-----------------------------------------------------------------------------
# boot on floppy (a), hard disk (c) or CD-ROM (d)
#boot=[a|c|d]
boot = 'd'

The guest console reports:

CDROM boot failure code : 0002
Boot from CD-Rom failed
FATAL: Could not read the boot disk

Re: Installing a guest from a iso

[Steven Hand]

> It's been a while since I installed a guest and I'm having trouble booting 
> from a cd iso.
> My config to boot from a CD is from before the new QEMU was introduced. 
> Has the syntax
> of this changed?  Here is what I have in my config to boot from a CD iso 
> file I have
> on my dom0 root.
>
>
> #-----------------------------------------------------------------------------
> # Disk image for
> cdrom = '/boot/RHEL4U2-64b.boot.iso'

Yeah, it changed back in August, see:

   http://lists.xensource.com/archives/html/xen-devel/2006-08/msg00369.html

or if you cannot view the archives: "Cdrom drives are now configured like 
disks by adding a :cdrom suffix to the target device 
(i.e.'file:/root/mytest.iso,hdc:cdrom,r').  Thereis no default cdrom drive 
any longer, to create an empty cdrom drive, use ',hdc:cdrom,r'.  Any of the 
4 ide devices can be cdrom drives now."

cheers,

S.

Re: Installing a guest from a iso

[jianli sun]

Steven Hand <steven.hand <at> cl.cam.ac.uk> writes:

> 
> > It's been a while since I installed a guest and I'm having trouble booting 
> > from a cd iso.
> > My config to boot from a CD is from before the new QEMU was introduced. 
> > Has the syntax
> > of this changed?  Here is what I have in my config to boot from a CD iso 
> > file I have
> > on my dom0 root.
> >
> >
> > #--------------------------------------------------------------------------
---
> > # Disk image for
> > cdrom = '/boot/RHEL4U2-64b.boot.iso'
> 
> Yeah, it changed back in August, see:
> 
>    http://lists.xensource.com/archives/html/xen-devel/2006-08/msg00369.html
> 
> or if you cannot view the archives: "Cdrom drives are now configured like 
> disks by adding a :cdrom suffix to the target device 
> (i.e.'file:/root/mytest.iso,hdc:cdrom,r').  Thereis no default cdrom drive 
> any longer, to create an empty cdrom drive, use ',hdc:cdrom,r'.  Any of the 
> 4 ide devices can be cdrom drives now."
> 
> cheers,
> 
> S.
>

I am trying to install RHEL4 as a guest OS using .hvm configuration. Since the 
istallation needs 4 CDs, how to specify muliple CD-ROM ISOs in the 
configuration? I tried to override the ISO file with next ISO file each time 
it pops up a "change CD" screen. It works only for the first time "change 
CDROM", then it shows error "unable to access CDROM" for the next "change 
CDROM". Any suggestion how to handle this? Thanks.

Jianli