Re: KVM-74: HELP PLEASE - cannot boot from cdrom for recovery

[Gerry Reno <greno@verizon.net>]

Gerry Reno wrote:
> Gerry Reno wrote:
>> Javier Guerra wrote:
>>> On Tue, Mar 31, 2009 at 12:01 PM, Gerry Reno <greno@verizon.net> wrote:
>>>  
>>>> Charles Duffy wrote:
>>>> I put the xml stanza in the file and undefine/define domain but it 
>>>> gives an
>>>> error about cannot read image file.
>>>> <source file=/media/Fedora 10 DVD"/>
>>>> And I check this path and I can read all the files from the command 
>>>> line on
>>>> the DVD just fine.
>>>> What could be the problem?
>>>>     
>>>
>>> don't put a mount dir, either use a ISO image, or the cdrom device file
>>>
>>>
>>>   
>> Ok, a little closer now.  I put this in xml file and redefine domain 
>> and it now defines:
>>
>> <source file=/dev/sr0"/>
>> This was device that mount showed as mounting the DVD.
>>
>> But when the domain boots and I select 3. CDROM from screen, it still 
>> shows the original boot error:
>> Boot Failure Code:  0003
>> Boot from CDROM failed:  cannot read the boot disk.
>> FATAL: No bootable device.
>> What should I change?
>>
> Here is what command looks like now using 'ps':
> /usr/bin/qemu-kvm -S -M pc -m 512 -smp 2 -name MX_3 -monitor pty -boot 
> c -drive 
> file=/var/vm/vm1/qemu/images/MX_3/MX_3.img,if=ide,index=0,boot=on 
> -drive file=/dev/sr0,if=ide,media=cdrom,index=3 -net 
> nic,macaddr=00:0c:29:e3:bc:ee,vlan=0 -net 
> tap,fd=17,script=,vlan=0,ifname=vnet1 -serial none -parallel none -usb 
> -vnc 127.0.0.1:1 -k en-us
>
And I try other disk type:
<disk type='block' device='cdrom'>
But that produces the same error.

What else can I add in order to boot from cdrom?


Regards,
Gerry