libvirt users - Sep 2012 - boot device

Hi,

I am trying to create a guest machine on xen virtualized environment and
install rhel on it by booting from cdrom.
I face a issue in booting device. I gave boot order as hd,cdrom. When doing
maiden installation, it will find nothing in hard disk and boots from cd.
Once installation is completed and when it boots next time it boots from
hard disk.  It is the expected behaviour.
But it fails to boot from hard disk and again boots from cdrom.

I also tried specifying per boot device option. I specified disk image as
boot order 1 and cd image as boot order 2. But when i power on for the
first time, it tries to boot from harddisk and finds nothing there and says
" No bootable device. Going to power off in 30 seconds". But expected
is,
it should boot from cd after trying hard disk.

Below is my domain configuration xml file i used to create guest domain.

<domain type='xen'>
     <name>vm-2</name>
      <memory>1048576</memory>
      <vcpu>1</vcpu>
      <os>
            <type arch='x86_64'>hvm</type>
        <loader>/usr/lib/xen/boot/hvmloader</loader>
<!--        <boot dev='hd' />
            <boot dev='cdrom'/> -->
      </os>
    <features>
            <acpi/>
            <apic/>
            <pae/>
      </features>
    <on_poweroff>destroy</on_poweroff>
    <on_reboot>restart</on_reboot>
      <on_crash>restart</on_crash>
    <devices>
            <emulator>/usr/lib/xen/bin/qemu-dm</emulator>
            <disk type='file' device='disk'>
                  <source
file='/var/lib/libvirt/images/vm-2.img'/>
                  <target dev='xvda' bus='ide' />
            <boot order='1'/>
            <address type='drive' controller='0'
bus='0' target='0'
unit='0'/>
           </disk>
        <disk type='file' device='cdrom'>
                   <source
file='/var/lib/libvirt/images/Rhel53.iso'/>
                   <target dev='hdc' bus='ide' />
            <boot order='2'/>
                   <readonly/>
            <address type='drive' controller='0'
bus='1' target='0'
unit='0' />
        </disk>
        <interface type='bridge'>
                  <source bridge='br0'/>
            </interface>
        <graphics type='vnc' port='-1'
autoport='yes'/>
      </devices>
</domain>


I don't know where i am going wrong. So need help in resolving this issue.

Thanks,
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On Wed, Sep 05, 2012 at 19:22:27 +0530, vivek hari
wrote:
> Hi,
> 
> I am trying to create a guest machine on xen virtualized environment and
> install rhel on it by booting from cdrom.
> I face a issue in booting device. I gave boot order as hd,cdrom. When doing
> maiden installation, it will find nothing in hard disk and boots from cd.
> Once installation is completed and when it boots next time it boots from
> hard disk.  It is the expected behaviour.
> But it fails to boot from hard disk and again boots from cdrom.
Looks like the real issue is that it fails to boot from hard disk.
> I also tried specifying per boot device option. I specified disk image as
> boot order 1 and cd image as boot order 2. But when i power on for the
> first time, it tries to boot from harddisk and finds nothing there and says
> " No bootable device. Going to power off in 30 seconds". But
expected is,
> it should boot from cd after trying hard disk.
Xen driver does not support per-device boot configuration. Which means we have
a bug in libvirt because starting such domain should fail immediately because
of this.

Jirka