I did use qemu-system-x86_64 on the SL65 image.  I will first try
qemu-kvm, and then (as a lst resort) virt-manager and libvirtd - I had
to do quite a bit work to get libvirt going when I was using
Debian/Knoppix, and the relative simplicity of qemu-system-x86_64
(just 'qemu-system-x86_64 -cdrom CDROM.iso') was quite nice.  In any
event the advantage of libvirt may be worth the work.  Thanks very
much David for the help.
Boryeu

On 3/5/14, David Sommerseth <[log in to unmask]> wrote:
> On 05/03/14 16:32, Boryeu Mao wrote:
>> I have recently migrated from Debian-based Knoppix to SL
>> (livecd-iso-to-disk from SL-65-x86_64-2014-02-06-LiveDVD.iso), and
>> installed the emulator from the package
>> qemu-system-x86-1.0-27.2.x86_64.rpm).  The emulator booted a Knoppix
>> image without incidents (albeit somewhat slowly,
>> KNOPPIX_V7.2.0DVD-2013-06-16-EN.iso).  However, booting the SL 65
>> LiveDVD didn't go so well - it hangs in the startup screen with the
>> inner arc stopping at about 3 o'clock position.  I wonder if there may
>> be another package for qemu that I should use, or if there is another
>> virtual machine that may be more robust for SL.  Thanks in advance for
>> help or suggestions.
>>
>> SL-65-x86_64-2014-02-06-LiveDVD.iso (via livecd-iso-to-disk)
>> HP laptop Pavilion g6 with dual AMD A6-4400M APU
>
> AFAICT, AMD A6-4400M supports hardware virtualization (aka KVM in the
> Linux world).  I'd recommend you to try using qemu-kvm instead of
> qemy-system-x86.  That should improve the performance noticeably.
>
> In addition, the SL image you've downloaded is 64 bits.  I don't know if
> you try to run that via qemu-system-i386 or qemu-system-x86_64.  The
> former is 32bit /emulation/, the latter 64bit.
>
> But only qemu-kvm uses virtualization.
>
> Try also to kick off your images using virt-manager.  It's usually
> fairly simple to configure new VMs that way, and just point it to your
> images.  This way, virt-manager/libvirtd will take care of setting up
> the proper arguments to qemu-kvm, for better performance.  Also try to
> use the virtio drivers wherever possible, as they don't require the
> complete hardware emulation layer.
>
>
> --
> kind regards,
>
> David Sommerseth
>
>