[virt-tools-list] how to convert virtualbox vm instance to kvm instance, and then run kvm instance under virt-manager?

[Qiubo Su (David Su)]

dear virt-manger community,

moreover, the virtual disk size is dynamically expanded.

just FYI

thanks,
david su

On Sat, Nov 17, 2012 at 11:07 PM, Qiubo Su (David Su) <qiubosu at gmail.com>wrote:

> dear virt-manager community,
>
> the 40GB is the virtual size of the image.vdi image, while the 1.3GB is
> the acutal size of the image.vdi image.
>
> just FYI.
>
> thanks,
> david su
>
>
> On Sat, Nov 17, 2012 at 10:40 PM, Qiubo Su (David Su) <qiubosu at gmail.com>wrote:
>
>> dear virt-manager team,
>>
>> i run "VBoxManage clonehd --format RAW image.vdi image.img" to convert
>> the virtualbox .vdi vm instance to raw format, and with virt-manager to
>> create new vm with the raw format, it works fine, i.e. can start the new vm
>> instance successfully and the networking access is the same as before.
>>
>> but after run "qemu-img convert -f raw image.img -O qcow2 image.qcow" to
>> convert the raw format to qcow2 format, and with virt-manager to create new
>> vm with the qcow2 format, it doesn't work, i.e. get "no bootable device"
>> error when start the new vm with qcow2 format, no need to say the
>> networking access.
>>
>> the size of the ram format disk is about 40GB, while the size of the
>> qcow2 format disk is about 1.3GB (similar as that of the original image.vdi
>> size), nearly 30 times smaller than the raw format.
>>
>> if not convert the raw format to qcow2 format, then the disk size is too
>> large, waste of disk space.
>>
>> there are ubuntu 12.04, opennebula 3.6.0, and kvm, qemu, libvirt etc
>> installed.
>>
>> it is much appreciated if you can help with this.
>>
>> thanks,
>> david su
>>
>>
>> On Thu, Nov 15, 2012 at 10:48 PM, Qiubo Su (David Su) <qiubosu at gmail.com>wrote:
>>
>>> dear virt-manager team,
>>>
>>> i have some applications (e.g. web hosting system and VOIP telephony
>>> system) installed in the virtualbox vm instances (with bridged adapter for
>>> networking), but since i set up the opennebula cloud system with kvm
>>> hypervisor, i have been trying to migrate these virtualbox vm instances to
>>> under kvm hypervisor. i run "qemu-img convert virtualboximage.vdi -O
>>> qcow2 kvmimage.qcow" to get vm instance under kvm hypervisor. but when i
>>> tried to use virt-manager (corresponding to virtualbox) to import the
>>> kvmimage.qcow (as the virtualboximage.vdi in the virtualbox) and configure
>>> everything for the kvmimage.qcow vm instance, and then run this vm instance
>>> under virt-manager, it is unbootable. the attached file is the screenshot
>>> when this vm instance is booting.
>>>
>>> it is much appreciated if anyone can let me know the correct procedure
>>> to convert the virtualbox vm instance to kvm vm instance, to import the
>>> disk image to virt-manager, to configure this vm instance in the
>>> virt-manager, to make it starts successfully and networking access
>>> correctly as well.
>>>
>>> thanks,
>>> david su
>>>
>>
>>
>
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