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I have some open-source Xen images (.img), that I want to convert to VirtualBox.

Both the methods I tried (convertfromraw or to .xva via xva.py then to ova via XenConvert) produce FATAL: Fatal: No bootable medium found!.

Any idea what the most reliable method is for performing this conversion?

Thanks in advance.

SyRenity
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  • Is this a Windows or Linux instance you are trying to migrate? Have you tried following instructions from here https://www.virtualbox.org/wiki/Migrate_Windows ? As far as I am concerned Xen .img files are simple block device files meaning you can treat them as physical hard drives. – Andrey Nov 06 '11 at 20:03
  • Also, if it's Windows, you will have to run their MBR repair tool. Just boot your VM into Windows Installation CD and see if detects installation. Follow the steps to repair MBR. – Andrey Nov 06 '11 at 20:06
  • CentOS 64-bit, so they should work out of box (but they don't). – SyRenity Nov 06 '11 at 20:20
  • Are your CentOS VMs fully or para virtualised? – Andrey Nov 06 '11 at 20:59
  • Para-virtual VM's. – SyRenity Nov 06 '11 at 21:25
  • Which means your VMs don't have their own kernel and initrd images (these are provided by Xen Dom0) so even if you were to install grub on the instance's disk (.img file) your machine would not boot. VirtualBox only runs fully virtualised VMs. – Andrey Nov 07 '11 at 09:04
  • I would suggest you try converting your images to use pygrub http://wiki.xen.org/xenwiki/PyGrub . During this process you will install grub on your instance and at that point VM should be able to boot from VirtualBox. Oh and dont forget to provide an initrd and the kernel images to your VMs. Hope this helps. – Andrey Nov 07 '11 at 09:09

2 Answers2

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Use the VirtualBox command line utility - vboxmanage.

vboxmanage clonehd XEN_disk.img VIRTUALBOX_disk.vdi

or

vboxmanage internalcommands converthd XEN_disk.img VIRTUALBOX_disk.vdi

or

Cheat. Use clonezilla or any cloning method.

Boot to clonezilla on the xen virtual client and virtualbox client using a clonezilla iso. Clone from xen to virtualbox.

joe
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The best way is to use the native converter provided by zen this can be downloaded from below URL 

http://downloadns.citrix.com.edgesuite.net/4810/XenConvert_Install.exe?_ga=2.114409543.1143128890.1531322576-1077525422.1529510520
http://downloadns.citrix.com.edgesuite.net/4812/XenConvert_Install_x64.exe?_ga=2.114409543.1143128890.1531322576-1077525422.1529510520
Mansur Ul Hasan
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