[Libguestfs] Virt-v2v virtio device limit?

Richard W.M. Jones rjones at redhat.com
Wed May 8 08:29:40 UTC 2013

On Wed, May 08, 2013 at 12:11:24AM +0000, Davis, Richard wrote:
> Am I right in thinking this is because the virt-v2v process
> (libguestfs/qemu-kvm) see's the devices as IDE's as opposed to
> virtio and is therefore subject to the restricted 4x IDE device
> limit of old?  Or at least , that's how I'm interpreting the DEBUG
> output.

Yes.  Because some ancient guest [RHEL 3?]'s mkinitrd would only work
under IDE emulation, unfortunately virt-v2v always uses IDE emulation,
so is restricted to 4 disks.  1 or 2 are used for other purposes
depending on how you configure virt-v2v.

This will all be fixed in the rewrite.


Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-df lists disk usage of guests without needing to install any
software inside the virtual machine.  Supports Linux and Windows.

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