Ubuntu on IBM z Systems

  1. Bug #1893775
  2. Comment #13

Comment 13 for bug 1893775

Revision history for this message
Christian Ehrhardt  (paelzer) wrote : Re: [Bug 1893775] Re: [UBUNTU 20.04.1] Failure to install Ubuntu 20.04.1 as KVM guest on DASD

On Mon, Sep 7, 2020 at 4:50 PM Dimitri John Ledkov
<email address hidden> wrote:
>
> I thought that one must use vfio-ccw to passthrough dasd drives, not
> virtio-scsi.

Yes - You can provide any block device (even image files) as
virtio-blk/virtio-scsi the same as on any other platform.
But indeed to "pass through" a dasd vfio-ccw would be the right and
only way that comes to mind (AFAIK).

/me shakes his fist at the underlying truth that the storage server
has normal modern disks and emulates ECKD on top of them to later
cause these issues when it no more behaves like the kind of disks it
originally is composed of :-/