On Wed, 2019-03-06 at 14:37 -0500, Cole Robinson wrote:
> On 3/4/19 11:11 AM, Andrea Bolognani wrote:
> > We already use virtio-blk for regular disks whenever possible,
> > and there's no good reason not to do the same with virtio-scsi
> > when dealing with CDROMs instead of artificially limiting its
> > use to s390x and ppc64/pseries guests.
> > 
> > Signed-off-by: Andrea Bolognani <[email protected]>
> > ---
> >  .../compare/virt-install-kvm-session-defaults.xml           | 6 ++++--
> >  tests/cli-test-xml/compare/virt-install-location-iso.xml    | 6 ++++--
> >  virtinst/devices/disk.py                                    | 4 +---
> >  3 files changed, 9 insertions(+), 7 deletions(-)
> 
> This one makes me a bit uncomfortable because we are changing a long
> held x86 default... but whatever, I'm willing to give it a spin and see
> if it causes problems.

I'm afraid you might have been right about this one :(

I've just tried installing a bunch of guests from virtio-scsi CDROM
and while Fedora, CentOS and Ubuntu all manage just fine, Debian
can't locate its own installation source and leaves you hanging.

Interestingly, Debian has no problem installing to a disk connected
to that same virtio-scsi controller...

I'll perform some more installation tests with various distributions
on non-x86 architectures to see whether it's broken there as well,
but in the meantime this commit should be reverted. Sorry :(

-- 
Andrea Bolognani / Red Hat / Virtualization

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