On Fri, Feb 19, 2021 at 11:55 AM Gianluca Cecchi <gianluca.cecchi@gmail.com> wrote:
Hello,
if I create a VM and select Q35 machine type, still the General --> create image option in edit phase doesn't show sata as an option.
Even if I create the VM without disks and then go to edit General --> create, I only see IDE, VirtIO-SCSI and VirtIO.
Instead if I click VM name, DIsks --> New, I can select VirtIO-SCSI, VirtIO and SATA
After the first disk (SATA in my case) has been created, now if I go and edit VM --> General --> Instance Images + --> Create, I see consistent options.

I think GUI experience could be improved.

Definitely, the lists should be the same and include [sata, virtio, virtio-scsi], we have a bug on that:
https://bugzilla.redhat.com/show_bug.cgi?id=1925079
 
Also because I can reproduce this workflow converging to an error (even if IDE disks are not so common nowadays...):
New VM
In  general I create an IDE disk
In System I select in Advanced parameters, Custom Chipset/Firmware Type Q35 (EFI or BIOS based)
go ahead

At the final OK I get the error:

Cannot add Virtual Disk: The disk interface is not supported by the VM OS: Other OS.

The result is VM created but without the IDE disk as not supported in Q35 type.

I have only virtio and virtio-scsi in the list of interfaces so it's not trivial for me to reproduce so can you please file a bug and attach the engine.log - I wonder how come that the whole add-vm operation didn't fail because of that.
 

Tested in 4.4.4
Gianluca
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