Hervé Poussineau <hpous...@reactos.org> writes:

> Hi,
>
> Le 09/01/2017 à 14:48, Paolo Bonzini a écrit :
>>
>>
>> On 09/01/2017 13:49, Markus Armbruster wrote:
>>> Hervé Poussineau <hpous...@reactos.org> writes:
>>>
>>>> 'ide-hd', 'ide-cd' and 'scsi-cd' devices already disable default cdrom.
>>>> Make it the same for 'scsi-hd'.
>>>>
>>>> That way, we can add/replace the device on lun=2 without using -nodefaults.
>>>
>>> Yes, but it might upset existing usage that relies on the default
>>> CD-ROM.  In my opinion, making your needs explicit is better than
>>> relying on defaults, but that doesn't mean we can change the defaults
>>> unthinkingly.  Definitely not qemu-trivial.
>>>
>>> Opinions on the change?
>>
>> The original rationale for the change was "ide-hd has to suppress the
>> default CD-ROM, or else you can't put one on secondary master without
>> -nodefaults" but the same applies for scsi-hd vs. lun=1.
>>
>> So I'm not sure, but I lean towards accepting the patch.
>>
>> Paolo
>
> Paolo, Markus, so what is the conclusion?
> Accepting the patch, or refusing it?

Suggest to repost with the commit message updated to mention the
backwards incompatibility, and why you think it's okay.
cc: John Snow <js...@redhat.com>, cc: qemu-bl...@nongnu.org

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