Hi,
just quick search reveals quite a lot of things - eg.:

https://bugzilla.redhat.com/show_bug.cgi?id=760885

it says:
' 	
CD-ROM passthrough from to the host to a guest has been disabled in Red 
Hat Enterprise Linux 7.0 Beta for all front ends. QEMU reports "Driver 
'host_cdrom' is not whitelisted" in this scenario.'

it also says it was fixed .. so maybe was reintroduced?

cheers




On 01/24/2017 04:42 AM, ToddAndMargo wrote:
> On 12/21/2016 04:05 PM, ToddAndMargo wrote:
>> Hi All,
>>
>> SL 7.2
>>
>> I am drawing a blank on Google here.
>>
>> I am, trying to boot a qemu-kvm virtual machine off
>> of /dev/sr0 (my DVD).  But I get the following error
>>
>>      Error starting domain: internal error: qemu unexpectedly
>>      closed the monitor: 2016-12-22T00:00:30.330333Z qemu-kvm:
>>      -drive file=/dev/sr0,format=raw,if=none,media=cdrom,
>>      id=drive-sata0-0-0,readonly=on: could not open disk
>>      image /dev/sr0: Driver 'host_cdrom' is not whitelisted
>>
>> "Not whitelisted" ????
>>
>> What am I doing wrong?
>>
>> Many thanks,
>> -T
>>
>
> Anyone?
>