Re: [Qemu-devel] [Qemu-ppc] real cdrom access failure

[Andreas Färber]

Am 10.06.2013 15:41, schrieb Alexander Graf:
> On 06/10/2013 03:39 PM, Programmingkid wrote:
>> On Jun 9, 2013, at 12:34 PM, Alexander Graf wrote:
>>
>>> On 09.06.2013, at 18:28, Programmingkid wrote:
>>>
>>>> I am trying to access the cdrom drive in QEMU 1.5.0, but can't. This
>>>> is the error I see: qemu-system-ppc: -cdrom /dev/cdrom: could not
>>>> open disk image /dev/cdrom: No such file or directory. I think this
>>>> is a bug with version 1.5.0 on Mac OS X. Anybody else notice this
>>>> problem?
>>> Mac OS X doesn't provide a /dev/cdrom link. You have to point it
>>> directly to the target device. To get a list of available devices, try
>>>
>>>    $ diskutil list
>>>
>>> Also make sure that all partitions and file systems on top of the
>>> CD-ROM are unmounted (diskutil unmount or just umount), as OSX won't
>>> allow direct access to /dev/disk1 otherwise.
>>>
>>>
>>> Alex
>>>
>>
>> The -cdrom /dev/cdrom option always worked in the past. Just not with
>> version 1.5.0.
> 
> Hrm. CC'ing Andreas and Peter. They're the best matches to people
> knowing their way around OSX host support :).

The translation of /dev/cdrom happens in block/raw-posix.c:hdev_open().

For v1.5.0 a filename parameter was dropped from the block API, so
currently the Mac OS X code is changing the local variable so the
modified filename variable never makes it into the QDict *options. :/

Andreas

> Also Changing qemu-ppc@ to
> qemu-devel@, as this is 100% unrelated to the ppc target.
> 
> 
> Alex

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