[Qemu-devel] [Bug 1390520] Re: virtual machine fails to start with connected audio cd

[John Snow]

There is currently no expectation that Audio CDs will work on an
emulated CD drive; as long as audio CDs aren't causing QEMU to crash or
anything of the sort, this is wishlist and not a bug.

Still, I'll try to take a look later and see if there's an easy win here
or not. I imagine we don't support many of the Audio CD commands that
ATAPI drives need in order to service audio requests, but there may be
some difficulty in the pass-through as well.

** Changed in: qemu
     Assignee: (unassigned) => John Snow (jnsnow)

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https://bugs.launchpad.net/bugs/1390520

Title:
  virtual machine fails to start with connected audio cd

Status in QEMU:
  New
Status in libvirt package in Ubuntu:
  Confirmed
Status in libvirt source package in Trusty:
  Confirmed

Bug description:
  when connecting a data cd with a virtual machine (IDE CDROM 1), the virtual 
machine starts up and the data cd is accessable (for example to install 
software package or drivers),
  but connecting an audio cd the following error appears:

  
-------------------------------------------------------------------------------------------------------------------------------
  cannot read header '/dev/sr0': Input/output error

  Traceback (most recent call last):
    File "/usr/share/virt-manager/virtManager/details.py", line 2530, in 
_change_config_helper
      func(*args)
    File "/usr/share/virt-manager/virtManager/domain.py", line 850, in 
hotplug_storage_media
      self.attach_device(devobj)
    File "/usr/share/virt-manager/virtManager/domain.py", line 798, in 
attach_device
      self._backend.attachDevice(devxml)
    File "/usr/lib/python2.7/dist-packages/libvirt.py", line 493, in 
attachDevice
      if ret == -1: raise libvirtError ('virDomainAttachDevice() failed', 
dom=self)
  libvirtError: cannot read header '/dev/sr0': Input/output error
  
----------------------------------------------------------------------------------------------------------------------------

  Description:    Ubuntu 14.04.1 LTS
  Release:        14.04

  qemu:
    Installiert:           2.0.0+dfsg-2ubuntu1.6
    Installationskandidat: 2.0.0+dfsg-2ubuntu1.6

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