[Qemu-devel] [Bug 588691] Re: QEMU is not correctly detecting host CDs

[John Arbuckle]

I use real CD-ROM disc in Mac OS and Windows guests on my Mac OS 10.12
host. I have to run QEMU in root mode using the sudo command in order to
access the CD-ROM drive. So I know QEMU's support for using real optical
media on Mac OS hosts does work.

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https://bugs.launchpad.net/bugs/588691

Title:
  QEMU is not correctly detecting host CDs

Status in QEMU:
  Incomplete

Bug description:
  QEMU's block layer contains code for detecting and using ioctls when
  real CD-ROM host devices are attached.

  This detection is not working in some host OSes while bad implemented
  on anothers.

  E.g., in Linux host qemu -cdrom /dev/sr0 is not detecting it as a CD-ROM
  E.g., in Mac OS X host qemu asks the kernel to enumerate optical devices and 
the compares it to the constant string "/dev/cdrom". This is useless, that 
enumeration is just enough, and "/dev/cdrom" will NEVER exist in Mac OS X 
unless manually created by the user.

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