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

[Cole Robinson]

The linux /dev/sr0 issue should be fixed upstream:

http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=3baf720e6b920d583ce2834d05e5a4e9603a1d56

Maybe it's worth a backport to stable

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QEMU is not correctly detecting host CDs
https://bugs.launchpad.net/bugs/588691
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Status in QEMU: In Progress

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.