[Qemu-devel] [Bug 932490] Re: Qemu fails on -fda /dev/fd0 when no medium is present

[John Snow]

Likely the bug as reported still exists, because this attempts to use
the disk image, not the floppy drive as a whole. If there's no floppy
inserted, there's no disk image to use. Later versions of QEMU even
explicitly remove support for pass-through floppy disks.

Basically, what you want to do is to create a normal emulated floppy
drive in QEMU, and then use the block device add commands to use the
/dev/fd0 as a media which can then be virtually inserted into the
virtual floppy device.

QEMU does not have support for doing pass-through of the floppy
controller / drive itself presently. (Uh, unless you have a PCI floppy
controller or something, but... you probably don't!)

We can close this bug as WONTFIX, essentially.

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https://bugs.launchpad.net/bugs/932490

Title:
  Qemu fails on -fda /dev/fd0 when no medium is present

Status in QEMU:
  Incomplete

Bug description:
  # qemu-system-x86_64 --version
  QEMU emulator version 1.0 (qemu-kvm-1.0), Copyright (c) 2003-2008 Fabrice 
Bellard

  # qemu-system-x86_64 -fda /dev/fd0
  qemu-system-x86_64: -fda /dev/fd0: could not open disk image /dev/fd0: No 
such device or address

  Starting with a medium (floppy disk) inserted, then removing or
  changing the medium works fine.

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