[Qemu-devel] [Bug 877498] [NEW] qemu does not pass sector size from physical devices to virtual devices

[Philipp Schmidt]

Public bug reported:

When passing a physical disk (i.e. a multipathed fcal volume in my case)
with a 4k sector size as raw image to qemu (-drive file=/dev/mapper
/hartebeest-sys,if=none,id=drive-virtio-disk0,boot=on,format=raw), the
resulting virtual device has a sector size of 512b, rendering the
partition table unusable.

Versions used: QEMU 0.12.5 (qemu-kvm-0.12.5) from debian unstable

** Affects: qemu
     Importance: Undecided
         Status: New

** Description changed:

  When passing a physical disk (i.e. a multipathed fcal volume in my case)
  with a 4k sector size as raw image to qemu (-drive file=/dev/mapper
  /hartebeest-sys,if=none,id=drive-virtio-disk0,boot=on,format=raw), the
  resulting virtual device has a sector size of 512b, rendering the
- partition table unusable!
+ partition table unusable.
+ 
+ Versions used: QEMU 0.12.5 (qemu-kvm-0.12.5) from debian unstable

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https://bugs.launchpad.net/bugs/877498

Title:
  qemu does not pass sector size from physical devices to virtual
  devices

Status in QEMU:
  New

Bug description:
  When passing a physical disk (i.e. a multipathed fcal volume in my
  case) with a 4k sector size as raw image to qemu (-drive
  file=/dev/mapper/hartebeest-sys,if=none,id=drive-virtio-
  disk0,boot=on,format=raw), the resulting virtual device has a sector
  size of 512b, rendering the partition table unusable.

  Versions used: QEMU 0.12.5 (qemu-kvm-0.12.5) from debian unstable

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