[Bug 1811711] Re: qemu-img can not convert virtualbox virtual disk formats qcow

[Thomas Huth]

The QEMU project is currently considering to move its bug tracking to another 
system. For this we need to know which bugs are still valid and which could be 
closed already. Thus we are setting older bugs to "Incomplete" now.
If you still think this bug report here is valid, then please switch the state 
back to "New" within the next 60 days, otherwise this report will be marked as 
"Expired". Or mark it as "Fix Released" if the problem has been solved with a 
newer version of QEMU already. Thank you and sorry for the inconvenience.

** Changed in: qemu
       Status: New => Incomplete

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1811711

Title:
  qemu-img can not convert virtualbox virtual disk formats qcow

Status in QEMU:
  Incomplete

Bug description:
  Hello, I'm working with QEMU on macOS, and am experiencing issues
  working with the `qemu-img` command.

  Info
  ----
  $ sw_vers
  ProductName:    Mac OS X
  ProductVersion: 10.13.6
  BuildVersion:   17G4015

  VirtualBox
  ----------
  $ VBoxManage --version
  6.0.0r127566

  $ qemu-system-x86_64 --version
  QEMU emulator version 3.1.50 (v3.1.0-rc2-745-g147923b1a9-dirty)
  Copyright (c) 2003-2018 Fabrice Bellard and the QEMU Project developers

  $ qemu-img --version
  qemu-img version 3.1.50 (v3.1.0-rc2-745-g147923b1a9-dirty)
  Copyright (c) 2003-2018 Fabrice Bellard and the QEMU Project developers

  Steps to reproduce
  ------------------

  > Prereq VirtualBox needs to be installed to run the `VBoxManage`
  command

  $ VBoxManage createmedium disk --filename vbox-vdisk-exp.qcow --format qcow 
--size 5
  0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
  Medium created. UUID: e2b36955-3791-4c0e-93d4-913669b1d9fb

  $ file vbox-vdisk-exp.qcow
  vbox-vdisk-exp.qcow: QEMU QCOW Image (v1), 5242880 bytes

  $ qemu-img info vbox-vdisk-exp.qcow
  image: vbox-vdisk-exp.qcow
  file format: qcow
  virtual size: 5.0M (5242880 bytes)
  disk size: 8.0K
  cluster_size: 4096

  # Convert vbox virtualdisk to qcow2 format using `qemu-img`
  $ qemu-img convert -f qcow vbox-vdisk-exp.qcow -O qcow2 
vbox-vdisk-exp-convert.qcow2

  $ file vbox-vdisk-exp-convert.qcow2
  vbox-vdisk-exp-convert.qcow2: QEMU QCOW Image (v3), 5242880 bytes

  # Print info about qemu-img converted image from vbox created qcow image
  $ qemu-img info vbox-vdisk-exp-convert.qcow2                                  
                 mutts-6 | 0 < 10:53:00
  image: vbox-vdisk-exp-convert.qcow2
  file format: qcow2
  virtual size: 5.0M (5242880 bytes)
  disk size: 196K
  cluster_size: 65536
  Format specific information:
      compat: 1.1
      lazy refcounts: false
      refcount bits: 16
      corrupt: false

  # Print info about vbox created qcow image
  qemu-img info vbox-vdisk-exp.qcow                                             
               mutts-6 | 0 < 10:53:19
  image: vbox-vdisk-exp.qcow
  file format: qcow
  virtual size: 5.0M (5242880 bytes)
  disk size: 8.0K
  cluster_size: 4096

  I've attached a zip file containing the vbox created qcow image along
  with the image that `qemu-img` converted.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1811711/+subscriptions