[Qemu-devel] [Bug 1470481] Re: qemu-img converts large vhd files into only approx. 127GB raw file causing the VM to crash

[Thomas Huth]

Which version of QEMU (or rather qemu-img) have you been using here? Can
you still reproduce it with the latest version (currently v2.12)?

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

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https://bugs.launchpad.net/bugs/1470481

Title:
  qemu-img converts large vhd files into only approx. 127GB raw file
  causing the VM to crash

Status in QEMU:
  Incomplete

Bug description:
  I have a VHD file for Windows 2014 server OS. I use the following
  command to convert VHD file (20GB) to a RAW file for KVM.

  qemu-img convert -f vpc -O raw WIN-SNRGCQV6O3O.VHD disk.img

  The output file is about 127GB. When install the VM and boot it up,
  the OS crashes with STOP error after the intial screen. I found on the
  internet that the file limit of 127GB is an existing bug. Kindly fix
  the problem. The workaround to use a Hyper-V to convert to fixed disk
  is not a feasible solution.

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