I can't reproduce this. qemu-img convert works just fine here.
qemu-img convert -f qcow2 -O qcow2 -c -o compat=0.10 x.img y.img
(from a random winXP guest image).
** Changed in: qemu
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1452062
Title:
qemu-img will fail to convert images in 2.3.0
Status in QEMU:
Incomplete
Bug description:
Hello guys,
There seems to be a bug in qemu-img with 2.3.0 that wasn't there
in 2.2.1 .... qemu convert will always fail converting. See the
output below:
Started by upstream project "Create windows image" build number 73
originally caused by:
Started by user anonymous
Building remotely on builder (builder lab) in workspace
/var/lib/jenkins/remote/workspace/Prepare windows Image
[Prepare WS2008R2 Image] $ /bin/sh -xe /tmp/hudson4138890034689910617.sh
+ sudo bash -x /var/images/prepare_windows.sh WS2008R2
+ set +x
Preparing: windows
Virtio CD: virtio-win-0.1.96.iso
Sparsifying...
qemu-img: error while compressing sector 11131648: Input/output error
virt-sparsify: error: external command failed: qemu-img convert -f
qcow2 -O 'qcow2' -c -o 'compat=0.10' '/tmp/sparsifyb459a0.qcow2'
'/var/images/generated/WS2008R2.qcow2'
virt-sparsify: If reporting bugs, run virt-sparsify with debugging
enabled (-v) and include the complete output.
Build step 'Execute shell' marked build as failure
Warning: you have no plugins providing access control for builds, so falling
back to legacy behavior of permitting any downstream builds to be triggered
Finished: FAILURE
Thanks,
Dave
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