[Bug 1282655] [NEW] qcow2 images are not backwards compatiable with 12.04's qcow2

[Serge Hallyn]

Thanks for reporting this bug.

I took the upstream git tree.  Built it at today's git HEAD with

./configure --target-list=x86_64-softmmu --disable-fdt --disable-docs
--disable-guest-agent

and did

        ./qemu-img create -o compat=0.10 -f qcow2 /home/serge/test.img
1G

Then checked out v1.0 (updated the Makefile and Makefile.target to add -lrt)
and rebuilt.  Did

        sudo ./qemu-nbd  -c /dev/nbd0 /home/serge/test.img

But it worked fine.  Likewise when I used trusty's qemu-img to create
the tarball it worked fine.  So this appears to be something in our
precise patchset?  Still looking

 status: confirmed
 importance: high


** Changed in: qemu (Ubuntu)
   Importance: Undecided => High

** Changed in: qemu (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1282655

Title:
  qcow2 images are not backwards compatiable with 12.04's qcow2

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