[Qemu-devel] [Bug 611640] [NEW] snapshot mode is broken for raw images

[Victor Shkamerda]

Public bug reported:

The snapshot mode is not working if you use raw format for image instead
of qcow2. Create a raw disk image by running "dd of=xxx.img bs=1 count=0
seek=8G". Then run "qemu -snapshot xxx.img". In monitor console run
"info block". There should be qcow2 temporary image backed by the raw
image. Now run "commit ide0-hd0" and after that again "info block". You
should see now that there is no more image, so any operations on it will
fail form now on. This is for latest HEAD in git.

** Affects: qemu
     Importance: Undecided
         Status: New

-- 
snapshot mode is broken for raw images
https://bugs.launchpad.net/bugs/611640
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Status in QEMU: New

Bug description:
The snapshot mode is not working if you use raw format for image instead of 
qcow2. Create a raw disk image by running "dd of=xxx.img bs=1 count=0 seek=8G". 
Then run "qemu -snapshot xxx.img". In monitor console run "info block". There 
should be qcow2 temporary image backed by the raw image. Now run "commit 
ide0-hd0" and after that again "info block". You should see now that there is 
no more image, so any operations on it will fail form now on. This is for 
latest HEAD in git.