[libvirt] libvirt external snapshot error

Vasiliy Tolstov v.tolstov at selfip.ru
Mon Nov 23 12:13:06 UTC 2015

2015-11-23 15:10 GMT+03:00 Peter Krempa <pkrempa at redhat.com>:
> The file should not exist prior to the snapshot. If you want to
> pre-create it (with correct size and format), you need to specify
> --reuse-external in that case. Virsh manual already documents that:
>    If --reuse-external is specified, and the snapshot XML requests an
>    external snapshot with a destination of an existing file, then the
>    destination must exist and be pre-created with correct format and
>    metadata. The file is then reused; otherwise, a snapshot is refused
>    to avoid losing contents of the existing files.

If file is not exists i get error:
error: internal error: unable to execute QEMU command 'transaction':
Could not open '/test.raw': Invalid argument

Vasiliy Tolstov,
e-mail: v.tolstov at selfip.ru

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