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| author | edison <edison@cloud.com> | 2010-09-21 19:58:41 -0700 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2010-10-22 14:49:35 +0200 |
| commit | 50f7536e83f8ab0579e770dafe378a1baefa6f67 (patch) | |
| tree | a06b3ce03bae7ed77a1e1e9bebc6ead157c7a4e5 /qemu-img.texi | |
| parent | dc1ce66920820c6681ffda617218e34db133edc5 (diff) | |
| download | qemu-50f7536e83f8ab0579e770dafe378a1baefa6f67.tar.gz qemu-50f7536e83f8ab0579e770dafe378a1baefa6f67.tar.bz2 qemu-50f7536e83f8ab0579e770dafe378a1baefa6f67.zip | |
Copy snapshots out of QCOW2 disk
In order to backup snapshots, created from QCOW2 iamge, we want to copy snapshots out of QCOW2 disk to a seperate storage.
The following patch adds a new option in "qemu-img": qemu-img convert -f qcow2 -O qcow2 -s snapshot_name src_img bck_img.
Right now, it only supports to copy the full snapshot, delta snapshot is on the way.
Changes from V1: all the comments from Kevin are addressed:
Add read-only checking
Fix coding style
Change the name from bdrv_snapshot_load to bdrv_snapshot_load_tmp
Signed-off-by: Disheng Su <edison@cloud.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'qemu-img.texi')
| -rw-r--r-- | qemu-img.texi | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/qemu-img.texi b/qemu-img.texi index c1b1f2717e..1b90ddbcfc 100644 --- a/qemu-img.texi +++ b/qemu-img.texi @@ -77,9 +77,9 @@ it doesn't need to be specified separately in this case. Commit the changes recorded in @var{filename} in its base image. -@item convert [-c] [-f @var{fmt}] [-O @var{output_fmt}] [-o @var{options}] @var{filename} [@var{filename2} [...]] @var{output_filename} +@item convert [-c] [-f @var{fmt}] [-O @var{output_fmt}] [-o @var{options}] [-s @var{snapshot_name}] @var{filename} [@var{filename2} [...]] @var{output_filename} -Convert the disk image @var{filename} to disk image @var{output_filename} +Convert the disk image @var{filename} or a snapshot @var{snapshot_name} to disk image @var{output_filename} using format @var{output_fmt}. It can be optionally compressed (@code{-c} option) or use any format specific options like encryption (@code{-o} option). |