diff options
| author | Max Reitz <mreitz@redhat.com> | 2014-10-24 15:57:38 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2014-11-03 11:41:48 +0000 |
| commit | 9a86fe489552d47b57c92782471ddfb9e7f702e2 (patch) | |
| tree | 0edb41317a86504e14eb769a3a102342aadabee2 /qemu-img.texi | |
| parent | d4a3238af567939f4c51bb074af1ce8839e2ce2d (diff) | |
qemu-img: Empty image after commit
After the top image has been committed, it should be emptied unless
specified otherwise.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1414159063-25977-10-git-send-email-mreitz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'qemu-img.texi')
| -rw-r--r-- | qemu-img.texi | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/qemu-img.texi b/qemu-img.texi index e3ef4a00e9..420bd91177 100644 --- a/qemu-img.texi +++ b/qemu-img.texi @@ -167,7 +167,7 @@ this case. @var{backing_file} will never be modified unless you use the The size can also be specified using the @var{size} option with @code{-o}, it doesn't need to be specified separately in this case. -@item commit [-f @var{fmt}] [-t @var{cache}] @var{filename} +@item commit [-f @var{fmt}] [-t @var{cache}] [-d] @var{filename} Commit the changes recorded in @var{filename} in its base image or backing file. If the backing file is smaller than the snapshot, then the backing file will be @@ -176,6 +176,10 @@ the backing file, the backing file will not be truncated. If you want the backing file to match the size of the smaller snapshot, you can safely truncate it yourself once the commit operation successfully completes. +The image @var{filename} is emptied after the operation has succeeded. If you do +not need @var{filename} afterwards and intend to drop it, you may skip emptying +@var{filename} by specifying the @code{-d} flag. + @item compare [-f @var{fmt}] [-F @var{fmt}] [-T @var{src_cache}] [-p] [-s] [-q] @var{filename1} @var{filename2} Check if two images have the same content. You can compare images with |