diff options
| author | Alex Bligh <alex@alex.org.uk> | 2012-10-16 13:46:18 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2012-10-24 10:26:18 +0200 |
| commit | a616673dd1c2e00db5e3458d2ba4b6619b78876a (patch) | |
| tree | 0084791e01804e73ac49f1dc51f023b85f387088 /qemu-img.texi | |
| parent | b3d0380ec245d73e5233366f541497ef92b2e283 (diff) | |
qemu-img rebase: use empty string to rebase without backing file
This patch allows an empty filename to be passed as the new base image name
for qemu-img rebase to mean base the image on no backing file (i.e.
independent of any backing file). According to Eric Blake, qemu-img rebase
already supports this when '-u' is used; this adds support when -u is not
used.
Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'qemu-img.texi')
| -rw-r--r-- | qemu-img.texi | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/qemu-img.texi b/qemu-img.texi index 8b05f2c428..42ec392c36 100644 --- a/qemu-img.texi +++ b/qemu-img.texi @@ -148,7 +148,9 @@ Changes the backing file of an image. Only the formats @code{qcow2} and The backing file is changed to @var{backing_file} and (if the image format of @var{filename} supports this) the backing file format is changed to -@var{backing_fmt}. +@var{backing_fmt}. If @var{backing_file} is specified as ``'' (the empty +string), then the image is rebased onto no backing file (i.e. it will exist +independently of any backing file). There are two different modes in which @code{rebase} can operate: @table @option |