diff options
Diffstat (limited to 'qemu-img.c')
| -rw-r--r-- | qemu-img.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/qemu-img.c b/qemu-img.c index a6df64a949..efb6ca139e 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -2517,6 +2517,13 @@ static int img_convert(int argc, char **argv) goto out; } + if (out_baseimg_param) { + if (!qemu_opt_get(opts, BLOCK_OPT_BACKING_FMT)) { + warn_report("Deprecated use of backing file without explicit " + "backing format"); + } + } + /* Check if compression is supported */ if (s.compressed) { bool encryption = @@ -3797,7 +3804,7 @@ static int img_rebase(int argc, char **argv) * doesn't change when we switch the backing file. */ if (out_baseimg && *out_baseimg) { - ret = bdrv_change_backing_file(bs, out_baseimg, out_basefmt, false); + ret = bdrv_change_backing_file(bs, out_baseimg, out_basefmt, true); } else { ret = bdrv_change_backing_file(bs, NULL, NULL, false); } |