| commit | 35ddd9300b81b70171da10134c36a7e22c845f16 | |
| author | Max Reitz <mreitz@redhat.com> | |
| Thu, 9 May 2019 17:52:35 +0000 (9 19:52 +0200) | ||
| committer | Kevin Wolf <kwolf@redhat.com> | |
| Fri, 10 May 2019 14:45:40 +0000 (10 16:45 +0200) | ||
| tree | 27b5a96368c48bdc1cc40bb7aded8d19e7f0dd62 | treesnapshot (tar.gz zip) |
| parent | 433e8e3b22021027ab8bc27f6fefa132fb33bfed | commitdiff |
qemu-img: Allow rebase with no input base
Currently, without -u, you cannot add a backing file to an image when it
currently has none:
$ qemu-img rebase -b base.qcow2 foo.qcow2
qemu-img: Could not open old backing file '': The 'file' block driver
requires a file name
It is really simple to allow this, though (effectively by setting
old_backing_size to 0), so this patch does just that.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Currently, without -u, you cannot add a backing file to an image when it
currently has none:
$ qemu-img rebase -b base.qcow2 foo.qcow2
qemu-img: Could not open old backing file '': The 'file' block driver
requires a file name
It is really simple to allow this, though (effectively by setting
old_backing_size to 0), so this patch does just that.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| qemu-img.c | diffblobblamehistory |