On Mon, Oct 15, 2012 at 12:07:37PM -0600, Eric Blake wrote: > On 10/15/2012 11:29 AM, Alex Bligh wrote: > > This patch allows qemu-img rebase to rebase an image to > > have no backing file, as opposed to merely allowing it to > > rebase to an existing backing file. > > You can already do that by rebasing to the empty string. And it is > feasible (although unlikely) to have a file named '-', where your patch > would make it impossible to use that file directly (although you could > still use './-'). NACK.
Also - is often used to tell tools that expect a file argument to use stdin/out. Something that would be quite useful for some qemu-img subcommands.
