Re: [Qemu-devel] Block format 'raw' does not support the option 'share-rw'

[Michal Suchánek]

On Thu, 28 Mar 2019 16:56:48 +0100
Michal Suchánek <address@hidden> wrote:

> Hello,
> 
> I tried to update my machine definitions to work with current qemu.
> 
> Unfortunately, while qemu 2.11 supports disk sharing with raw images
> qemu 3.1 does not. That looks bogus to me. What is not supported about
> writing random block into a file in parallel?

And of course it is because the option is supported on a different
option (yes, options that have options get convoluted) and the error
message is quite unhelpful in diagnosing that.

Now if different formats can register new option handlers which
magically make an option supported I don't see how the diagnostic can
do much better, unfortunately.

Thanks

Michal