Re: [Libguestfs] [PATCH v2] launch: add support for autodetection of appliance image format

On Tue, Jun 27, 2017 at 07:42:20PM +0300, Pavel Butsykin wrote: > This feature allows you to use different image formats for the fixed > appliance. The raw format is used by default. I wonder if you're stil using this feature? Unfortunately because of a recent change in libvirt it is no longer possible to have a backing file where libvirt will autodetect the format. See: https://bugzilla.redhat.com/show_bug.cgi?id=1798148#c3 Therefore the only way to actually do this now would be either for libguestfs to detect the format (there is an API for this: guestfs_disk_format), or else to hard code the format in the ./configure option. In any case I will need to revert this until we can think of something else (if you still need the feature) because it will simply break with libvirt >= 6.0.