On Mon, Jul 02, 2007 at 06:29:03PM +0900, Saori Fukuta wrote: > Hi, > > I opened the new bugzilla: > Bugzilla Bug 246441: can not specify the type of driver device > URL: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=246441 > > And I attached the patch to fix this problem. There seems to be two different use cases for the driver type, and I'm not sure which one you are trying to address. The patch seems to be just giving the user the ability to specify a sub-type for blktap based files. The code which actually creates the disk image though will always simply create raw disks - so it doesn't make much sense to specify a custom driver type there. It explicitly doesn't deal with HVM, even though QEMU is quite happy dealing with the various disk formats. Rather than directly specifying a driver type, I think what would be more useful is to have an option called --disk-format=TYPE Which accepts TYPE being one of: raw vmdk qcow vpc cow cloop dmg And then - Makes sure the disk image we create is using appropriate file format - Automatically choose the best driver type to match the disk type. One question I wonder is how to best create the actual disk image - with raw disks its easy - we're either seeking to the end (sparse), or just writing lots of zeros (non-sparse). The other formats like vmdk, qcow, etc have some special file structure that needs writing out. We could add code for doing this in python in virt-install, or we could simply run the 'qemu-img' command to create the file in non-raw case. The latter would probably be easiest to do, although we'd explicitly need to add a dependancy on the QEMU rpm, since qemu-img isn't part of the Xen RPMs, or part of libvirt. Regards, Dan. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=| _______________________________________________ et-mgmt-tools mailing list et-mgmt-tools@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/et-mgmt-tools
