Re: [Libguestfs] [libguestfs] Problem using virt-sysprep with RBD images

> virt-sysprep -a rbd://host-name/pool-name/device-name

> qemu-img create rbd:pool-name/device-name 5G

On Wed, Nov 06, 2013 at 02:25:54PM -0700, Jon wrote: > Hello Richard, > > Haha, ok, here's a good one: I commented that if statement out at line 300, > applied your patch (I see you updated the github of this code, perhaps > that's the best place to grab the code from), and when I run virt-sysprep, > I get the following parameter for my disk drive: > > >> qemu-system-x86_64: -drive > file=rbd:ibvirt-pool/server-clone-test:mon_host=192.168.0.40\:6789\;192.168.0.35\:6789\;192.168.0.2\:6789:auth_supported=none,cache=writeback,id=hd0,if=none: > error opening pool ibvirt-pool > > Since "ibvirt-pool" doesn't exist. :) > > So this says to me that the function "create_drive_non_file" is consuming > that first slash somewhere. Unfortunately this code is rather intricate (and intricately broken), but the problem is likely to be here: src/drives.c: /* Skip the mandatory leading '/' character on exportname. */ return safe_asprintf (g, "rbd:%s:mon_host=%s%s%s%s", &src->u.exportname[1], mon_host, username ? username : "", auth, secret ? secret : ""); The problem that this code is trying (and failing) to deal with is that when you use the URL on the guestfish command line, the URL is something like "rbd://example.com/foo/bar" and the path part of this has to start with a "/" character. There is simply no way to specify a URL without this. However this assumption should *not* have made its way into the libguestfs library, since other paths into this code, such as from libvirt XML, have no such restrictions. So it's currently somewhat broken. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming blog: http://rwmj.wordpress.com Fedora now supports 80 OCaml packages (the OPEN alternative to F#)