[Libguestfs] Release notes appendix for libguestfs 1.20 on Fedora 18

Richard W.M. Jones rjones at redhat.com
Thu Dec 13 15:15:55 UTC 2012

On Thu, Dec 13, 2012 at 01:53:24PM +0000, Richard W.M. Jones wrote:
> I'm just about to release libguestfs 1.20.  This appendix covers
> issues specific to Fedora 18.
> Fedora 18 defaults to using the libvirt attach-method, meaning that
> libvirt is used to create and manage the libguestfs appliance.  There
> are several benefits to this (see the full release notes).  You can
> switch back to the ordinary method (directly running qemu) at any time
> by doing:
>   export LIBGUESTFS_ATTACH_METHOD=appliance
> There is a bug in libvirt (or perhaps libnl, or somewhere else) which
> causes libvirtd to segfault occasionally:
>   https://bugzilla.redhat.com/show_bug.cgi?id=875741
> You will need selinux-policy >= 3.11.1-63.fc18 and
> libvirt >= in order to use SELinux in Enforcing mode
> giving you the full benefit of sVirt protection.  I have tested this
> and it all works well for me, but please open bugs if you find any
> problems.

[This just in ...]

If you are using Xen as your primary hypervisor on Fedora 18, then
libguestfs may fail with an error:
  unsupported flag 0x2 in function xendaemoncreatexml
Try one of the following solutions:
  export LIBGUESTFS_ATTACH_METHOD=libvirt:qemu:///session


Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-top is 'top' for virtual machines.  Tiny program with many
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