-----Original Message----- From: rjones(a)redhat.com Sent: Mon, 2 Jul 2012 10:13:43 +0100 To: illuminatus(a)inbox.com Subject: Re: [Libguestfs] unexpected end of file mounting vdi image On Sat, Jun 30, 2012 at 03:01:24PM -0800, B. M. wrote: > I am unable to mount a vdi image with virt-df. Which version of virt-df, from where? What's the precise virt-df command that you're running? > I get this error in the libvirt log. 2012-06-24 02:37:22.484+0000: > 2364: error : qemuMonitorIO:583 : internal error End of file from > monitor libvirt doesn't have anything to do with virt-df, unless you're using the -c or -d options of virt-df in which case virt-df will use libvirt to look up the path to the guest disk image. In any case, there's no useful information in the libvirt log from running virt-df. > I don't really know from this output what the problem is and some > assistance would be appreciated. I'm attaching the output of the > libguest[fs] test program. In addition to answering the important questions above, try enabling debugging: http://libguestfs.org/guestfs-faq.1.html#debugging_libguestfs Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages. http://libguestfs.org

I'm guessing CentOS 6.2.

The error is right there in the output: qemu-kvm: -drive file=/VM/Ubuntu-Media/Ubuntu-Media-Copy.vdi,snapshot=on,if=virtio: could not open disk image /VM/Ubuntu-Media/Ubuntu-Media-Copy.vdi: Operation not supported qemu cannot understand this file. It could well be that VDI support is disabled in CentOS, or the file format is some later variant that qemu doesn't support.

There's a newer version of libguestfs in RHEL 6.3, but the basic problem here is with qemu.