[Libguestfs] Issue with virt-builder on Ubuntu 14.04

Hello, I am running into problems with virt-builder on my Ubuntu-14.04 install. Please find the checklist below: 1. What are you trying to achieve? I'm trying to build a standard Ubuntu 14.04 disk image. 2. What exact commands did you run? I ran "virt-builder ubuntu-14.04" 3. What was the precise error/output of these commands? The process gets stuck indefinitely at "Opening the new disk." I even left it over night and it did not get any farther. 4. Enable debugging, run the commands again, and capture the complete output. The file attached contains the output from the command with debugging enabled. 5. Versions of installed software: libguestfs: 1.28.10 compiled from source tarball but not installed supermin: 5.1.13 compiled from source tarball but not installed, used instructions from https://rwmj.wordpress.com/2014/03/08/tip-old-supermin-new-libguestfs-and... to compile libguestfs with supermin5 operating system: Ubuntu 14.04.2 x64 kernel: 3.13.0-55-generic #94-Ubuntu SMP Thu Jun 18 00:27:10 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux Additional information: This is a new issue, I used to use libguestfs 1.28.6 (compiled from source) and had no issues in the past until this weekend. So I compiled the newest version (1.28.10) and still have this issue. Additionally, I tried compiling and running it on a virtual machine (Ubuntu 14.04 image created months ago with virt-builder when it was working) and that works as expected. Therefore I believe that it is an issue with something on my host, but I can't seem to narrow it down. I can still use other libguestfs tools such as virt-df, and virt-inspector (those are the only two that I've tried) Any help is appreciated. Thanks, Shawn