Oz 0.13.0 release

I'm pleased to announce release 0.13.0 of Oz. Oz is a program for doing automated installation of guest operating systems with limited input from the user. Release 0.13.0 is a bugfix and feature release for Oz. Some of the highlights between Oz 0.12.0 and 0.13.0 are:

• For Fedora, if the user specifies a version, but that isn't supported yet, try the last supported version (in this case), as that will often work.
• Fix a regression where we forgot to force the qcow2 image type
• Allow installs that use more than one installation device
• Add support for RHEL 6.5
• Rename OEL-6 to OL-6
• Add support for Ubuntu 14.04
• Add Windows 8.1 support
• Add CentOS-7 support
• Add the ability to specify kernel parameters in the TDL
• Make sure to remove dhcp leases from guests after the install
• Fix support for FreeBSD
• Add in support for TDL "precommands"; these are commands that are run *before* package installation
• Fix up file locking
• Add support for RHEL 5.11
• Remove Ubuntu ssh keys at the end of installation
• Add support for Ubuntu 14.10
• Add support for XInclude, for merging various TDLs together
• Add Fedora 21 support
• Add support for ppc64 and ppc64le

A tarball and zipfile of this release is available on the Github releases page: https://github.com/clalancette/oz/releases. Packages for Fedora-20, Fedora-21, Fedora-22, EPEL-6, and EPEL-7 have been built in Koji and will eventually make their way to stable. Instructions on how to get and use Oz are available at http://github.com/clalancette/oz/wiki. If you have questions or comments about Oz, please feel free to contact me at clalancette at gmail.com, or open up an issue on the github page: http://github.com/clalancette/oz/issues. Thanks to everyone who contributed to this release through bug reports, patches, and suggestions for improvement.

RPM dependency trees

Recently I wondered what the dependency tree for Aeolus looked like in Fedora. I knew we had a whole host of dependencies, but I thought it would be instructive to see it visually.

This has been mentioned in other blog posts in the past, but the basic procedure to do this on Fedora is:

# yum install rpmorphan graphviz
$ rpmdep -dot aeolus.dot aeolus-all
$ dot -Tsvg aeolus.dot -o aeolus.svg

The rpmorphan provides the rpmdep binary. The rpmdep binary is a perl script that runs through the RPM dependency information, outputting one digraph node per-line. Then we use dot (part of the graphviz package) to take that digraph information and generate an image out of it. In the above example I made it generate an SVG, but you can have it output PNG, JPEG, PDF, etc. The full list of what dot can do is here: http://www.graphviz.org/doc/info/output.html