Supermin is a tool that we use to create and distribute the tiny libguestfs appliance. The tool has been in development since 2009 and was renamed from ‘febootstrap’ to ‘supermin’ in 2013. To find out more about this tool, see: http://libguestfs.org/supermin.1.html I have just released supermin 5.2.0. This is a stable branch version. Previously we didn't really have a split between stable and development releases, but I intend to maintain a 5.2 stable branch and a 5.3 development branch with stablising patches being periodically backported to the 5.2 branch. The just-released libguestfs 1.42 requires supermin >= 5.1.18. Ideally if you are packaging libguestfs 1.42, please use supermin 5.2.0 with it since it contains many patches which fix problems that are seen only with newer Linux kernels. (However this is not required.) Also supermin 5.2.0 will work with earlier versions of libguestfs, so upgrading should generally be safe. I have added supermin 5.2.0 to Fedora 31, 32 and Rawhide. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-builder quickly builds VMs from scratch http://libguestfs.org/virt-builder.1.html