This is a small blog - from the same person as flosslinuxblog for snippets / one liners / commands I found useful and for differences between Debian and Red Hat derived distributions and commands
Install kvm with UEFI bios [Debian]
The non-free package you need is OVMF - which packages Intel's Tianocore UEFI implementation - and installs to /usr/share/ovmf/OVMF
Call it with something like the following
qemu-system-x86_64 -m 1024 -bios /usr/share/ovmf/OVMF.fd -hda /var/lib/libvirt/images/[image filename] -cdrom [path to iso image]
Building a .iso image from the command line [Debian]
mkisofs was the original solution: if you have files in a directory that need to be burned to a CD ( the example uses cd_dir and cd.iso as the output file name]
genisoimage -o cd.iso -R -J cd_dir
[Includes Rock Ridge and Joliet extensions]