Grml 2017.05 “Freedatensuppe” is a major update rebased on the software packages of the Debian Testing repositories, which will soon become Debian GNU/Linux 9 “Stretch” operating system. It uses the long-term supported Linux 4.9 kernel series, specifically kernel 4.9.29, and all Debian Testing updates released as of May 30, 2017. A bunch of improvements have been implemented in the grml2usb tool for writing Grml ISOs to USB flash drives, the grml-live build system for creating Grml-based Live Linux systems, the grml-hwinfo tool for collecting hardware information, grml-zshrc Zsh configuration, and grml-debootstrap debootstrap wrapper for installing pure Debian.