About grml grml is a bootable CD (live CD) based on Knoppix and Debian. grml includes a collection of GNU/Linux software especially for users of text tools and system administrators. grml provides automatic hardware detection. You can use grml as a rescue system, for analysing systems/networks, or as a working environment. It is not necessary to install anything on a hard disk. Due to on-the-fly decompression, grml includes about 2GB of software and documentation on the CD.