Explore the Petitboot Linux-based bootloader in this 30-minute conference talk from linux.conf.au. Learn about its evolution from potential server application to primary bootloader for OpenPOWER computers, including supercomputers. Discover how Petitboot leverages open-source tools like Buildroot and Busybox, and uses kexec for booting. Understand its flexibility across architectures, including x86 and ARM. Delve into Petitboot's components, usage, net building, boot order, and applications. Examine the advantages of using Linux in the bootloader, potential disadvantages, and security considerations. Gain insights into Petitboot's future development and its place in the current bootloader ecosystem.