"A careful reader may have noticed that a bootable OS image was hidden in the last issue of PoC‖GTFO,as one of the files in its dual PDF/ZIP structure (if you haven’t, download and extract it now!). This time, though, let’s hide it in plain sight. You will find by running ‘qemu-system-i386 -fda pocorgtfo02.pdf’ that the PDF file you are reading is also a bootable disk image."
From issue 2:
"A careful reader may have noticed that a bootable OS image was hidden in the last issue of PoC‖GTFO,as one of the files in its dual PDF/ZIP structure (if you haven’t, download and extract it now!). This time, though, let’s hide it in plain sight. You will find by running ‘qemu-system-i386 -fda pocorgtfo02.pdf’ that the PDF file you are reading is also a bootable disk image."