cpuinfo pentium.cpuinfo
machine i586
majors 2.6
flavour 486
kernel-2.6
unusable \
  linux-generic \
  linux-generic-pae \
  linux-image-generic \
  linux-image-generic-pae \
  linux-image-2.6.36-1-generic \
  linux-image-2.6.36-1-generic-pae
env KERNEL_FLAVOUR generic
env RAM_END 0x4000000