shmacker@shmacker-laptop:/lib/modules/2.6.20-16-generic/build$ sudo make modules modules_install
  CHK     include/linux/version.h
  CHK     include/linux/utsrelease.h
  HOSTCC  scripts/genksyms/lex.o
  HOSTLD  scripts/genksyms/genksyms
  CC      scripts/mod/empty.o
  MKELF   scripts/mod/elfconfig.h
  HOSTCC  scripts/mod/file2alias.o
  HOSTCC  scripts/mod/modpost.o
  HOSTCC  scripts/mod/sumversion.o
  HOSTLD  scripts/mod/modpost
make[1]: *** No rule to make target `init/main.o', needed by `init/built-in.o'.  Stop.
make: *** [init] Error 2
shmacker@shmacker-laptop:/lib/modules/2.6.20-16-generic/build$