To run Linux on a i845 you will need at least:
XFree86 4.2.99.3 or later
linux-drm-4.2.0-kernelsource.tar.gz
from http://www.xfree86.org/~alanh
latest kernel headers that you can get
latest kernel binary
binutils
coreutils
libc6
stat
dash
cramfsprogs
initrd-tools
deb-helper
kernel-package
libncurses5-dev
fileutils
gcc
and a lot of luck