bunzip2 meego-n900-open-armv7l-1.0.0.20100525.1-sda.raw.bz2 sudo dd bs=4096 if=meego-n900-open-armv7l-1.0.0.20100525.1-sda.raw of=/dev/sdX sudo ./fastboot -c 'root=/dev/mmcblk0p1 rw rootfs=ext2 init=/sbin/init rootwait noinitrd' boot zImage
This should bring up an xterm on you Nexus 1.
Thanks to storm99999 for these instructions