Creating ramdisks

To execute a system with the Linux kernel, the easiest way is to create a ramdisk: an image of the file-system containing your system (basically a zip file).

To do that, put your system files into a directory /path/to/my/system. Then execute:

(cd /path/to/my/system ; find . | cpio -o -H newc | gzip) > myimage.img

You need to have the cpio and gzip programs installed. It builds a ramdisk file named myimage.img in the current directory.