The Linux kernel should now just boot up. Run Or1ksim from the main Linux directory:

cd linux-2.6.23
or32-uclinux-sim -f sim.cfg vmlinux
	

	Note
	Or1ksim will give a number of warnings about invalid parameters. This is because the sim.cfg file was originally created for a different version of Or1ksim. These parameters are never used in this version of Or1ksim and the warnings can be ignored.

Linux will initially show that it is copying from ROM to main memory, and then booting.

There is then a pause of one or two minutes, while the Linux kernel boots prior to configuring the UART I/O. Once that point is reached, then standard Linux boot messages will begin to appear. At the end of boot, the terminal will prompt to initiate a console session.

The core Linux commands are available, provided within a BusyBox environment. The default terminal behavior echoes back what is typed, so the initial command should be.

stty -echo
	

Normal Linux behavior is then available.

Custom programs may be added to the Linux environment by compiling them and adding them to the RAMdisk image. Instructions for this are provided on the MOF website.