I have been asked to send a summary of the procedure to
make an alpha bootable CD.

1.	Prepare the (normal filesystem) image of the CD contents
2.	Copy an alpha kernel that will boot from a CD (the important
	issue is how its root filesytem works) to what will be the
	root directory of the CD (instkernel/netbsd.gz is a reasonable
	choice - and the obvious one for making installation CDs).
3.	Copy (alpha) /usr/mdec/boot to what will be the root of the CD
	(it needs to be called "/boot" on the CD).
4.	Use mkisofs (or mkhybrid) to build the ISO format image
5.	/usr/mdec/installboot image-file.iso /usr/mdec/bootxx_cd9660
6.	cdrecord (or equivalent)
7.	Boot...

mkisofs can also include i386 boot blocks.  To make it also be sun
bootable, run mksunbootcd between steps 4 & 5, and use the -s arg to
the alpha's installboot.

It is possible to compile the alpha installboot on other systems, but
I am by no means convinced that it has no endianness portability problems
(but nor do I know that it does - I just looked at it, and then decided to
run it on an alpha...)

kre