Re: How to boot a kernel?
I didn't see any replies to your question.
(But I have some filtering in place. Sorry if I missed anything.)
> Sorry, but I'm trying to learn and am beginning to realize I really know
> nothing about these beasts.
Sounds like you have a physical S/390 since you mention the SE laptop.
There is a way for some S/390 systems to present files on CD
as if they were files on tape. This is clearly true for
P/390, Multiprise, and IS class machines. Dunno about yours.
What kind of S/390 do you have?
What OS is it running right now?
there is no architectural reason why an S/390 could not boot
directly from CD-ROM. One type of mainframe disk is "FBA"
and a CD is just that: fixed block architecture. The more common
disk for mainframes is CKD or ECKD which does not present
fixed blocks to the I/O subsystem. CKD has its own strengths,
but I maintain that IBM has let us (customers) down by not
better supporting FBA, especially w/r/t CD-ROM.
The big money reason for retaining CKD (or for downplaying FBA)
is that MVS (and its children, ie: z/OS) never learned to use FBA.
But z/VM, and Linux, and VSE are all happy with either FBA or CKD
or a combination.