I have been looking for a "net terminal" to replace Wyse 60 terminals
in an AIX shop and found the Damn Small Linux web site.

I down loaded dsl-0.9.1.iso and burned it to CD and it boots ok
but does not release the CD when booted with: DSL toram.

This would not be a problem except the "how to" to modify the
distribution and re-burn a modified ISO to CD implies that this can
be done even if the boot device is the CD writer.

USB is not an option as the customer (for the terminal replacement)
requires that there be no way a user can copy files from the AIX
system to any type of removable media. Therefor the systems will
be older Pentium motherboards without USB ports, and no floppy drives,
booting only from the modified DSL CD.

This also requires that we disable (remove) all the fine software
provided on the DSL distribution: No browses, No e-mail, No Office
Apps. Just a Wyse60 terminal program run from the command line
(no graphical Windows)

Anyone with suggestions on how to accomplish this?

Observations: When dsl-0.9.1.iso boots on my office Windows
system (Asus P4GE-MX 2.26GHz Celeron, 512M RAM), it seems to
identify the on-board sound card, But nothing I do can get DSL
to make a sound (or play music). Running sndconfig seems to
identify the card, but when it trys to update the configuration file,
the system announces that "can't write to read-only file system"
(this is from memory, I did not record the exact message).
NOTE: This was booted with "dsl toram vga=788"

Have a look at the floppy based distros at http://www.confederatelinux.com/linux/floppy.htm

You can make one that boots minicom with your terminal parameters..

re: can't write to read-only file system

Try running /etc/init.d/mkwriteable
DSL by default is writeable to only a few directories for the purpose of saving precious RAM usage. mkwriteable copies more of the system into RAM so you can write to it.