I have added the support for the IBM 7024 model E20 and E30 to -current.  I
have also modified the RESIDUAL_DATA_DUMP kernel option to provide more verbose
dumping of the residual data.

If you have a machine that is currently not supported by NetBSD/prep, you
should compile a kernel with RESIDUAL_DATA_DUMP enabled, and boot that.  With
the information that dump provides, it should be possible to port to your
machine.

---
Tim Rightnour <root@garbled.net>
NetBSD: Free multi-architecture OS http://www.netbsd.org/
Genecys: Open Source 3D MMORPG: http://www.genecys.org/