Hi Jochen!

> I was trying to get unixfs to work (I used the one in the "native"
> directory of the old bootloader) by trying several SWIs, but none
> worked. After rebooting the machine, SCSIFS now complains that my
> boot-drive is an "unknown drive". Can someone tell me what went wrong
> and how I can revitalise my HD?

Bah, unlucky you. :-(((
You're probably lost, unless one of the gurus here has a hot tip.. If you try
to reinitialise your partitions with !ScsiMgr (I know you've also got a
Cumana), their directory information is also overwritten.
Have you tried mailing to Cumana yet?

Hope you didn't lose too much,

Markus