bootarchive corrupt, how to mount SATA root disk in failsafe?

I have a HP DL385 with 4 SATA drives, the machine crashed today for unknown reason and rebooting was not possible since the boot-archive got corrupted.

I booted into failsafe, I get a prompt but I also get

"No installed OS instances found".

Apparently the SATA driver I loaded from a separate disk during the installation is not part of the failsafe kernel.

How do I get the boot-archive repaired? Is there any way?

Any hints are very appreciated.

--

Markus

[507 byte] By [mdoehra] at [2007-11-27 7:35:15]