Hi! I don't think that's the problem in this case - the error that is being printed out: cn 1 csr 176540 vector 344 no address found for kl/dl-11 comes from what appears to be a missing entry (or an entry that autoconfig can't find) in the /unix kernel symbol table. One way, I think, this can happen is when booting an alternate kernel (/genunix instead of /unix). THe only suggestion I have at this point is to turn on debugging in autoconfig. To do this go into /sys/autoconfig/main.c and add a line that forces 'debug = 1;', then install (after saving the original ;)) autoconfig into /etc and reboot. Hopefully useful info about what autoconfig is doing will be printed. If I find the time I'll power up the 11/73 and see what it says but I've had a DHV11 on the system for years (it's how I got the RTS/CTS flow control working). My suspicion is that the DHV clone isn't behaving 100% like a DEC DHV card. Doing a 'reboot' (which performs a sync(2) call) will overwrite what fsck has done - when the message about "reboot" comes out you should use the front panel or ODT to simply halt the cpu and then start the boot process cold. Cheers, Steven Schultz