NeXT boot from Floppy & CD doesn't work: "unknown b

NeXT Computer, Inc. -> NeXT Black Hardware

Title: NeXT boot from Floppy & CD doesn't work: "unknown b
Post by: Thomas on August 07, 2010, 07:14:55 PM
So I just got a NeXTstation Turbo Color that looks like as if the hard drive was wiped clean.

This is what the boot screen shows:

CPU MC68040 33MHz, memory 70 nS
Ethernet address 0:0:f:1:55:d
Memory size 48MB
Testing The FPU, SCC, SCSI, Enet, RTC, Timer, Event Counter, Sound Out

Starting Extended Self Test
Extended SCSI Test
System test passed

Boot command: sd
boot sd(0,0,0)
booting SCSI target 0, lun 0
blk0 boot: sd()sdmach
Booting from SCSI target 0 lun 0
sdmach: not found
load failed

blk0 boot:


So I inserted the NeXT boot floppy that I made from the image in the archive here and enter "fd(0)" at the prompt. The drive starts reading but then complains that it can't read the disk:

blk0 boot: fd(0)
unknown binary
load failed

blk0 boot:


So today I went and bought an external SCSI CD drive and tried to boot directly from the original NeXTSTEP 3.3 installation CD - with nearly the same result:

blk0 boot: sd(1)
Waiting for drive to come ready ...
unknown binary format
load failed

blk0 boot:


This starts looking like a hardware issue. Has anybody an idea what could be wrong? Is there still someone around who could repair original NeXT hardware?
Title: NeXT boot from Floppy & CD doesn't work: "unknown b
Post by: Thomas on August 07, 2010, 10:17:07 PM
Found it!
It was the old hard drive. After I put a new one in (Seagate Barracuda 4lp 2GB) it installed just fine.
Haven't yet found what's wrong with the old drive. It's a Seagate ST1480N and so far I wasn't able to find a decent datasheet.
Also I don't understand why it wouldn't want to boot from floppy before ...

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