autoconf —
diagnostics from the autoconfiguration code
When NetBSD bootstraps it probes the innards of the
  machine on which it is running and locates controllers, drives, and other
  devices, printing out what it finds on the console. This procedure is driven
  by a system configuration table which is processed by
  config(1) and compiled into
  each kernel.
Autoconfiguration on the HP300s is similar to that on the VAX, the
    primary difference is in the naming conventions. On the HP300, if devices
    exist which are not configured they will be ignored; if devices exist of
    unsupported type they will be ignored.
Normally, the system uses the disk from which it was loaded as the
    root filesystem. If that is not possible, a generic system will use
    ‘rd0’ if it exists. If such a system
    is booted with the RB_ASKNAME option (see
    reboot(2)), then the name
    of the root device is read from the console terminal at boot time, and any
    available device may be used.
  - SPU type not configured
- You tried to boot NetBSD on an SPU type which it
      doesn't (or at least this compiled version of
      NetBSD doesn't) understand.
- nhpib%d at intio0 addr 0x478000 ipl %d
- nhpib%d at dio0 scode %d ipl %d
- fhpib%d at dio0 scode %d ipl %d
- hpibbus%d at nhpib%d
- hpibbus%d at fhpib%d
- An HP-IB was found at the internal bus or scode %d (the select code) with
      ipl %d (interrupt priority level). NetBSD will
      call it hpibbus%d.
- %s%d at hpibbus%d slave %d punit %d
- %s%d: %s
- An HP-IB disk or tape controller was found. For disks
      ‘%s%d’ will look like
      ‘rd0’, for tapes like
      ‘ct0’. The
      ‘%s’ in the first line will be a
      product type like ``7945A'' or ``9144''. The slave number comes from the
      address select switches on the drive.
- dvbox0 at intio0 addr 0x560000
- dvbox%d at dio0 scode %d
- gbox0 at intio0 addr 0x560000
- gbox%d at dio0 scode %d
- hyper%d at dio0 scode %d
- rbox0 at intio0 addr 0x560000
- rbox%d at dio0 scode %d
- topcat0 at intio0 addr 0x560000
- topcat%d at dio0 scode %d
- tvrx%d at dio0 scode %d
- gendiofb%d at dio0 scode %d
- sti%d at sgc0 slot %d
- A bit mapped display was found either at the ``internal'' address, at some
      ``external'' select code, or at some SGC bus slot. If it exists, the
      internal display will always be unit 0.
- %s%d at dio0 scode %d ipl %d
- Another peripheral controller was found at the indicated select code and
      with indicated interrupt priority level.
      ‘%s’ will be one of
      com(4) (single-port serial
      interfaces),
      hp300/dcm(4)
      (four-port serial interfaces), or
      le(4) (LAN cards). The slave
      number comes from the address select switches on the interface card.