| AUTOCONF(4) | Device Drivers Manual (hp300) | AUTOCONF(4) | 
autoconf —
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.
%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.%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.4.3BSD for the HP300, in the distribution documentation package.
| February 17, 2017 | NetBSD 9.4 |