11-21-2018
Firstly, thank you for providing such a comprehensive analysis of what you have tried. It helps us a lot to try and help you meaningfully.
Digest each of these statements I provide here and ask any questions if they're not clear enough.
The Netra 240 comprises (what can be regarded as two systems) the 'service processor' and the main processor.
The service processor (also known as SC) powers up as soon as volts are applied.
The main processor is under the control of the SC and may/or may not be programmed to power up automatically after the SC has started.
The SC reports its boot sequence via the SER-MGT port which is a RJ-45 interface!!!!! So you need a RJ-45 to DB-9 adapter which is a cable supplied in the box with a new machine. Do you have this? If not, a CISCO serial management cable (coloured light blue RJ-45 to DB-9) which CISCO network engineers use has the same pin-out so try and steal one of those.
Connect one end to the RJ-45 SER-MGT port (NOT the NET-MGT port) and the other end (DB-9) to an old laptop or the like with a serial DB9 port. Run a terminal emulator (default 9600-8-N-1) and then apply volts to the NETRA. If garbage appears on the terminal emulator, the baud rate is wrong; try a different speed.
Keep trying until it talks sense and then you are talking to the SC.
Last edited by hicksd8; 11-21-2018 at 04:22 PM..
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LEARN ABOUT NETBSD
inittodr
INITTODR(9) BSD Kernel Developer's Manual INITTODR(9)
NAME
inittodr -- initialize system time
SYNOPSIS
void
inittodr(time_t base);
DESCRIPTION
The inittodr() function determines the time and sets the system clock. It tries to pick the correct time using a set of heuristics that
examine the system's battery-backed clock and the time reported by the file system, as given in base. Those heuristics include:
o If the battery-backed clock has a valid time, and is not significantly behind the time provided by base, it is used.
o If the battery-backed clock does not have a valid time, or is significantly behind the time provided in base, and the time provided in
base is within reason, base is used as the current time.
o If the battery-backed clock appears invalid, and base appears non-sensical or was not provided (was given as zero), an arbitrary base
(typically some time within the same year that the kernel was last updated) will be used.
Once a system time has been determined, it is stored in the time variable.
DIAGNOSTICS
The inittodr() function prints diagnostic messages if it has trouble figuring out the system time. Conditions that can cause diagnostic mes-
sages to be printed include:
o There is no battery-backed clock present on the system.
o The battery-backed clock's time appears nonsensical.
o The base time appears nonsensical.
o The base time and the battery-backed clock's time differ by a large amount.
SEE ALSO
clock_ymdhms_to_secs(9), resettodr(9), time_second(9)
BUGS
Some systems use heuristics for picking the correct time that are slightly different.
BSD
September 6, 2006 BSD