On 9/30/2013 21:34, Barry Brimer wrote:
>> I'm using 115200, 8N1, VT102. I can echo m > /proc/sysctl-trigger,
>> and dmesg shows that the sysrq was received when initiated via the
>> procfs interface. But not over serial, and that's what I need.
>
> I could be wrong .. but you may need to edit your grub config to convince
> your system that the serial terminal is a/the console ..
That's only part of it. The topic has a whole HOWTO dedicated to it:
http://www.tldp.org/HOWTO/Remote-Serial-Console-HOWTO/
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