How to make a remote reboot when system has panic'ed ?

Shane Ambler FreeBSD at ShaneWare.Biz
Mon Jan 12 08:36:02 PST 2009


Nathan Whitehorn wrote:
> Niels S. Eliasen wrote:
>> hi guys
>> Having some issues with the current kernel getting sound and keyboard 
>> working (thanks sofar Nathan! ) made me think about how to reboot when 
>> the system has panic'ed...  remotely ??
>> ie. a virtual CTRL-OPTION-POWER ?
>> is that possible at all?
> 
> How remotely? During a panic, there is necessarily no network access. 
> Typing reset at the debugger prompt, though, via a serial console or 
> firewire (dcons) will cause a reboot, and the machine with the other end 
> of the console can be connected to the network.
> 
>> and at the same time.... How about a automatic reboot after a 
>> power-outage ? (the option is available within MacOSX/YDL Linux as 
>> well) ??
>> just rambling ....
> 
> See the sysctl dev.pmu.0.server_mode.
> -Nathan

May not help - but then it may point your thoughts the right way -

Dedicated Hosting services have been known to provide remote access 
(either web or telnet access) to the UPS powering your server allowing a 
power cycle as needed. Combined with a remote console access (think 
second pc with serial port connection to the server in question) 
allowing single user booting to swap kernels from across the globe.

X10 home automation anyone??



-- 

Shane Ambler
FreeBSD (at) ShaneWare (dot) Biz

http://ShaneWare.Biz


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