[LinuxBIOS] remote reset
paul at astro.gla.ac.uk
Tue Feb 27 12:00:47 CET 2007
On Monday 26 February 2007 00:05, Ryan Moszynski wrote:
> can a machine running linuxbios be remotely reset/reboot from
> crashed/frozen state over a network connection?
If you want an ultra-cheap solution to this and you have a NIC with external
Wakeup-on-LAN (WoL) connector (such as the old Intel EtherExpress Pro), you
can connect the WoL signal (via a transistor and a few resistors) to the mobo
You send the WoL ethernet frame and the machine reboots, independent of any
BIOS or software state.
Its probably not such a good idea for production environments, but in my
experience it does work very nicely. The cost (per machine) is probably ~£1
+10--20 minutes of time building the unit and install it. In fact, it was
cheaper to replace the NICs (for ones with external WoL connectors) that to
use external signalling device.
The electronics should be safe: I believe a properly made Reset-on-LAN will
not damage a machine; but, needless to say, you do this at your own risk!
I'm putting together a page together describing this in more details. I can
post the details here, if people want.
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