TITLE    : Hard reset of a linux system
OS LEVEL : Linux (any version)
DATE     : 25/08/2006
VERSION  : 1.0
AUTHOR   : Hubertus A. Haniel (hubba@unixcook.com)
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Sometimes you may need to reboot a linux system but the kernel is in a state
that the normal shutdown may just hang and you are too far away to push the
power button.

Warning the following commands will not sync your disks!

Forcing reboot:
 echo 1 > /proc/sys/kernel/sysrq
 echo b > /proc/sysrq-trigger

Forcing shutdown:
 echo 1 > /proc/sys/kernel/sysrq
 echo o > /proc/sysrq-trigger