I learned something new today.
It's a trick with "Alt+SysRq" you can do to an unresponsive Linux-based
machine (ctrl-alt-backspace not working)
Alt-SysRq-R (Puts keyboard in raw mode so kernel can receive commands)
Alt-SysRq-S (Puts the hard drive in sync)
Alt-SysRq-E (Stops all running processes)
Alt-SysRq-I (Kills all remaining processes)
Alt-SysRq-U (Unmounts the file system and mounts it in read-only mode)
Alt-SysRq-B (Reboots the system)
From:
http://lxtips.posterous.com/recover-an-unresponsive-linux-system-with-alt
I'm not sure why I never heard about that one in >10years of using
Various Linux/Unix-based systems.
--
David Montminy
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