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howtos:safe_reboot_a_frozen_machine [d/m/Y H:i] (current)
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 +====== Raising Elephants ======
  
 +To perform a safe reboot of a Linux computer which has otherwise locked up, the mnemonic "​**R**aising **E**lephants **I**s **S**o **U**tterly **B**oring",​ or simply remembering the word "​BUSIER"​ backwards, is often useful. ​
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 +It stands for Raw (take control of keyboard back from X), tErminate (send SIGTERM to all processes, allowing them to terminate gracefully),​ kIll (send SIGKILL to all processes, forcing them to terminate immediately),​ Sync (flush data to disk), Unmount (remount all filesystems read-only), reBoot. ​
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 +These keystrokes should be entered a few seconds apart. This should prevent a fsck being required on reboot; it also gives some programs a chance to save emergency backups of unsaved work.
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 +To execute it hold down ALT+PrtSC (SysRq) and then hit the other characters with a second or two between: ALT+PrtSc + R+E+I+S+U+B
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 +Source: http://​en.wikipedia.org/​wiki/​Magic_SysRq_key
howtos/safe_reboot_a_frozen_machine.txt · Last modified: d/m/Y H:i (external edit)