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Diff: ForcingReboots
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Newer page: version 3 Last edited on Monday, May 8, 2006 10:46:44 pm by PerryLorier
Older page: version 2 Last edited on Monday, May 8, 2006 10:37:06 pm by MichaelJager Revert
@@ -9,9 +9,12 @@
 So you've got a bunch of processes waiting on disk because the device mounts on /home is hosed, and you know you can fix it, if you could just umount the f&^%ing thing. Now unless /home is NFS mounted (in which case you've probably got more than one machine with this problem, you poor bastard) with intr, you're probably screwed without a reboot. 
  
 But you can't reboot, right? You can't sync, or kill the processes waiting waiting on disk (cause, well, they're waiting on disk), or whatever, because the device is poked. 
  
-Well, apparently the cunning folks that invented reboot (or halt, take your pick), have thought of this, and added the -n (don't sync before reboot/halt) and -f (do it now, really) options. So try your luck with reboot -ns (might want to comment out the /home line in fstab first, presumably the whole reason you're trying to force a reboot without hitting the reset button is because the machine's a long way away, and having it die on reboot because it can't mount the hosed /home media is not going to be a good look). 
+Well, apparently the cunning folks that invented reboot (or halt, take your pick), have thought of this, and added the -n (don't sync before reboot/halt) and -f (do it now, really) options. So try your luck with <tt> reboot -ns</tt> (might want to comment out the /home line in fstab first, presumably the whole reason you're trying to force a reboot without hitting the reset button is because the machine's a long way away, and having it die on reboot because it can't mount the hosed <tt> /home</tt> media is not going to be a good look). 
  
 Danger Will Robinson, data loss may occur, etc, etc. Not my fault. 
+  
+An even more abrupt way of rebooting the machine, if magic syskey is enabled you can use:  
+<tt>echo b >/proc/sysreq</tt>, or press <tt>Alt-Sysreq-B</tt>  
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 CategoryErrors