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Dear All, Thanks go to Hohn Hearns, John H Robinson and Theo Boersma for their suggestions, and to Roger Whittaker for providing an important clue. Also to a colleague Dan Jones for telling me about Cntrl-Alt-F10. The sysrq feature *does* work on SuSE kernels, but in order to see the messages that get displayed you need to switch the console to screen 10 (by typing cntrl-Alt-F10). If you are on screen 1 (say) the commands will work silently. Even on screen 10 my Alt-Sysrq-h failed on one system. But Alt-Sysrq-t and Alt-Sysrq-m can be used as non-destructive tests. For more information about the sysrq key (which can get you out of trouble if your system is in a mess) see /usr/src/linux/Documentation/sysrq.txt .SuSE kernels are already configured to use it, but you need to ensure in addition that /proc/sys/kernel/sysrq contains 1. This will happen automatically at boot time providing you set ENABLE_SYSRQ="yes" in /etc/rc.config . Regards, Bob -- ============================================================== Bob Vickers R.Vickers@cs.rhul.ac.uk Dept of Computer Science, Royal Holloway, University of London WWW: http://www.cs.rhul.ac.uk/home/bobv Phone: +44 1784 443691 _______________________________________________ LinuxManagers mailing list - http://www.linuxmanagers.org submissions: LinuxManagers@linuxmanagers.org subscribe/unsubscribe: http://www.linuxmanagers.org/mailman/listinfo/linuxmanagers
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