On Fri, Oct 22, 2010 at 1:05 PM, Kamil Paral <kparal@xxxxxxxxxx> wrote: > https://fedoraproject.org/wiki/QA:Testcase_Anaconda_User_Interface_serial_console > > Does this work for you? > > "When using upstart (Fedora9), you may confirm that the serial device is > configured for login by examining the output of initctl." > > "initctl" itself doesn't work, "initctl list" seems to do what we need. > I also tried "initctl status serial", but that returns "initctl: Unknown > parameter: DEV". > > Should the wiki be updated? > > (We should also remove pre-Fedora9 instructions, that's for sure). A few years back I used to use netconsole to diagnose kernel crashes and I am attaching those notes here (not sure if this still works without change though): If it is necessary to capture kernel messages from a crash when nothing gets logged to /var/log/messages when rsyslog fails to get lines into the log, then To capture printk kernel messages from one machine to another on the same network: 1) Machine to be debugged is connected via ether wired at eg 10.0.0.50 2) Machine to do the capture is for example at 10.0.0.59 with MAC 00:13:CE:54:AB:88 (say) 3) On capturing machine open a console and switch off firewall, then do nc -l -u 6666 This means the machine is listening on port 6666 4) On machine to be debugged boot up and once setup as normal, then do ctrl-alt-f3i (say) and login as root. 5) Do the following: netconsole netconsole=4444@xxxxxxxxx/eth0,6666@xxxxxxxxx/00:13:CE:54:AB:88 echo 8 > /proc/sys/kernel/printk resizecons -lines 50 Now make the system crash and any kernel messages are printed on the alternate console, and copied to the listening machine - and from there the lines can be copied into a file. It may be possible to use "tee" to put another copy directly into a file. Further info at http://www.mjmwired.net/kernel/Documentation/networking/netconsole.txt and man nc Also it may be possible to boot with netconsole running via a kernel line edit - and then capture crashes earlier in the boot process. I hope this may help? -- mike c -- test mailing list test@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe: https://admin.fedoraproject.org/mailman/listinfo/test
