If lgs4 is on, but still not booting, make sure that the ethernet cable is connected between the motor controller rack e-net hub and the MAU box. Also check that the MAU box is firmly connected to the port on lgs4. Push the reset button on lgs4 to force a reboot.
If this fails, check and make sure the boot file still exists on orthrus. If it doesn't, you will have to retrieve it off an orthrus backup tape.
If all else fails, you can use a terminal emulator program on lgs13 to see what lgs4 is doing at boot time and where the problem may be. Information about connections and the terminal emulator program are on lgs13 (click on the lgs4 (alpha term) README.TXT icon).
temperature -8 (or -7) errors are common and inconsequential. You can ignore these.
Bad control matrix errors happen if for some reason you run out of disk space or create a bad control matrix with the cm command. Just copy and old good control matrix into the new control matrix name to get rid of the error.
|Quadrant Letter||Fiber Number||Data Cable Number|