Garbage on the Serial Console

From: Eric Paul (epaul_at_profitlogic.com)
Date: 01/29/04

  • Next message: Ken Huang: "(SUMMARY): How to do un-mirrored disk replacement without loss of data?" 
    To: "'sunmanagers@sunmanagers.org'" <sunmanagers@sunmanagers.org>
Date: Thu, 29 Jan 2004 15:45:44 -0500

    We have a number of Suns that we administer either via the serial port or a
    RSC card. Sometimes, when logged in to the console on the serial port, the
    display will become corrupted (either by catting a binary file or generating
    an escape sequence somehow). I have tried everything I can think of to
    reset this, but no dice.

    I've tried:

    /usr/ucb/reset
    stty sane
    echo ^v esc c

    The only thing that does fix things is a reboot.

    If I'm on a RSC card, if I exit the console back to ALOM, the display is
    fine. Resetting the RSC doesn't help, as soon as I drop back to the
    console, the display is messed up again.

    I searched through the archives, and found one other person with the
    problem, but no solution.
    http://marc.theaimsgroup.com/?l=sun-managers&m=99548313924836&w=2

    Is there any way to reset the console without rebooting the system?

    Thanks in advance. I will summarize.

    Eric
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