drew@hydra.unm.edu (E Drew Einhorn ADV.SCI.Inc) (04/07/90)
TFM (Sun, System & Network Administration, Chapter 11) describes kernel reconfiguration for older hardware to support using the same line for dial in and dial out. Anybody know the variations on this procedure for a Sparcstation 1? Thanks, drew@hydra.unm.edu
guy@uunet.uu.net (Guy Harris) (04/10/90)
>TFM (Sun, System & Network Administration, Chapter 11) describes kernel >reconfiguration for older hardware to support using the same line for dial >in and dial out. Anybody know the variations on this procedure for a >Sparcstation 1? See TFM - in this case, TFM is the "SPARCStation 1 SunOS 4.0.3 Sun-4c Release Notes", on page 82 (in the "Rebuilding the Kernel" section), where it notes: Users familiar with other SunOS kernel configuration files may ask where the "flags" word goes that specifies ignoring CARRIER DETECT for the "zs" (UART) driver. This has been replaced by data in the EEPROM, which the kernel autoconfiguration code asks the PROM to fetch. These fields ("ttya-ignore-cd" and "ttyb-ignore-cd") may be set using either the "eeprom(8S)" command, or commands from the PROM monitor (see "monitor(8S)). In SunOS 4.1, I expect both the "flags" field and the EEPROM field to be replaced by the "local" flag in "/etc/ttytab".
wytten@umn-cs.cs.cs.umn.edu (Dale Wyttenbach) (04/11/90)
auspex!guy@uunet.uu.net (Guy Harris) writes: >See TFM - in this case, TFM is the "SPARCStation 1 SunOS 4.0.3 Sun-4c >Release Notes", on page 82 (in the "Rebuilding the Kernel" section), where >it notes... I have heard that there is a bug whereby the EEPROM settings for ttya are mapped onto the settings for ttyb. The result is that you pull a lot of hair because you think that you have the ttya configured one way, but in reality it is configured however ttyb is. (I'm not sure if the alleged mapping of tty settings is ttya -> ttyb, ttyb -> ttya, or ttya <-> ttyb). Can anyone confirm and/or clarify this? >In SunOS 4.1, I expect both the "flags" field and the EEPROM field to be >replaced by the "local" flag in "/etc/ttytab". Speaking as someone who has wrestled with ignore carrier detect on most combinations of architectures and OS revisions, this sounds REAL COOL. Dale Wyttenbach | ...rutgers!umn-cs!wytten wytten@cs.umn.edu | wytten@umnacvx.bitnet Computer Science Department Systems Staff--University of Minnesota, Minneapolis