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RE: ultra1 creator system freeze after terminal detach

Let me get this straight, you start up the Ultra1 through the serial line,
then you disconnect the serial line from the machine?  Meaning you
physically remove the cable?  If so, then that's your problem, when removing
the cable, you're sending enough noise through the chip to cause a break
signal to be sent.  Thus causing your problem.

The solution?  Set up the ultra1 to boot automatically, that way you don't
need to connect through the serial port, then just connect through the
network to it.  This is the way I set up my machines, and they run just

-----Original Message-----
From: Stefan Bauer [mailto:duke@splatterworld.de] 
Sent: Friday, November 12, 2004 12:23 PM
To: debian-sparc@lists.debian.org
Subject: ultra1 creator system freeze after terminal detach


i used a windows box with hyper terminal to connect to my sun 
workstation via seriel connection (rs232). after finnished the install 
process i detached the serial connection; reason was a total system 
freeze of my box. if i restart the connection (from hyper terminal to 
sun box) i can use 'go' to reactivate the whole box and everything works 

its a sun ultra1 creator, more infos below:

Sun Ultra 1 UPA/SBus (UltraSPARC 167MHz), Keyboard Present
OpenBoot 3.25, 128 MB memory installed, Serial #8973688.
Ethernet address 8:0:20:88:ed:78, Host ID: 8088ed78.


Release 3.25 Version 0 created 1999/12/03 11:38
OBP 3.25.0 1999/12/03 11:38
POST 3.11.4 1997/05/27 02:26

my question is now, how can i prevent the system freeze?

thanks in advance


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