ultra1 creator system freeze after terminal detach
hello, 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 fine. 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. OpenBOOT: 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 stefan
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 fine! -Original Message- From: Stefan Bauer [mailto:[EMAIL PROTECTED] Sent: Friday, November 12, 2004 12:23 PM To: debian-sparc@lists.debian.org Subject: ultra1 creator system freeze after terminal detach hello, 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 fine. 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. OpenBOOT: 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 stefan -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: ultra1 creator system freeze after terminal detach
In article [EMAIL PROTECTED] [EMAIL PROTECTED] writes: 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 fine. my question is now, how can i prevent the system freeze? On sun systems with serial console, send a break signal will put your system in the openboot monitor the same as L1-a on a console keyboard. Unfortunatly, disconnecting a terminal can be interpreted as break. Some versions of openboot have a command to disable this behavior. (I don't remember what it is, try help and the openboot prompt.) -- Blars Blarson [EMAIL PROTECTED] http://www.blars.org/blars.html With Microsoft, failure is not an option. It is a standard feature.
Re: ultra1 creator system freeze after terminal detach
It sounds like hyperterm sends out a break signal during disconnect. There are several ways to correct your problem. 1. Figure out how to disable the sending of the break signal from hyperterm or use other terminal program which does not send out the break signal. 2. You can configure OBP not to react to the break signal. I don't remember how to do this. But this is not a good idea. 3. You can configure the kernel to ignore the break signal. sysctl -w kernel/stop-a=0 On 11/12/2004 12:22 PM, Stefan Bauer wrote: hello, 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 fine. 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. OpenBOOT: 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 stefan