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Serial Console Blues
- To: "Linux-Il" <linux-il(at-nospam)linux.org.il>
- Subject: Serial Console Blues
- From: "Haim Gelfenbeyn" <rnews(at-nospam)hageltech.com>
- Date: Thu, 17 May 2001 11:43:51 +0300
- Delivered-To: linux.org.il-linux-il@linux.org.il
- Importance: Normal
- Reply-To: <haim(at-nospam)hageltech.com>
- Sender: linux-il-bounce(at-nospam)cs.huji.ac.il
-----Original Message-----
From: Haim Gelfenbeyn [mailto:haim@invircible.co.il]
Sent: Thursday, May 17, 2001 11:41 AM
To: Linux-Il
Subject: Serial Console Blues
Hello,
My Linux box does not have any video/keyboard/mouse, its connected to
other management machine with serial cable. I have two problems with
this setup:
1. Some daemon programs that run in init. scripts write to STDERR on
critical errors, etc. If management machine is down, it looks that
write to /dev/console blocks, therefore these programs hung. Am I
correct here, and can I do anything about it?
2. I experienced a few mysterious crashes lately, and want to send
"MagicKey" over serial console next time that machine crashes.
/usr/src/linux/Documentation/sysrq.txt says: "send a BREAK, then
within 5 seconds a command key. Sending BREAK twice is interpreted as
a normal BREAK.". Question is, what is BREAK and how I send it from
SecureCRT on Windows or other Windows terminal program?
Thanks,
Haim.
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