Serial Console to login to single user mode

J

Just_Johnny

I have a problem, occasionally I need to login single user mode and repair a file system on one of my problem servers.

Is it possible to use a serial console to login and do this remotly?
 
From the machine you want connect to

# echo “-S115200 –Dh” >> /boot.config

# vi /etc/ttys

Change this line

ttyd0 "/usr/libexec/getty std.9600" dialup off secure

to this

ttyd0 "/usr/libexec/getty std.115200" dialup on secure

Reboot

Note* Serial cable must be connected to com port 1 on freebsd machine.

Connect (putty)

From putty select the serial radio button.

Change the speed from 9600 to 115200

OPEN
 
I would really recommend using 9600 for your speed. It's basically an industry standard and is fast enough for you to get the job done.
 
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