User's Manual

Serial Port Console Redirection 133

NOTE: The unattend.txt file is automatically created after installation.

[Data]

EMSPort

EMSBaudrate

Where,

EMSPort = Port used for serial communication. For example, COM1 or COM2.

EMSBaudrate = Configured baud rate for communication. The minimum

supported baud rate for supported Dell PowerEdge systems is 19200.

Serial Console redirection With SOL Proxy

Configuring Linux for Serial Redirection During Boot

The "SysRq key" is a key sequence that allows basic commands to be passed

directly to the kernel for debugging. Under some circumstances, it can also be

used to reboot remote managed systems. The serial console uses the RS-232

break function as the SysRq key. A "break" is a period of no transmission on

the serial line. To configure the "Sysrq" key in systems running Linux, follow

the instructions given below:

NOTE: The following instructions are specific to the Linux GRand Unified

Bootloader (GRUB). Similar changes would be necessary for using a different boot

loader.

CAUTION: In configuring the client VT100/VT220 emulation window, you must set

the window or application that is displaying the redirected console to 25 rows x 80

columns to ensure proper text display. Also, disable scrolling in the window

option. Otherwise, some text screens may be garbled.

Edit the file /etc/grub.conf, as follows. See the sample file that follows, which

shows the changes described in this procedure.

Add the following two new lines in the

general settings

section of the file:

serial --unit=0 --speed=19200

terminal --timeout=10 serial

Append two options to the kernel line:

kernel ............. console=ttyS0,19200