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For servers, serial console redirection can be accomplished using:
• CMC command line interface (CLI) or the RACADM connect command. For more information about
running the RACADM commands, see the Chassis Management Controller for PowerEdge VRTX
RACADM Command Line Reference Guide.
• iDRAC Web interface serial console redirection feature.
• iDRAC Serial Over LAN (SOL) functionality.
In a serial, Telnet, SSH console, CMC supports the connect command to establish a serial connection to
a server or I/O module. The server serial console contains both the BIOS boot and setup screens, and the
operating system serial console. For the I/O module, the switch serial console is available. There is a
single IOM on the chassis.
CAUTION: When run from the CMC serial console, the connect -b option stays connected until
the CMC resets. This connection is a potential security risk.
NOTE: The connect command provides the –b (binary) option. The –b option passes raw binary
data, and
cfgSerialConsoleQuitKey is not used. Additionally, when connecting to a server using
the CMC serial console, transitions in the DTR signal (for example, if the serial cable is removed to
connect a debugger) will not result in you exiting the application.
NOTE: If the IOM does not support console redirection, the connect command displays an empty
console. In that case, to return to the CMC console, type the Escape sequence. The default console
escape sequence is <Ctrl><\>.
To connect to an IOM:
connect switch-n
where n is an IOM label A1.
When you reference the IOM in the connect command, the IOM is mapped to switch as shown in the
following table.
Table 25. Mapping IO Module to Switches
IO Module Label Switch
A1 switch-a1 or switch- 1
NOTE: At a time, there can be only one IOM connection per chassis.
NOTE: You cannot connect to pass-throughs from the serial console.
To connect to a managed-server serial console, run the command connect server-n, where n is 1–4.
You can also use the racadm connect server-n command. When you connect to a server using the -
b
option, binary communication is assumed and the escape character is disabled. If the iDRAC is not
available, the No route to host error message is displayed.
The connect server-n command enables the user to access the server's serial port. After this
connection is established, the user can view the server's console redirection through CMC's serial port
that includes both the BIOS serial console and the operating system serial console.
NOTE: To view the BIOS boot screens, serial redirection has to be enabled in the servers’ BIOS
setup. Also, you must set the terminal emulator window to 80×25. Otherwise, the characters on the
page are not properly displayed.
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