HP AB500A - Integrated Lights-Out Advanced User Manual page 102

Character value
0x1F
0xFF
Using a Linux session
You can run an iLO 2 virtual serial port on a Linux system, if the system is configured to present a terminal
session on the serial port. This feature enables you to use a remote logging service. You can remotely log
on to the serial port and redirect output to a log file. Any system messages directed to the serial port are
logged remotely.
Some Linux text modes are actually graphical modes and cannot be displayed using iLO 2 Text console.
For example, SLES terminals are text on graphics mode even though they appear to be text-based it does
not display correctly in iLO 2 Text Console. If you attempt to use an unsupported mode, iLO 2 Text
Console display a message indicating that the server is using a graphical mode.
Some keyboard character sequences required by Linux in the text mode might not be passed through to
iLO 2 Text Console. For example, the alt + tab keyboard combination might be intercepted by the client.
To work around these issues, configure a hot key for the keyboard combination. For more information,
see "Remote Console hot keys (on page 86)."
Virtual serial port and remote serial console
The management processor contains serial-port hardware that can replace the physical serial port on the
server's motherboard. Using an electronic switch, the iLO 2 firmware disconnects the server's physical
serial port and commands its own serial-port hardware to connect. The iLO 2 serial-port hardware
establishes a connection between the server and the management processor network. The firmware
encapsulates the characters sent by the server to the serial port into network packets and sends the
network packets to the remote serial console applet or application (the application may be a telnet or SSH
client). Characters sent by the remote applet or application are encapsulated into network packets and
sent to the iLO 2 firmware, which then extracts the characters and feeds them to the server. The iLO 2
remote serial console provides a bi-directional serial communication path between the remote user and
the server.
Using the iLO 2 remote serial console, the remote user is able to perform operations such as interacting
with the server POST sequence and operating system boot sequence; establishing a login session with the
Description
Down pointer
Shaded block
Mapped equivalent
v
blank space
Using iLO 2 102