Using a linux session, Virtual serial port and remote serial console – HP Integrated Lights-Out 2 User Manual

Page 99

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background image

Mapped equivalent

Description

Character value

>

Right arrow

0x1B

^

Up pointer

0x1E

v

Down pointer

0x1F

blank space

Shaded block

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 the 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” (page 83)

.

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
can 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.

iLO 2 Remote Console

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