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

Page 103

Advertising
background image

Using iLO 2 103

Character value

Description

Mapped equivalent

0x1E

Up pointer

^

0x1F

Down pointer

v

0xFF

Shaded block

blank space

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

87

)."

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.

Advertising