Integrated Lights-Out 3 Virtual Serial Port configuration and operation HOWTO, 6th edition
Table Of Contents
- Introduction
- Conceptual overview
- Security
- Configuration
- Operation
- Known issues
- For more information
- Call to action
18
Known issues
Issue
Details
Issue 1
Slow serial console response during BIOS redirection.
Description The BIOS redirection sends ANSI control codes with text, which may slow the speed of
the serial console during BIOS redirection process.
Solution HP engineers are working to resolve this issue.
Issue 2 Scrolling and text may appear irregular during BIOS redirection.
Description During BIOS redirection, the scrolling may not work properly. When you enter
commands in RBSU, the text may rapidly overwrite itself on the bottom line of the
terminal window.
Workaround The BIOS expects and controls a fixed 80x24 character window. When redirected to
the serial port, the BIOS still expects and controls a fixed 80x24 character window. If
the VSP client being used (SSH, HyperTerminal, or other terminal emulator) can resize
the window to a size other than 80x24, scrolling becomes confused and the screen
output appears garbled. To avoid this issue, configure the terminal emulator for a
window size of exactly 80x24.
Solution HP engineers are working to resolve this issue.
Issue 3 VSP-driven selection during the serial timeout window sends output to BIOS redirect instead of the VSP.
Description
The /etc/grub.conf file includes an option for a serial timeout window (terminal -
-timeout=10 serial console). This setting provides a window of time to select
a key stroke on the VSP or on the VGA console, and then the menu is output to the
corresponding device.
The BIOS serial redirect intercepts VSP keystrokes during this timeout window.
Workaround
To work around this issue, do not press a key for a VSP-driven selection during the
10-second timeout or turn off BIOS redirection to the VSP.
Solution HP engineers are working to resolve this issue.
Issue 4
Kudzu may display a message during the boot process to reconfigure ttyS1 (or the VSP).
Description Kudzu may display a message during the boot process to reconfigure ttyS1 (or the
VSP).
Solution HP engineers are working to resolve this issue.