AM4100
NetBootLoader
ID 36126, Rev. 2.0
Page 5 - 9
P R E L I M I N A R Y
Upon initiation of the command interpreter, a prompt is sent to the SER0 interface and com-
mands may be entered. To gain access to the NetBootLoader from a remote location via an
Ethernet port, a telnet login must be performed. If the boot wait time has not been exceeded, a
successful telnet login automatically terminates the boot operation and a command prompt is
sent to the telnet remote interface.
Once the operator has control of the NetBootLoader, he may perform any required action. To
continue with the operation of the AM4100, the system must either be cold started or the oper-
ator must issue a RESET command. In either event, the NetBootLoader is restarted and the
boot operation begins anew.
5.4.3
NetBootLoader Configuration
There are several NetBootLoader commands which provide the operator with the capability to
configure specific parameters which are used by the NetBootLoader for interfacing operations.
These commands are:
•
BW (BootWait)
•
CBL (Change Bootline)
•
DHCP
•
FDT
•
NET
•
PASSWD
•
PF (Port Format)
•
SCRIPT
•
SQ (Boot Sequence)
Default settings are available for all the above commands except for DHCP, NET, and SCRIPT.
5.4.3.1
BW
This command is used to display or set the actual boot wait time used by the NetBootLoader
to delay the boot operation before proceeding with the loading and starting of an application. If
this time is set too short it may not be possible to gain access to the NetBootLoader.
The boot wait time value is stored in the boot section of the serial EEPROM. This section is
validated with a CRC code to avoid the setting of random parameters.
To validate an invalid CRC, an operating system utility must be used, or, alternatively, the “-f”
option of the BW command must be issued.
N o t e . . .
If the CRC of the boot section is not valid, changing the boot wait time will have
no effect because the BW command does not validate an invalid CRC. In this
case, a default timing of 5 seconds is always used.
WA R N I N G !
Using the “bw -f” command to validate invalid entries may adversely impact the
operation of the operating system.
Summary of Contents for AM4100
Page 19: ...AM4100 Introduction ID 36126 Rev 2 0 Page 1 1 Introduction Chapter 1 1 P R E L I M I N A R Y...
Page 57: ...AM4100 Installation ID 36126 Rev 2 0 Page 3 1 Installation Chapter 1 3 P R E L I M I N A R Y...
Page 65: ...AM4100 Configuration ID 36126 Rev 2 0 Page 4 1 Configuration Chapter 1 4 P R E L I M I N A R Y...
Page 89: ...AM4100 NetBootLoader ID 36126 Rev 2 0 Page 5 1 NetBootLoader Chapter 1 5 P R E L I M I N A R Y...
