Storage Device Operation Submenu; Upgrading Bootware And Application Through A Serial Interface; Introduction To Xmodem - 3Com SECPATH U200-CS Installation Manual

Table 6-5 BootWare operation submenu
<1> Backup Full BootWare
<2> Restore Full BootWare
<3> Update BootWare By Serial
<4> Update BootWare By Ethernet
<0> Exit To Main Menu

Storage Device Operation Submenu

Select 9 on the BootWare main menu to enter the storage device operation submenu:
====================<DEVICE CONTROL>=========================
| <1> Display All Available Nonvolatile Storage Device(s)
| <2> Set The Operating Device
| <3> Set The Default Boot Device
| <0> Exit To Main Menu
=============================================================
Enter your choice(0-3):
Items on this submenu are described in the following table
Table 6-6 Storage device operation submenu
<1> Display All Available Nonvolatile Storage
Device(s)
<2> Set The Operating Device
<3> Set The Default Boot Device
<0> Exit To Main Menu

Upgrading BootWare and Application Through a Serial Interface

Introduction to Xmodem

Use Xmodem when upgrading BootWare or application through a serial interface.
Xmodem is a file transfer protocol that is widely used due to its simplicity and high performance.
Xmodem transfers files through a serial interface. It supports two types of data packets (128 bytes and
1 KB), two check methods (checksum and CRC), and error packet retransmission mechanism
(generally the maximum number of retransmission attempts is 10).
The Xmodem transmission procedure is completed by the cooperation of a receiving program and a
sending program. The receiving program sends a negotiation character to negotiate a packet check
method. After the negotiation, the sending program starts to transmit data packets. When receiving a
complete packet, the receiving program checks the packet using the agreed method.
Menu item
Menu item
Backup the full BootWare.
Restore the full BootWare.
Upgrade BootWare through a serial interface
Upgrade BootWare through Ethernet
Return to the BootWare main menu.
|
|
|
|
Display all available nonvolatile storage devices
Set the current operating device
Set the default boot device
Return to the BootWare main menu
6-9
Description
Description