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AR500, AR510, and AR530 V200R007 Commands Reference

This document describes all the configuration commands of the device, including the command function, syntax, parameters, views, default level, usage guidelines, examples, and related commands.
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app update

app update

Function

The app update command upgrades the system software of a PoE midspan in the BootROM menu.

Format

app update

Parameters

None

Usage Guidelines

Usage Scenario

Boot Read-Only Memory (BootROM) is a set of programs added to the ROM chip of a device. BootROM saves the device's most important input and output programs, system settings, startup self-check program, and system automatic startup program.

When the system crashes and you cannot enter the command line interface, you can run this command in the BootROM menu. Then the system software is transmitted using the Xmodem protocol to recover or upgrade the system.

Precautions

Ensure that the APP file is correct; otherwise, the device cannot start.

Example

# Upgrade the system software of a PoE midspan in the BootROM menu.

[Huawei] app update
 OK!                                                                            
                                                                                
BE CAREFUL!                                                                     
APP file in the device will be update.                                          
This may cause your system fail to start!                                       
Are you sure to update it? Yes or No :y
 APP UPDATE! Do not power off or cancel the operation!                          
                                                                                
Downloading File Using XModem Protocol...                                       
Press Ctrl+C to abort...CCC                                                     
app update success!                                                             
                                                                                
 173448 bytes downloaded!                                                       
                                                                                
Reboot NOW!                                                                     
                                      
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Updated: 2019-05-29

Document ID: EDOC1000097293

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