Configuration Guide Configuring PKG_MGMT
rootfs: rootfs is the collection of applications in the system.
Main Package
Main package is often used to upgrade/degrade a subsystem of the box-type device. The main package is a combination
package of the boot, kernel, and rootfs subsystems. The main package can be used for overall system upgrade/degradation.
Feature Package of RGOS
The feature package of RGOS refers to a collection which enables a certain feature. When the device is delivered, all
supported functions are contained in the rootfs subsystem. You can upgrade only a specific feature by upgrading a single
feature package.
Hot Patch Package
A hot patch package contains the hot patches of several features. You can upgrade a hot patch package to install patches for
various features. New features are provided immediately without device restart after the upgrade.
"Firmware" in this document refers to an installation file that contains a subsystem or feature module.
Overview
Upgrading/Degrading and
Managing Subsystem
Components
Upgrades/degrades a subsystem.
Upgrading/Degrading and
Managing Functional
Components
Upgrades/degrades a functional component.
Upgrading/Degrading and
Managing Hot Patch Packages
Installs a hot patch package.
3.1. Upgrading/Degrading and Managing Subsystem Components
Subsystem upgrade/degradation aims to upgrade the software by replacing the subsystem components of the device with
the subsystem components in the firmware. The subsystem component contains redundancy design. Subsystems of the
device are not directly replaced with the subsystems in the package during upgrade/degradation in most cases. Instead,
subsystems are added to the device and then activated during upgrade/degradation.
Working Principle
Upgrade/Degradation
Various subsystems exist on the device in different forms. Therefore, upgrade/degradation varies with different subsystems.
boot: Generally, this subsystem exists on the norflash device in the form of images. Therefore, upgrading/degrading this
subsystem is to write the image into the norflash device.
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