Configuration Guide Configuring PKG_MGMT
This command is used to undo the last subsystem upgrade operation and make the subsystem restore to
the state before the upgrade. You can perform the rollback operation only if the last upgrade is subsystem
upgrade and the upgrade is successful. The rollback command cannot be executed in succession.
 Displaying the Feature Components Already Installed
show component [ component _name ]
[ component _name ]: component name
When this parameter value is N/A, the command is used to display all components already installed on the
device and basic information of these components.
When this parameter value is not N/A, the command is used to display detailed information of the
corresponding component, check whether the component is intact, and check whether this component
works properly.
 Displaying the Patch Packages Already Installed
show patch [ package _name ]
 Activating the Patches Temporarily
This operation can be performed only on the device already installed with a patch. This command can be
used to activate a patch temporarily, and the activated patch becomes invalid after device restart.
 Activating the Patches Permanently
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