How are patch files loaded for VSs


System patch files can only be loaded in the Admin-VS, but not in other VSs.

Other related questions:
How to activate a patch file of an AR
When configuring system files, run the startup patch patch-name [ slave-board | all ] command to specify the patch file to be loaded for next startup. The patch file is activated after the AR restarts.
# Specify the patch file to be loaded for next startup.
<Huawei> startup patch patch.pat

Load and run a patch
Before loading a patch to a switch, upload the correct and valid patch package to the root directory (Flash:/) of the storage medium on the switch. Method 1: Load and then run the patch. patch load patch.pat all active //Load the patch in the system and then activate it. patch run all //Run the patch. Method 2: Load and run the patch simultaneously. patch load patch.pat all run //Load and run the patch.

How are patches loaded for SVF
When a patch is loaded for SVF, you only need to load the patch on the parent switch, not on the leaf switch. 

Perform the following operations:
1. Upload a patch package to the parent switch. The version of the patch must match the switch type.

2. Run the patch load filename all run command in the user view to load and run patches.

3. Run the display patch-information verbose command to check whether patches are loaded successfully.

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